Detection rules › Sigma
Possible Shadow Credentials Added
Detects possible addition of shadow credentials to an active directory object.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | T1556 Modify Authentication Process |
| Defense Evasion | T1556 Modify Authentication Process |
| Credential Access | T1556 Modify Authentication Process |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Security-Auditing | 5136 | A directory service object was modified. |
Stages and Predicates
Stage 1: selection
AttributeLDAPDisplayName: msDS-KeyCredentialLink
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 |
|---|---|---|
AttributeLDAPDisplayName | 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.
- Potential Shadow Credentials added to AD Object (adds 2 filters)