Suspicious WMI Event Consumer Created Named Pipe (via pipe_created)

This rule detects the WMI Event Consumer service scrcons.exe creating a named pipe

SigmamediumWindowsv1
sigma
title: Suspicious WMI Event Consumer Created Named Pipe (via pipe_created)
id: 28c75210-2554-504d-b60f-a8cf7cf60b36
status: stable
description: This rule detects the WMI Event Consumer service scrcons.exe creating a named pipe
references:
    - https://attack.mitre.org/techniques/T1047/
    - https://github.com/RiccardoAncarani/LiquidSnake
author: Huntrule Team
date: 2026-07-15
tags:
    - attack.t1047
    - attack.execution
logsource:
    product: windows
    category: pipe_created
    definition: 'Note that you have to configure logging for Named Pipe Events in Sysmon config (Event ID 17 and Event ID 18). The basic configuration is in popular sysmon configuration (https://github.com/SwiftOnSecurity/sysmon-config), but it is worth verifying. You can also use other repo, e.g. https://github.com/Neo23x0/sysmon-config, https://github.com/olafhartong/sysmon-modular. How to test detection? You can check powershell script from this site https://svch0st.medium.com/guide-to-named-pipes-and-hunting-for-cobalt-strike-pipes-dc46b2c5f575'
detection:
    selection:
        Image|endswith: '\scrcons.exe'
    condition: selection
falsepositives:
    - Unknown
level: medium

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.