Assembly Loading Via CL_LoadAssembly.ps1

SigmaHQ Detections@sigmaHQ

•updated Aug 12, 2024•0•16

This rule detects command-line executions that include specific function calls, 'LoadAssemblyFromPath' or 'LoadAssemblyFromNS', which are associated with the 'CL_LoadAssembly.ps1' script. This script can be leveraged to load .NET assemblies, potentially bypassing AppLocker controls and executing arbitrary code. The detection focuses on instances where these function calls are made directly via command-line arguments, such as through PowerShell's '-Command' or '-ScriptBlock' flags.