Data Source: Windows Event Log Security 4781

Date: 2026-05-13

ID: 9732ffe7-ebce-4557-865c-1725a0f633cb

Author: Patrick Bareiss, Splunk

Description

Logs changes made to the name of a computer account, including the old and new names and the user performing the action.

Details

Property	Value
Source	`XmlWinEventLog:Security`
Sourcetype	`XmlWinEventLog`
Separator	EventCode

Name ▲▼	Technique ▲▼	Type ▲▼
Windows Builtin Account Name Was Changed	Masquerade Account Name, Local Accounts	TTP
Suspicious Computer Account Name Change	Domain Accounts	TTP
Suspicious Ticket Granting Ticket Request	Domain Accounts	Hunting

Supported Apps

Splunk Add-on for Microsoft Windows (version 11.0.2)

Event Fields

+ Fields

  <span class="pill kill-chain">_time</span>
  
  <span class="pill kill-chain">ActivityID</span>
  
  <span class="pill kill-chain">Caller_Domain</span>
  
  <span class="pill kill-chain">Caller_User_Name</span>
  
  <span class="pill kill-chain">CategoryString</span>
  
  <span class="pill kill-chain">Channel</span>
  
  <span class="pill kill-chain">Computer</span>
  
  <span class="pill kill-chain">Error_Code</span>
  
  <span class="pill kill-chain">EventCode</span>
  
  <span class="pill kill-chain">EventData_Xml</span>
  
  <span class="pill kill-chain">EventID</span>
  
  <span class="pill kill-chain">EventRecordID</span>
  
  <span class="pill kill-chain">Guid</span>
  
  <span class="pill kill-chain">Keywords</span>
  
  <span class="pill kill-chain">Level</span>
  
  <span class="pill kill-chain">Logon_ID</span>
  
  <span class="pill kill-chain">Name</span>
  
  <span class="pill kill-chain">NewTargetUserName</span>
  
  <span class="pill kill-chain">OldTargetUserName</span>
  
  <span class="pill kill-chain">Opcode</span>
  
  <span class="pill kill-chain">PrivilegeList</span>
  
  <span class="pill kill-chain">ProcessID</span>
  
  <span class="pill kill-chain">RecordNumber</span>
  
  <span class="pill kill-chain">SubjectDomainName</span>
  
  <span class="pill kill-chain">SubjectLogonId</span>
  
  <span class="pill kill-chain">SubjectUserName</span>
  
  <span class="pill kill-chain">SubjectUserSid</span>
  
  <span class="pill kill-chain">SystemTime</span>
  
  <span class="pill kill-chain">System_Props_Xml</span>
  
  <span class="pill kill-chain">TargetDomainName</span>
  
  <span class="pill kill-chain">TargetSid</span>
  
  <span class="pill kill-chain">Target_Domain</span>
  
  <span class="pill kill-chain">Task</span>
  
  <span class="pill kill-chain">ThreadID</span>
  
  <span class="pill kill-chain">Version</span>
  
  <span class="pill kill-chain">action</span>
  
  <span class="pill kill-chain">app</span>
  
  <span class="pill kill-chain">change_type</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">dest_nt_domain</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">eventtype</span>
  
  <span class="pill kill-chain">host</span>
  
  <span class="pill kill-chain">id</span>
  
  <span class="pill kill-chain">index</span>
  
  <span class="pill kill-chain">linecount</span>
  
  <span class="pill kill-chain">name</span>
  
  <span class="pill kill-chain">object</span>
  
  <span class="pill kill-chain">object_attrs</span>
  
  <span class="pill kill-chain">object_category</span>
  
  <span class="pill kill-chain">object_id</span>
  
  <span class="pill kill-chain">product</span>
  
  <span class="pill kill-chain">punct</span>
  
  <span class="pill kill-chain">result</span>
  
  <span class="pill kill-chain">session_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">src_nt_domain</span>
  
  <span class="pill kill-chain">src_user</span>
  
  <span class="pill kill-chain">src_user_name</span>
  
  <span class="pill kill-chain">status</span>
  
  <span class="pill kill-chain">subject</span>
  
  <span class="pill kill-chain">ta_windows_action</span>
  
  <span class="pill kill-chain">ta_windows_security_CategoryString</span>
  
  <span class="pill kill-chain">tag</span>
  
  <span class="pill kill-chain">tag::eventtype</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_name</span>
  
  <span class="pill kill-chain">vendor</span>
  
  <span class="pill kill-chain">vendor_product</span>
  
</div>

Example Log

1<Event xmlns='http://schemas.microsoft.com/win/2004/08/events/event'><System><Provider Name='Microsoft-Windows-Security-Auditing' Guid='{54849625-5478-4994-a5ba-3e3b0328c30d}'/><EventID>4781</EventID><Version>0</Version><Level>0</Level><Task>13824</Task><Opcode>0</Opcode><Keywords>0x8020000000000000</Keywords><TimeCreated SystemTime='2024-04-09T22:22:45.521723900Z'/><EventRecordID>148763</EventRecordID><Correlation ActivityID='{b05ffbda-8ac8-0003-e6fb-5fb0c88ada01}'/><Execution ProcessID='620' ThreadID='3936'/><Channel>Security</Channel><Computer>ar-win-dc.attackrange.local</Computer><Security/></System><EventData><Data Name='OldTargetUserName'>AR-WIN-2$</Data><Data Name='NewTargetUserName'>Administrator</Data><Data Name='TargetDomainName'>ATTACKRANGE</Data><Data Name='TargetSid'>ATTACKRANGE\AR-WIN-2$</Data><Data Name='SubjectUserSid'>ATTACKRANGE\Administrator</Data><Data Name='SubjectUserName'>Administrator</Data><Data Name='SubjectDomainName'>ATTACKRANGE</Data><Data Name='SubjectLogonId'>0x141a04</Data><Data Name='PrivilegeList'>-</Data></EventData></Event>

Required Output Fields

dest

Source: GitHub | Version: 4