Data Source: Sysmon EventID 18

Created: 2024-05-22

Last Updated: 2026-10-14

ID: 37eb3554-214e-4e66-af10-c3ffc5b8ca82

Author: Patrick Bareiss, Splunk

Description

Logs the connection to a named pipe, including details about the pipe name, source and destination processes, and communication direction.

Details

Property	Value
Source	`XmlWinEventLog:Microsoft-Windows-Sysmon/Operational`
Sourcetype	`XmlWinEventLog`
Separator	EventID

Name ▲▼	Technique ▲▼	Type ▲▼
Windows Application Layer Protocol RMS Radmin Tool Namedpipe	Application Layer Protocol	TTP
Windows Anonymous Pipe Activity	Inter-Process Communication	Hunting
Windows Suspicious C2 Named Pipe	SMB/Windows Admin Shares, Process Injection, Inter-Process Communication	TTP
Windows App Layer Protocol Qakbot NamedPipe	Application Layer Protocol	Anomaly
Trickbot Named Pipe	Process Injection	TTP
Windows RMM Named Pipe	SMB/Windows Admin Shares, Process Injection, Inter-Process Communication	Anomaly
Windows Suspicious Named Pipe	SMB/Windows Admin Shares, Process Injection, Inter-Process Communication	TTP
Windows App Layer Protocol Wermgr Connect To NamedPipe	Application Layer Protocol	Anomaly
Windows PUA Named Pipe	SMB/Windows Admin Shares, Process Injection, Inter-Process Communication	Anomaly

Supported Apps

Splunk Add-on for Sysmon (version 5.0.1)

Event Fields

+ Fields

  <span class="pill kill-chain">_time</span>
  
  <span class="pill kill-chain">action</span>
  
  <span class="pill kill-chain">Channel</span>
  
  <span class="pill kill-chain">Computer</span>
  
  <span class="pill kill-chain">date_hour</span>
  
  <span class="pill kill-chain">date_mday</span>
  
  <span class="pill kill-chain">date_minute</span>
  
  <span class="pill kill-chain">date_month</span>
  
  <span class="pill kill-chain">date_second</span>
  
  <span class="pill kill-chain">date_wday</span>
  
  <span class="pill kill-chain">date_year</span>
  
  <span class="pill kill-chain">date_zone</span>
  
  <span class="pill kill-chain">dest</span>
  
  <span class="pill kill-chain">dvc</span>
  
  <span class="pill kill-chain">dvc_nt_host</span>
  
  <span class="pill kill-chain">event_id</span>
  
  <span class="pill kill-chain">EventChannel</span>
  
  <span class="pill kill-chain">EventCode</span>
  
  <span class="pill kill-chain">EventData_Xml</span>
  
  <span class="pill kill-chain">EventDescription</span>
  
  <span class="pill kill-chain">EventID</span>
  
  <span class="pill kill-chain">EventRecordID</span>
  
  <span class="pill kill-chain">EventType</span>
  
  <span class="pill kill-chain">eventtype</span>
  
  <span class="pill kill-chain">Guid</span>
  
  <span class="pill kill-chain">host</span>
  
  <span class="pill kill-chain">id</span>
  
  <span class="pill kill-chain">Image</span>
  
  <span class="pill kill-chain">index</span>
  
  <span class="pill kill-chain">Keywords</span>
  
  <span class="pill kill-chain">Level</span>
  
  <span class="pill kill-chain">linecount</span>
  
  <span class="pill kill-chain">Name</span>
  
  <span class="pill kill-chain">Opcode</span>
  
  <span class="pill kill-chain">os</span>
  
  <span class="pill kill-chain">pipe_name</span>
  
  <span class="pill kill-chain">PipeName</span>
  
  <span class="pill kill-chain">process_exec</span>
  
  <span class="pill kill-chain">process_guid</span>
  
  <span class="pill kill-chain">process_id</span>
  
  <span class="pill kill-chain">process_name</span>
  
  <span class="pill kill-chain">process_path</span>
  
  <span class="pill kill-chain">ProcessGuid</span>
  
  <span class="pill kill-chain">ProcessID</span>
  
  <span class="pill kill-chain">ProcessId</span>
  
  <span class="pill kill-chain">punct</span>
  
  <span class="pill kill-chain">RecordID</span>
  
  <span class="pill kill-chain">RecordNumber</span>
  
  <span class="pill kill-chain">RuleName</span>
  
  <span class="pill kill-chain">SecurityID</span>
  
  <span class="pill kill-chain">severity</span>
  
  <span class="pill kill-chain">severity_id</span>
  
  <span class="pill kill-chain">signature</span>
  
  <span class="pill kill-chain">signature_id</span>
  
  <span class="pill kill-chain">source</span>
  
  <span class="pill kill-chain">sourcetype</span>
  
  <span class="pill kill-chain">splunk_server</span>
  
  <span class="pill kill-chain">System_Props_Xml</span>
  
  <span class="pill kill-chain">SystemTime</span>
  
  <span class="pill kill-chain">tag</span>
  
  <span class="pill kill-chain">tag::eventtype</span>
  
  <span class="pill kill-chain">Task</span>
  
  <span class="pill kill-chain">ThreadID</span>
  
  <span class="pill kill-chain">TimeCreated</span>
  
  <span class="pill kill-chain">timeendpos</span>
  
  <span class="pill kill-chain">timestartpos</span>
  
  <span class="pill kill-chain">User</span>
  
  <span class="pill kill-chain">user</span>
  
  <span class="pill kill-chain">user_id</span>
  
  <span class="pill kill-chain">UserID</span>
  
  <span class="pill kill-chain">UtcTime</span>
  
  <span class="pill kill-chain">vendor_product</span>
  
  <span class="pill kill-chain">Version</span>
  
</div>

Example Log

1<Event xmlns='http://schemas.microsoft.com/win/2004/08/events/event'><System><Provider Name='Microsoft-Windows-Sysmon' Guid='{5770385F-C22A-43E0-BF4C-06F5698FFBD9}'/><EventID>18</EventID><Version>1</Version><Level>4</Level><Task>18</Task><Opcode>0</Opcode><Keywords>0x8000000000000000</Keywords><TimeCreated SystemTime='2025-02-11T09:49:08.450028700Z'/><EventRecordID>1090401</EventRecordID><Correlation/><Execution ProcessID='2408' ThreadID='2904'/><Channel>Microsoft-Windows-Sysmon/Operational</Channel><Computer>ar-win-dc.attackrange.local</Computer><Security UserID='S-1-5-18'/></System><EventData><Data Name='RuleName'>-</Data><Data Name='EventType'>ConnectPipe</Data><Data Name='UtcTime'>2025-02-11 09:49:08.448</Data><Data Name='ProcessGuid'>{A9E392D4-1CF5-67AB-7902-00000000CD03}</Data><Data Name='ProcessId'>2336</Data><Data Name='PipeName'>&lt;Anonymous Pipe&gt;</Data><Data Name='Image'>C:\Users\Public\mspaint.exe</Data><Data Name='User'>ATTACKRANGE\Administrator</Data></EventData></Event>

Required Output Fields

dest
dvc
pipe_name
process_exec
process_guid
process_id
process_name
process_path
signature
signature_id
user_id
vendor_product

Source: GitHub | Version: 5