Uncategorized

WMEye : A Post Exploitation Tool That Uses WMI Event Filter And MSBuild Execution For Lateral Movement

WMEye is an experimental tool that was developed when exploring about Windows WMI. The tool is developed for performing Lateral Movement using WMI and remote MSBuild Execution. It uploads the encoded/encrypted shellcode into remote targets WMI Class Property, create an event filter that when triggered writes an MSBuild based Payload using a special WMI Class called Log File Event Consumer and finally executes the payload remotely.

UseCase

Fileless Lateral Movement using WMI, can be used with Cobalt Strike’s Execute-Assembly

Note: This is still in experimental stage and no where near to be used in a real engagement.

Preview

Current Working

  • Creates a Remote WMI Class
  • Writes Shellcode as property value to the above created Fake WMI Class
  • Creates a WMI Event Filter to trigger on powershell.exe process creation
  • On Event Trigger, it Uploads MSBuild Payload into remote system using LogFileEventConsumer (A WMI Consumer type to write Log Files)
  • Finally Invoke Win32_Process Create to call MSbuild remotely

The MSBuild Payload fetches encoded shellcode from WMI Class Property, decodes and executes it.

Upcoming Features

  • Replace WIN32_Process Create method of invocation with something better
  • Add GZIP Compression for Shellcode and XML File Bytes
  • Add NTLM PTH Support
  • Add CleanUp Functions for removing event filter after the logfileeventconsumer finished writing the MSBuild Payload

Whats Unique in this Project ?

  • Uploads the encoded/encrypted shellcode to remote machines WMI property on a Created Fake Class (can maybe tweak to write shellcode into existing class’s Property)
  • Uses LogFileEventConsumer to upload MSBuild File , instead of relying in spawning Powershell.exe using win32_process Create
R K

Recent Posts

cp Command: Copy Files and Directories in Linux

The cp command, short for "copy," is the main Linux utility for duplicating files and directories. Whether…

7 days ago

Image OSINT

Introduction In digital investigations, images often hold more information than meets the eye. With the…

7 days ago

cat Command: Read and Combine File Contents in Linux

The cat command short for concatenate, It is a fast and versatile tool for viewing and merging…

7 days ago

Port In Networking

What is a Port? A port in networking acts like a gateway that directs data…

1 week ago

ls Command: List Directory Contents in Linux

The ls command is fundamental for anyone working with Linux. It’s used to display the files and…

1 week ago

pwd Command: Find Your Location in Linux

The pwd (Print Working Directory) command is essential for navigating the Linux filesystem. It instantly shows your…

1 week ago