IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
LSASS Process Access via Windows APIedit
Identifies access attempts to the LSASS handle, which may indicate an attempt to dump credentials from LSASS memory.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Domain: Endpoint
- OS: Windows
- Use Case: Threat Detection
- Tactic: Credential Access
- Tactic: Execution
- Data Source: Elastic Defend
Version: 5
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule queryedit
api where host.os.type == "windows" and
process.Ext.api.name in ("OpenProcess", "OpenThread") and Target.process.name : "lsass.exe" and
not
(
process.executable : (
"?:\\ProgramData\\GetSupportService*\\Updates\\Update_*.exe",
"?:\\ProgramData\\Microsoft\\Windows Defender\\Platform\\*\\MsMpEng.exe",
"?:\\Program Files (x86)\\Asiainfo Security\\OfficeScan Client\\NTRTScan.exe",
"?:\\Program Files (x86)\\Blackpoint\\SnapAgent\\SnapAgent.exe",
"?:\\Program Files (x86)\\eScan\\reload.exe",
"?:\\Program Files (x86)\\Google\\Update\\GoogleUpdate.exe",
"?:\\Program Files (x86)\\Kaspersky Lab\\*\\avp.exe",
"?:\\Program Files (x86)\\N-able Technologies\\Reactive\\bin\\NableReactiveManagement.exe",
"?:\\Program Files (x86)\\N-able Technologies\\Windows Agent\\bin\\agent.exe",
"?:\\Program Files (x86)\\Trend Micro\\*\\CCSF\\TmCCSF.exe",
"?:\\Program Files*\\Windows Defender\\MsMpEng.exe",
"?:\\Program Files\\Bitdefender\\Endpoint Security\\EPSecurityService.exe",
"?:\\Program Files\\Cisco\\AMP\\*\\sfc.exe",
"?:\\Program Files\\Common Files\\McAfee\\AVSolution\\mcshield.exe",
"?:\\Program Files\\EA\\AC\\EAAntiCheat.GameService.exe",
"?:\\Program Files\\Elastic\\Agent\\data\\elastic-agent-*\\components\\metricbeat.exe",
"?:\\Program Files\\Elastic\\Agent\\data\\elastic-agent-*\\components\\osqueryd.exe",
"?:\\Program Files\\Elastic\\Agent\\data\\elastic-agent-*\\components\\packetbeat.exe",
"?:\\Program Files\\ESET\\ESET Security\\ekrn.exe",
"?:\\Program Files\\Fortinet\\FortiClient\\FortiProxy.exe",
"?:\\Program Files\\Huntress\\HuntressAgent.exe",
"?:\\Program Files\\LogicMonitor\\Agent\\bin\\sbshutdown.exe",
"?:\\Program Files\\Microsoft Security Client\\MsMpEng.exe",
"?:\\Program Files\\Qualys\\QualysAgent\\QualysAgent.exe",
"?:\\Program Files\\TDAgent\\ossec-agent\\ossec-agent.exe",
"?:\\Program Files\\Topaz OFD\\Warsaw\\core.exe",
"?:\\Program Files\\VMware\\VMware Tools\\vmtoolsd.exe",
"?:\\Windows\\AdminArsenal\\PDQDeployRunner\\*\\exec\\Sysmon64.exe",
"?:\\Windows\\Sysmon.exe",
"?:\\Windows\\Sysmon64.exe",
"?:\\Windows\\System32\\csrss.exe",
"?:\\Windows\\System32\\MRT.exe",
"?:\\Windows\\System32\\msiexec.exe",
"?:\\Windows\\System32\\RtkAudUService64.exe",
"?:\\Windows\\System32\\wbem\\WmiPrvSE.exe",
"?:\\Windows\\SysWOW64\\wbem\\WmiPrvSE.exe"
) and process.code_signature.trusted == true
)
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/
-
Sub-technique:
- Name: LSASS Memory
- ID: T1003.001
- Reference URL: https://attack.mitre.org/techniques/T1003/001/
-
Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
-
Technique:
- Name: Native API
- ID: T1106
- Reference URL: https://attack.mitre.org/techniques/T1106/