PsExec Network Connectionedit
Identifies use of the SysInternals tool PsExec.exe making a network connection. This could be an indication of lateral movement.
Rule type: eql
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
- logs-windows.*
Severity: low
Risk score: 21
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: 7 (version history)
Added (Elastic Stack release): 7.6.0
Last modified (Elastic Stack release): 7.12.0
Rule authors: Elastic
Rule license: Elastic License v2
Potential false positivesedit
PsExec is a dual-use tool that can be used for benign or malicious activity. It’s important to baseline your environment to determine the amount of noise to expect from this tool.
Rule queryedit
sequence by process.entity_id [process where process.name : "PsExec.exe" and event.type == "start"] [network where process.name : "PsExec.exe"]
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
-
Technique:
- Name: System Services
- ID: T1569
- Reference URL: https://attack.mitre.org/techniques/T1569/
-
Tactic:
- Name: Lateral Movement
- ID: TA0008
- Reference URL: https://attack.mitre.org/tactics/TA0008/
Rule version historyedit
- Version 7 (7.12.0 release)
-
- Formatting only
- Version 6 (7.11.0 release)
-
- Formatting only
- Version 5 (7.10.0 release)
-
-
Updated query, changed from:
event.category:network and event.type:connection and process.name:PsExec.exe
-
- Version 4 (7.9.1 release)
-
- Formatting only
- Version 3 (7.9.0 release)
-
-
Updated query, changed from:
process.name:PsExec.exe and event.action:"Network connection detected (rule: NetworkConnect)"
-
- Version 2 (7.7.0 release)
-
-
Updated query, changed from:
process.name:PsExec.exe and event.action:"Network connection detected (rule: NetworkConnect)"
-