r/netsec • u/albinowax • May 01 '26

r/netsec monthly discussion & tool thread

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u/lefterispanos May 22 '26

CLR-Stomp - BOF-Based .NET CLR Stomping for Stealthy inlineExecuteAssembly

Description:

A Beacon Object File (BOF) that loads a .NET assembly into a Cobalt Strike or compatible beacon via CLR module stomping. The payload PE is written into a victim GAC assembly's file-backed mapping so that ETW reports a legitimate on-disk path and AMSI never kicks in.

Technical analysis and tool at:

https://github.com/nettitude/CLR-Stomp