The SIEM app is now a part of the Elastic Security solution.
Click
here to view the current documentation.
IMPORTANT: No additional bug fixes or documentation updates will be released for this version.
IMPORTANT: No additional bug fixes or documentation updates will be released for this version.
PsExec Network Connection
editPsExec Network Connection
editIdentifies use of the SysInternals tool PsExec.exe making a network
connection. This could be an indication of lateral movement.
Rule type: query
Rule indices:
- winlogbeat-*
Severity: low
Risk score: 21
Runs every: 5 minutes
Searches indices from: now-6m (Date Math format, see also Additional look-back time)
Maximum signals per execution: 100
Tags:
- Elastic
- Windows
Version: 2 (version history)
Added (Elastic Stack release): 7.6.0
Last modified (Elastic Stack release): 7.7.0
Potential false positives
editPsExec 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 query
editprocess.name:PsExec.exe and event.action:"Network connection detected (rule: NetworkConnect)"
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/
-
Tactic:
- Name: Lateral Movement
- ID: TA0008
- Reference URL: https://attack.mitre.org/tactics/TA0008/
-
Technique:
- Name: Service Execution
- ID: T1035
- Reference URL: https://attack.mitre.org/techniques/T1035/
Rule version history
edit- Version 2 (7.7.0 release)
-
Updated query, changed from:
process.name:PsExec.exe and event.action:"Network connection detected (rule: NetworkConnect)"