Detection rules › Sigma
HackTool - HandleKatz Duplicating LSASS Handle
Detects HandleKatz opening LSASS to duplicate its handle to later dump the memory without opening any new handles
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1106 Native API |
| Credential Access | T1003.001 OS Credential Dumping: LSASS Memory |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 10 | ProcessAccess |
Stages and Predicates
Stage 1: selection
CallTrace|endswith: ')'
CallTrace|contains: '|UNKNOWN('
CallTrace|startswith: 'C:\Windows\System32\ntdll.dll+'
GrantedAccess: 0x1440
TargetImage|endswith: '\lsass.exe'
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 |
|---|---|---|
CallTrace | ends_with |
|
CallTrace | match |
|
CallTrace | starts_with |
|
GrantedAccess | eq |
|
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 4 filters this rule applies)