Detection rules › Elastic
Suspicious LSASS Access via MalSecLogon
Identifies suspicious access to LSASS handle from a call trace pointing to seclogon.dll and with a suspicious access rights value. This may indicate an attempt to leak an LSASS handle via abusing the Secondary Logon service in preparation for credential access.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| 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
process.name:"svchost.exe" and winlog.event_data.CallTrace:"seclogon.dll" and winlog.event_data.GrantedAccess:0x14c0 and winlog.event_data.TargetImage:"?:\\WINDOWS\\system32\\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 |
|---|---|---|
process.name | wildcard |
|
winlog.event_data.CallTrace | wildcard |
|
winlog.event_data.GrantedAccess | eq |
|
winlog.event_data.TargetImage | wildcard |
|