Overview In this post, I am going to go over how to use WinRM to laterally move within an Active Directory network and to try and blend in with the noise. While WinRM does give you the ability to run remote commands, it may be limited in what it can access without pushing payloads to […]
Stealthy Lateral Movement Techniques with WinRM Read More »
Introduction A few weeks ago, there was a post on reddit asking for advice on how to get their AMSI bypass through Windows Defender without being detected. Recently, it has become much more difficult to build payloads that can evade detection. Microsoft has out a ton of effort into deploying good heuristic signatures to block
Bypassing AMSI and Evading AV Detection with SpecterInsight Read More »
Overview In this post, we will build an automated pipeline for generating a .NET loader payload that can evade both AV detection and application controls. The tools used in this post are: What is a Payload Pipeline A payload pipeline is an automated process for generating red team payloads that can evade detection by antivirus,
Building a RuntimeInstaller Payload Pipeline to Evade AV Detection Read More »
Introduction Recently, Microsoft has rolled out memory scanning signatures to detect manipulation of security critical userland APIs such as AMSI.dll::AmsiScanBuffer. You can read about the details on this post. For us red teamers, that means the era of overwriting or hooking that method to bypass the Anti-Malware Scan Interface (AMSI) incoming to an end. So
New AMSI Bypss Technique Modifying CLR.DLL in Memory Read More »
Overview In this post, we are going to demonstrate how to build a script to automate persistence lay down via WMI Event Subscription and dynamically generated PowerShell payloads. By the end, we will have a single parameterized script that can be leveraged to establish signature resistant persistence, thus alleviating much of the tedious manual work
Persistence with WMI Event Subscription and PowerShell Cradles Read More »
Introduction In this article, I will present a new technique to bypass Microsoft’s Anti-Malware Scan Interface (AMSI) using API Call Hooking of CLR methods. When executed on a Windows system, this AMSI bypass will prevent the current process from passing any more data to the installed AV, thus allowing for malicious code to be loaded
New AMSI Bypass Using CLR Hooking Read More »
