Psr.exe

Record a user screen without creating a GUI. You should use "psr.exe /stop" to stop recording and create output file.

Use Can be used to take screenshots of the user environment

psr.exe /start /output {PATH_ABSOLUTE:.zip} /sc 1 /gui 0

Context

user

Native

Reconnaissance

MITRE

T1113

Detection

Sigma: github.com/SigmaHQ/sigma/blob/c04bef2fbbe8beff6c7620d5d7ea6872dbe7acba/rules/windows/process_creation/proc_creation_win_psr_capture_screenshots.yml

IOC: psr.exe spawned

IOC: suspicious activity when running with "/gui 0" flag

Refs

social.technet.microsoft.com/wiki/contents/articles/51722.windows-problem-steps-recorder-psr-quick-and-easy-documenting-of-your-steps-and-procedures.aspx

lolbas-project.github.io/lolbas/Binaries/Psr/