Detection rules › Sigma
Remote LSASS Process Access Through Windows Remote Management
Detects remote access to the LSASS process via WinRM. This could be a sign of credential dumping from tools like mimikatz.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1059.001 Command and Scripting Interpreter: PowerShell |
| Credential Access | T1003.001 OS Credential Dumping: LSASS Memory |
| Lateral Movement | T1021.006 Remote Services: Windows Remote Management |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 10 | ProcessAccess |
Stages and Predicates
Stage 1: selection
SourceImage|endswith: ':\Windows\system32\wsmprovhost.exe'
TargetImage|endswith: '\lsass.exe'
Stage 2: not 1 of filter_main_access
GrantedAccess: 0x80000000
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 |
|---|---|---|
GrantedAccess | eq |
|
SourceImage | ends_with |
|
TargetImage | ends_with |
|
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.
- Potentially Suspicious GrantedAccess Flags On LSASS (drops 1 filter this rule applies)