NorkNork - Powershell Empire Persistence Finder

This script was designed to identify Powershell Empire persistence payloads on Windows systems. It currently supports checks for these persistence methods: Scheduled Tasks Auto-run WMI subscriptions Security Support provider Ease of Access Center backdoors Machine account password disable INSTALL...

Koadic - COM Command & Control Framework (JScript RAT)

Koadic, or COM Command & Control, is a Windows post-exploitation rootkit similar to other penetration testing tools such as Meterpreter and Powershell Empire. The major difference is that Koadic does most of its operations using Windows Script Host a.k.a. JScript/VBScript, with compatibility in t...

Updated kernel-tmb packages fixes security and other bugs

This kernel-tmb update is based on upstream 4.9.40 and fixes at least the following security issues: Linux kernel built with the VirtIO GPU driverCONFIGDRMVIRTIOGPU support is vulnerable to a memory leakage issue. It could occur while creating a virtio gpu object in virtiogpuobjectcreate. A...

Check for access via WMI

This routine checks if an access to the remote host with the Windows Management Instrumentation WMI method is possible by using the provided SMB login/password credentials. SPDX-FileCopyrightText: 2017 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are...

Windows WMI Receive Notification Exploit

This module exploits an uninitialized stack variable in the WMI subsystem of ntoskrnl. This module has been tested on vulnerable builds of Windows 7 SP0 x64 and Windows 7 SP1 x64. This module requires Metasploit: https://metasploit.com/download Current source:...

Koadic: An Advanced Windows JScript/VBScript RAT!

PenTestIT RSS Feed All of us know that post-exploitation we need some mechanism to maintain access on the target. One of the most common methods is by installing a trojan. I have tried to maintain a list of similar tools on the malware sources page on this blog. Now, there is a new entrant which...

Updated kernel packages fixes security and other bugs

This kernel update is based on upstream 4.9.40 and fixes at least the following security issues: Linux kernel built with the VirtIO GPU driverCONFIGDRMVIRTIOGPU support is vulnerable to a memory leakage issue. It could occur while creating a virtio gpu object in virtiogpuobjectcreate. A...

Virtual Apps and Desktops: Logon Duration in MonitorData.Session Table shows "Null"

Logon Duration inMonitorData.Session Table in Monitoring Database shows "Null" value for all sessions and hence Director does not report Average logon Duration for Sessions. Restarting the Monitoring Service on Delivery Controllers does not fix the issue. We used the below scripts to ensure thatO...

Critical Flaws Found in Windows NTLM Security Protocol – Patch Now

As part of this month's Patch Tuesday, Microsoft has released security patches for a serious privilege escalation vulnerability which affect all versions of its Windows operating system for enterprises released since 2007. Researchers at behavioral firewall specialist Preempt discovered two...

WMI Event Subscription Persistence Exploit

This Metasploit module will create a permanent WMI event subscription to achieve file-less persistence using one of five methods. This module requires Metasploit: http://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework require 'msf/core/exploit/powershell'...

WMI Event Subscription Persistence

This module requires Metasploit: http://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework require 'msf/core/exploit/powershell' require 'msf/core/post/windows/powershell' require 'msf/core/post/file' class MetasploitModule 'WMI Event Subscription Persistence',...

Obfuscation in the Wild: Targeted Attackers Lead the Way in Evasion Techniques

Throughout 2017 we have observed a marked increase in the use of command line evasion and obfuscation by a range of targeted attackers. Cyber espionage groups and financial threat actors continue to adopt the latest cutting-edge application whitelisting bypass techniques and introduce innovative...

Obfuscation in the Wild: Targeted Attackers Lead the Way in Evasion Techniques

Throughout 2017 we have observed a marked increase in the use of command line evasion and obfuscation by a range of targeted attackers. Cyber espionage groups and financial threat actors continue to adopt the latest cutting-edge application whitelisting bypass techniques and introduce innovative...

Adware the series, part 6

In this series of posts, we will be using the flowchart below to follow the process of determining which adware we are dealing with. Our objective is to give you an idea of how many different types of adware are around for Windows systems. Though most are classified as PUPs, you will also see the...

Petya Destructive Malware Variant Spreading via Stolen Credentials and EternalBlue Exploit

UPDATE July 21: FireEye continues to track this threat. An earlier version of this post has been updated to reflect new findings. On June 27, 2017, multiple organizations – many in Europe – reported significant disruptions they are attributing to a variant of the Petya ransomware, which we are...

New Ransomware Variant "Nyetya" Compromises Systems Worldwide

Note: This blog post discusses active research by Talos into a new threat. This information should be considered preliminary and will be updated as research continues.Update 2017-07-06 12:30 EDT: Updated to explain the modified DoublePulsar backdoor.Since the SamSam attacks that targeted US...

Windows Credential Guard Disabled

Binary data wmicredguard.nbin...

WannaCry coda: Have you disabled SMBv1?

By now, if you're reading this blog, you probably have read about WannaCry. If not, please take a moment to review: Wanna Decryptor WNCRY Ransomware Explained Using Threat Intelligence to Mitigate Wanna Decryptor WannaCry WannaCry Update: Vulnerable SMB Shares Are Widely Deployed And People Are...

WMI Event Subscription Persistence

This module will create a permanent WMI event subscription to achieve file-less persistence using one of five methods. The EVENT method will create an event filter that will query the event log for an EVENTIDTRIGGER default: failed logon request id 4625 that also contains a specified...

WMI Command Shell Wrapper: WMIcmd

WMI Command Shell Wrapper When doing low impact investigations and other similar activities you may want to minimize what is written to disk / obvious. This tool allows us to execute commands via WMI and get information not otherwise available via this channel. Purpose A small utility which only...