Microsoft Workflow Compiler Execution
A Sigma rule for process creation on Windows, from SigmaHQ’s threat hunting rules, by Nik Seetharaman, frack113.
medium 2 ATT&CK techniques 1 program it names
What it looks for
detection:
selection:
- Image|endswith: '\Microsoft.Workflow.Compiler.exe'
- OriginalFileName: 'Microsoft.Workflow.Compiler.exe'
condition: selection
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 Nik Seetharaman, 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
The commands LOLBAS or GTFOBins documents for microsoft.workflow.compiler.exe trip it: each is on its program’s page, read by CmdID.