Stages and Predicates
Stage 1: selection
Image|endswith: '\svchost.exe'
Stage 2: not 1 of filter_main_*
or:
ParentImage|endswith: '\Mrt.exe'
ParentImage|endswith: '\MsMpEng.exe'
ParentImage|endswith: '\TiWorker.exe'
ParentImage|endswith: '\ngen.exe'
ParentImage|endswith: '\rpcnet.exe'
ParentImage|endswith: '\services.exe'
ParentImage: ''
ParentImage: -
ParentImage: null
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 | \svchost.exe corpus 20 (sigma 20)
|
ParentImage | ends_with | \Mrt.exe\MsMpEng.exe corpus 3 (sigma 3)\TiWorker.exe\ngen.exe corpus 2 (sigma 2)\rpcnet.exe corpus 2 (sigma 2)\services.exe corpus 7 (sigma 7)
|
ParentImage | eq | |
Neighbors
Stricter alternatives (narrower than this rule)
The rules below may be useful if you find the current rule is too noisy / lacks specificity.