Detection rules › Sigma
Renamed NirCmd.EXE Execution
Detects the execution of a renamed "NirCmd.exe" binary based on the PE metadata fields.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1059 Command and Scripting Interpreter |
| Defense Evasion | T1202 Indirect Command Execution |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 1 | Process creation |
Stages and Predicates
Stage 1: selection
OriginalFileName: NirCmd.exe
Stage 2: not 1 of filter_main_img
or:
Image|endswith: '\nircmd.exe'
Image|endswith: '\nircmdc.exe'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
Image | ends_with |
|
OriginalFileName | eq |
|