CVE-2020-7261 Buffer overwrite in ENS allowed to bypass AMSI protection

Buffer Overflow via Environment Variables vulnerability in AMSI component in McAfee Endpoint Security ENS Prior to 10.7.0 February 2020 Update allows local users to disable Endpoint Security via a carefully crafted user input...

CVE-2020-7261

CVE-2020-7261 affects McAfee Endpoint Security (ENS) in the AMSI component. A buffer overflow via environment variables in ENS prior to 10.7.0 (February 2020 Update) can allow a local attacker to disable Endpoint Security by supplying crafted input. The vulnerability is limited to local access (a...

CVE-2020-7261: Improper Restriction of Operations within the Bounds of a Memory Buffer

Buffer Overflow via Environment Variables vulnerability in AMSI component in McAfee Endpoint Security ENS Prior to 10.7.0 February 2020 Update allows local users to disable Endpoint Security via a carefully crafted user input...

PT-2020-5633

Name of the Vulnerable Software and Affected Versions McAfee Endpoint Security ENS versions prior to 10.7.0 February 2020 Update Description The issue is related to a Buffer Overflow via Environment Variables vulnerability in the AMSI component of McAfee Endpoint Security. This vulnerability can ...

Execute .net Assembly (x64 only)

This module executes a .NET assembly in memory. It reflectively loads a dll that will host CLR, then it copies the assembly to be executed into memory. Credits for AMSI bypass to Rastamouse @RastaMouse This module requires Metasploit: https://metasploit.com/download Current source:...

Detecting Fileless Attacks with Enterprise EDR’s AMSI Visibility

If this year’s 2020 Cybersecurity Outlook Report taught us anything, it’s that defenders are seeing an increasing amount of defense evasion techniques in their environments. It’s crucial for security teams to have the granular visibility they need to spot malicious attacker behavior, however...

PT-2020-1715

Name of the Vulnerable Software and Affected Versions Microsoft Exchange Server affected versions not specified Description A remote code execution issue exists in Microsoft Exchange Server due to the failure to properly create unique keys during installation. This flaw, also referred to as a...

WinPwn - Automation For Internal Windows Penetrationtest / AD-Security

In many past internal penetration tests I often had problems with the existing Powershell Recon / Exploitation scripts due to missing proxy support. I often ran the same scripts one after the other to get information about the current system and/or the domain. To automate as many internal...

Evil-Winrm v1.9 - The Ultimate WinRM Shell For Hacking/Pentesting

This shell is the ultimate WinRM shell for hacking/pentesting. WinRM Windows Remote Management is the Microsoft implementation of WS-Management Protocol. A standard SOAP based protocol that allows hardware and operating systems from different vendors to interoperate. Microsoft included it in thei...

Donut - Generates X86, X64, Or AMD64+x86 Position-Independent Shellcode That Loads .NET Assemblies, PE Files, And Other Windows Payloads From Memory

Donut generates x86 or x64 shellcode from VBScript, JScript, EXE, DLL including .NET Assemblies files. This shellcode can be injected into an arbitrary Windows processes for in-memory execution. Given a supported file type, parameters and an entry point where applicable such as Program.Main, it...

Salsa Tools - ShellReverse TCP/UDP/ICMP/DNS/SSL/BINDTCP and AV bypass, AMSI patched

Salsa Tools is a collection of three different tools that combined, allows you to get a reverse shell on steroids in any Windows environment without even needing PowerShell for it's execution. In order to avoid the latest detection techniques AMSI, most of the components were initially written on...

AutoRDPwn v4.5 - The Shadow Attack Framework

AutoRDPwn is a script created in Powershell and designed to automate the Shadow attack on Microsoft Windows computers. This vulnerability allows a remote attacker to view his victim's desktop without his consent, and even control it on request. For its correct operation, it is necessary to comply...

Out of sight but not invisible: Defeating fileless malware with behavior monitoring, AMSI, and next-gen AV

Consider this scenario: Two never-before-seen, heavily obfuscated scripts manage to slip past file-based detection and dynamically load an info-stealing payload into memory. The scripts are part of a social engineering campaign that tricks potential victims into running the scripts, which use the...

SharpSploit - A .NET Post-Exploitation Library Written In C#

SharpSploit is a .NET post-exploitation library written in C that aims to highlight the attack surface of .NET and make the use of offensive .NET easier for red teamers. SharpSploit is named, in part, as a homage to the PowerSploit project, a personal favorite of mine! While SharpSploit does port...

Office VBA + AMSI: Parting the veil on malicious macros

As part of our continued efforts to tackle entire classes of threats, Office 365 client applications now integrate with Antimalware Scan Interface AMSI, enabling antivirus and other security solutions to scan macros and other scripts at runtime to check for malicious behavior. Macro-based threats...

Windows Defender ATP の機械学習と Antimalware Scan Interface: スクリプトを悪用した「環境寄生型」攻撃の検出

本記事は、Microsoft Secure のブログ “Windows Defender ATP machine learning and AMSI: Unearthing script-based attacks that ‘live off the land’”...

Windows Defender ATP machine learning and AMSI: Unearthing script-based attacks that ‘live off the land’

Scripts are becoming the weapon of choice of sophisticated activity groups responsible for targeted attacks as well as malware authors who indiscriminately deploy commodity threats. Scripting engines such as JavaScript, VBScript, and PowerShell offer tremendous benefits to attackers. They run...

Windows Defender ATP machine learning and AMSI: Unearthing script-based attacks that ‘live off the land’

Scripts are becoming the weapon of choice of sophisticated activity groups responsible for targeted attacks as well as malware authors who indiscriminately deploy commodity threats. Scripting engines such as JavaScript, VBScript, and PowerShell offer tremendous benefits to attackers. They run...

Windows Defender ATP machine learning and AMSI: Unearthing script-based attacks that ‘live off the land’

Scripts are becoming the weapon of choice of sophisticated activity groups responsible for targeted attacks as well as malware authors who indiscriminately deploy commodity threats. Scripting engines such as JavaScript, VBScript, and PowerShell offer tremendous benefits to attackers. They run...

AMSI <= 3.20.47 build 37 Directory Traversal Vulnerability - Active Check

Academia Management Solutions International AMSI is prone to a directory traversal vulnerability. SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-on...