Detection rules › Sigma
Possible Impacket SecretDump Remote Activity
Detect AD credential dumping using impacket secretdump HKTL
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Credential Access | T1003.002 OS Credential Dumping: Security Account Manager, T1003.003 OS Credential Dumping: NTDS, T1003.004 OS Credential Dumping: LSA Secrets |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Security-Auditing | 5145 | A network share object was checked to see whether client can be granted desired access. |
Stages and Predicates
Stage 1: selection
RelativeTargetName|contains: .tmp
RelativeTargetName|contains: 'SYSTEM32\'
ShareName: '\\\\\*\\ADMIN$'
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 |
|---|---|---|
RelativeTargetName | match |
|
ShareName | eq |
|
Neighbors
Broader alternatives (more inclusive than this rule)
These rules match a superset of what this rule catches. They cover the same events plus more. Use them if you want wider coverage and can absorb more false positives.
- Transferring Files with Credential Data via Network Shares (drops 3 filters this rule applies)