WMI Event Consumer Created Named Pipe
Detects the WMI Event Consumer service scrcons.exe creating a named pipe
Convert In Phoenix Studio
Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.
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: selectionFalse positive likelihood has not been assessed. Additional context may be needed during triage.
Tactics