Windows Logon Reminder executable
wlrmdr.exe -s 3600 -f 0 -t _ -m _ -a 11 -u calc.exe
Execute calc.exe with wlrmdr.exe as parent process
Use wlrmdr as a proxy binary to evade defensive countermeasures
c:\windows\system32\wlrmdr.exe
Sigma: https://github.com/SigmaHQ/sigma/blob/683b63f8184b93c9564c4310d10c571cbe367e1e/rules/windows/process_creation/proc_creation_win_lolbin_wlrmdr.yml, IOC: wlrmdr.exe spawning any new processes
Grzegorz Tworek (@0gtweet), Oddvar Moe (@Oddvarmoe), Freddy (@falsneg)