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Potential RemoteFXvGPUDisablement.EXE Abuse - PowerShell ScriptBlock

Sigma Rules

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Summary
This detection rule focuses on identifying a potential abuse of the "RemoteFXvGPUDisablement.exe" binary using PowerShell. Specifically, it detects instances where a PowerShell script block creates a module with the function definition starting with "function Get-VMRemoteFXPhysicalVideoAdapter {. This is significant because the RemoteFX technology has been associated with vulnerabilities that an attacker may exploit, particularly through module load-order hijacking. When the defined script block text is encountered in the execution context, it triggers an alert, indicating a possible malicious attempt to leverage this known binary in a harmful manner.
Categories
  • Windows
  • Endpoint
Data Sources
  • Script
  • Application Log
ATT&CK Techniques
  • T1218
Created: 2023-05-09