Privilege Escalation via Named Pipe Impersonation

Identifies a privilege escalation attempt via named pipe impersonation. An adversary may abuse this technique by utilizing a framework such Metasploit’s meterpreter getsystem command.

Rule type: eql

Rule indices:

winlogbeat-*
logs-endpoint.events.*
logs-windows.*

Severity: high

Risk score: 73

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

https://www.ired.team/offensive-security/privilege-escalation/windows-namedpipes-privilege-escalation

Tags:

Elastic
Host
Windows
Threat Detection
Privilege Escalation

Version: 102

Rule authors:

Elastic

Rule license: Elastic License v2

Investigation guide

edit

Rule query

edit

process where event.type == "start" and
 process.pe.original_file_name in ("Cmd.Exe", "PowerShell.EXE") and
 process.args : "echo" and process.args : ">" and process.args : "\\\\.\\pipe\\*"

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Privilege Escalation
- ID: TA0004
- Reference URL: https://attack.mitre.org/tactics/TA0004/
Technique:
- Name: Access Token Manipulation
- ID: T1134
- Reference URL: https://attack.mitre.org/techniques/T1134/

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