IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Potential LSASS Memory Dump via PssCaptureSnapShotedit
Identifies suspicious access to an LSASS handle via PssCaptureSnapShot where two successive process accesses are performed by the same process and target two different instances of LSASS. This may indicate an attempt to evade detection and dump LSASS memory for credential access.
Rule type: threshold
Rule indices:
- winlogbeat-*
- logs-windows.*
Severity: high
Risk score: 73
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Credential Access
Version: 3 (version history)
Added (Elastic Stack release): 8.0.0
Last modified (Elastic Stack release): 8.2.0
Rule authors: Elastic
Rule license: Elastic License v2
Investigation guideedit
## Config This is meant to run only on datasources using Elastic Agent 7.14+ since versions prior to that will be missing the threshold rule cardinality feature.
Rule queryedit
event.category:process and event.code:10 and
winlog.event_data.TargetImage:("C:\\Windows\\system32\\lsass.exe" or
"c:\\Windows\\system32\\lsass.exe" or
"c:\\Windows\\System32\\lsass.exe")
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
-
Technique:
- Name: OS Credential Dumping
- ID: T1003
- Reference URL: https://attack.mitre.org/techniques/T1003/
Rule version historyedit
- Version 3 (8.2.0 release)
-
- Formatting only
- Version 2 (8.1.0 release)
-
- Formatting only