.. / Wlrmdr.exe
Star

Execute

Windows Logon Reminder executable

Paths:

c:\windows\system32\wlrmdr.exe

Resources:

Acknowledgements:

Grzegorz Tworek (@0gtweet)
Oddvar Moe (@Oddvarmoe)
Freddy (@falsneg)

Detection:

Sigma: https://github.com/SigmaHQ/sigma/blob/35a7244c62820fbc5a832e50b1e224ac3a1935da/rules/windows/process_creation/proc_creation_win_lolbin_wlrmdr.yml
IOC: wlrmdr.exe spawning any new processes

Execute

Execute calc.exe with wlrmdr.exe as parent process

wlrmdr.exe -s 3600 -f 0 -t _ -m _ -a 11 -u calc.exe

Usecase: Use wlrmdr as a proxy binary to evade defensive countermeasures
Privileges required: User
OS: Windows 10, Windows 11
MITRE ATT&CK®: T1202