PUA - CSExec Default Named Pipe

Title: PUA - CSExec Default Named Pipe
Status: test
Description:Detects default CSExec pipe creation
References:
  -https://drive.google.com/file/d/1lKya3_mLnR3UQuCoiYruO3qgu052_iS_/view
  -https://github.com/malcomvetter/CSExec
Author: Nikita Nazarov, oscd.community, Nasreddine Bencherchali (Nextron Systems)
Date: 2023-08-07
modified:2023-11-30
Tags:

• -'attack.lateral-movement'
• -'attack.t1021.002'
• -'attack.execution'
• -'attack.t1569.002'

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:
    PipeName|contains: '\csexecsvc'
  condition:selection
Falsepositives:
  -Legitimate Administrator activity
Level: medium