Execution Of Non-Existing File
A Sigma rule for process creation on Windows, by Max Altgelt (Nextron Systems).
high 1 ATT&CK technique
What it looks for
detection:
filter_main_image_absolute_path:
Image|contains: '\'
filter_optional_4688:
- Image:
- 'MemCompression'
- 'Registry'
- 'System'
- 'vmmem'
- 'vmmemWSL'
- CommandLine:
- 'MemCompression'
- 'Registry'
- 'vmmem'
- 'vmmemWSL'
filter_optional_empty:
Image:
- '-'
- ''
filter_optional_null:
Image: null
condition: not 1 of filter_main_* and not 1 of filter_optional_*
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 Max Altgelt (Nextron Systems), 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.
None of the everyday examples and documented commands on CmdID’s program pages trips it. To see whether a command line does, paste it into CmdID.
ATT&CK
T1055Process Injection