Detection rules › Sigma
ADCS Certificate Template Configuration Vulnerability with Risky EKU
Detects certificate creation with template allowing risk permission subject and risky EKU
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Security-Auditing | 4898 | Certificate Services loaded a template. |
| Security-Auditing | 4899 | A Certificate Services template was updated. |
Stages and Predicates
Stage 1: selection10
or:
TemplateContent|contains: 1.3.6.1.4.1.311.20.2.2
TemplateContent|contains: 1.3.6.1.5.2.3.4
TemplateContent|contains: 1.3.6.1.5.5.7.3.2
TemplateContent|contains: 2.5.29.37.0
Stage 2: selection11
TemplateContent|contains: 'CT_FLAG_ENROLLEE_SUPPLIES_SUBJECT'
Stage 3: selection20
or:
NewTemplateContent|contains: 1.3.6.1.4.1.311.20.2.2
NewTemplateContent|contains: 1.3.6.1.5.2.3.4
NewTemplateContent|contains: 1.3.6.1.5.5.7.3.2
NewTemplateContent|contains: 2.5.29.37.0
Stage 4: selection21
NewTemplateContent|contains: 'CT_FLAG_ENROLLEE_SUPPLIES_SUBJECT'
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 |
|---|---|---|
NewTemplateContent | match |
|
TemplateContent | match |
|
Neighbors
Often fire together
Rules that target events appearing in the same incident timelines. They pattern-match on adjacent steps of the same TTP, so an alert from one is often paired with alerts from these. Useful for triage context and for assembling chained-detection rules.
Share event IDs (chain-detection candidates)
Rules that observe the same Windows event-ID pairs as this one. If you're authoring a multi-stage / sequence rule that spans these events, these are the existing detections that already cover one or both endpoints.