LOLBAS/Archive-Old-Version/OSBinaries/Regasm.exe.md

Regasm.exe

• Functions: Execute

regasm.exe /U AllTheThingsx64.dll
Loads the target .DLL file and executes the UnRegisterClass function.

regasm.exe AllTheThingsx64.dll
Loads the target .DLL file and executes the RegisterClass function.

• Resources:

  • https://pentestlab.blog/2017/05/19/applocker-bypass-regasm-and-regsvcs/
  • https://github.com/redcanaryco/atomic-red-team/blob/master/Windows/Payloads/RegSvcsRegAsmBypass.cs
  • https://github.com/redcanaryco/atomic-red-team/blob/master/Windows/Execution/RegsvcsRegasm.md
  • https://oddvar.moe/2017/12/13/applocker-case-study-how-insecure-is-it-really-part-1/

• Full path:

  • C:\Windows\Microsoft.NET\Framework\v2.0.50727\regasm.exe
  • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\regasm.exe
  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\regasm.exe

• Notes: Thanks to Casey Smith - @subtee