Rules Contributing to Impacket PsExec Execution Alert

The following rules detect suspicious SMB traffic related to Impacket PsExec execution. Any one or more of these will trigger the Impacket PsExec Execution Alert. Details for each rule can be viewed by clicking the More Details link in the description.

Title

Description

Impacket PsExec Execution

Detects execution of Impacket's psexec.py.

Rule ID

network_security_10

Query

{'selection_protocol': {'appid_name': 'smb'}, 'selection_sharename': {'metadata|contains': ['IPC$']}, 'selection_relative_target_name': {'metadata|contains': ['RemCom_stdin', 'RemCom_stdout', 'RemCom_stderr']}, 'condition': 'all of selection_*'}

Log Source

Stellar Cyber Network Events configured for:

  • Requirements: Network/Security/Modular sensor must be able to capture network traffic

Rule Source

Developed internally by Stellar Cyber

Tactics, Techniques, and Procedures

TA0008, T1021.002

References

N/A

Severity

75

Suppression Logic Based On

  • appid_name
  • srcip
  • dstip
  • dstip_host
  • stellar.rule_id

Additional Information

Maturity Creation Date Risk Level False Positives
experimental 2024/07/09 high

  • Unknown