Detection rules › Elastic
Potential Credential Access via LSASS Memory Dump
Identifies suspicious access to LSASS handle from a call trace pointing to DBGHelp.dll or DBGCore.dll, which both export the MiniDumpWriteDump method that can be used to dump LSASS memory content in preparation for credential access.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1106 Native API |
| Credential Access | T1003 OS Credential Dumping, T1003.001 OS Credential Dumping: LSASS Memory |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 10 | ProcessAccess |
Stages and Predicates
Stage 1: eql:process
not process.executable:"?:\\Windows\\System32\\WerFault.exe" and winlog.event_data.CallTrace:"dbghelp" and winlog.event_data.TargetImage:"?:\\WINDOWS\\system32\\lsass.exe"Exclusions
Top-level NOT(...) conjuncts — predicates this rule actively suppresses.
| Stage | Field | Kind | Excluded values |
|---|---|---|---|
| 1 | Image | eq | ?:\Windows\System32\WerFault.exe, ?:\Windows\SysWOW64\WerFault.exe, ?:\Windows\System32\WerFaultSecure.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 |
|---|---|---|
winlog.event_data.CallTrace | wildcard |
|
winlog.event_data.TargetImage | wildcard |
|