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Suspicious Process Execution via Renamed PsExec Executable
editSuspicious Process Execution via Renamed PsExec Executable
editIdentifies suspicious psexec activity which is executing from the psexec service that has been renamed, possibly to evade detection.
Rule type: query
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Execution
Version: 1
Added (Elastic Stack release): 7.10.0
Rule authors: Elastic
Rule license: Elastic License
Rule query
editevent.category:process and event.type:(start or process_started) and (process.pe.original_file_name:(psexesvc.exe or PSEXESVC.exe) or winlog.event_data.OriginalFileName:(psexesvc.exe or PSEXESVC.exe)) and process.parent.name:services.exe and not process.name:(psexesvc.exe or PSEXESVC.exe)
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
-
Technique:
- Name: Service Execution
- ID: T1035
- Reference URL: https://attack.mitre.org/techniques/T1035/