Potential Process Reconnaissance via Wmic.EXE
A Sigma rule for process creation on Windows, by frack113.
medium 2 ATT&CK techniques 1 program it names 2 everyday examples trip it
What it looks for
detection:
filter_main_creation:
CommandLine|contains|all:
- 'call'
- 'create'
filter_main_terminate:
CommandLine|contains|all:
- 'call'
- 'terminate'
selection_cli:
CommandLine|contains: 'process'
selection_img:
- Image|endswith: '\WMIC.exe'
- OriginalFileName: 'wmic.exe'
condition: all of selection* and not 1 of filter_main_*
The rule’s detection, its selections and fields in order of name. The whole rule, with its references and false positives, is on SigmaHQ, by frack113, under the Detection Rule License 1.1. CmdID evaluates it on a command line alone: a test on what a command line cannot show, such as the parent process or the user, is not met.
Command lines that trip it
Show brief details about the currently running processes on the page for wmic.exe
wmic process list briefIdentifyShow full details about the currently running processes on the page for wmic.exe
wmic process list fullIdentifyThe commands LOLBAS or GTFOBins documents for wmic.exe trip it too: each is on its program’s page, read by CmdID.