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Windows event log ยท Security4742 A computer account was changed

  • Security
  • 3 fields
  • Security.evtx
  • Microsoft-Windows-Security-Auditing

Fields EvtxECmd extracts

3 columns in the EvtxECmd CSV

  • UserName%domain%\%user%
    • %domain% = /Event/EventData/Data[@Name="SubjectDomainName"]
    • %user% = /Event/EventData/Data[@Name="SubjectUserName"]
  • PayloadData1Target: %TargetDomainName%\%TargetUserName%
    • %TargetDomainName% = /Event/EventData/Data[@Name="TargetDomainName"]
    • %TargetUserName% = /Event/EventData/Data[@Name="TargetUserName"]
  • PayloadData2Changed Attribute SamAccountName: %SamAccountName% DisplayName: %DisplayName% UserPrincipalName: %UserPrincipalName% HomeDirectory: %HomeDirectory% HomePath: %HomePath% ScriptPath: %ScriptPath% ProfilePath: %ProfilePath% UserWorkstations: %UserWorkstations% PasswordLastSet: %PasswordLastSet% AccountExpires: %AccountExpires% PrimaryGroupId: %PrimaryGroupId% AllowedToDelegateTo: %AllowedToDelegateTo% OldUacValue: %OldUacValue% NewUacValue: %NewUacValue% UserAccountControl: %UserAccountControl% UserParameters: %UserParameters% SidHistory: %SidHistory% LogonHours: %LogonHours% DnsHostName: %DnsHostName% ServicePrincipalNames: %ServicePrincipalNames%
    • %SamAccountName% = /Event/EventData/Data[@Name="SamAccountName"]
    • %DisplayName% = /Event/EventData/Data[@Name="DisplayName"]
    • %UserPrincipalName% = /Event/EventData/Data[@Name="UserPrincipalName"]
    • %HomeDirectory% = /Event/EventData/Data[@Name="HomeDirectory"]
    • %HomePath% = /Event/EventData/Data[@Name="HomePath"]
    • %ScriptPath% = /Event/EventData/Data[@Name="ScriptPath"]
    • %ProfilePath% = /Event/EventData/Data[@Name="ProfilePath"]
    • %UserWorkstations% = /Event/EventData/Data[@Name="UserWorkstations"]
    • %PasswordLastSet% = /Event/EventData/Data[@Name="PasswordLastSet"]
    • %AccountExpires% = /Event/EventData/Data[@Name="AccountExpires"]
    • %PrimaryGroupId% = /Event/EventData/Data[@Name="PrimaryGroupId"]
    • %AllowedToDelegateTo% = /Event/EventData/Data[@Name="AllowedToDelegateTo"]
    • %OldUacValue% = /Event/EventData/Data[@Name="OldUacValue"]
    • %NewUacValue% = /Event/EventData/Data[@Name="NewUacValue"]
    • %UserAccountControl% = /Event/EventData/Data[@Name="UserAccountControl"]
    • %UserParameters% = /Event/EventData/Data[@Name="UserParameters"]
    • %SidHistory% = /Event/EventData/Data[@Name="SidHistory"]
    • %LogonHours% = /Event/EventData/Data[@Name="LogonHours"]
    • %DnsHostName% = /Event/EventData/Data[@Name="DnsHostName"]
    • %ServicePrincipalNames% = /Event/EventData/Data[@Name="ServicePrincipalNames"]

Sample event

Event XML from the map file

<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>4742</EventID>
    <Version>0</Version>
    <Level>0</Level>
    <Task>13825</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8020000000000000</Keywords>
    <TimeCreated SystemTime="2015-08-14T02:35:01.252397000Z"/>
    <EventRecordID>171754</EventRecordID>
    <Correlation/>
    <Execution ProcessID="520" ThreadID="1108"/>
    <Channel>Security</Channel>
    <Computer>DC01.contoso.local</Computer>
    <Security/>
  </System>
  <EventData>
    <Data Name="ComputerAccountChange">-</Data>
    <Data Name="TargetUserName">WIN81$</Data>
    <Data Name="TargetDomainName">CONTOSO</Data>
    <Data Name="TargetSid">S-1-5-21-3457937927-2839227994-823803824-6116</Data>
    <Data Name="SubjectUserSid">S-1-5-21-3457937927-2839227994-823803824-1104</Data>
    <Data Name="SubjectUserName">dadmin</Data>
    <Data Name="SubjectDomainName">CONTOSO</Data>
    <Data Name="SubjectLogonId">0x2e80c</Data>
    <Data Name="PrivilegeList">-</Data>
    <Data Name="SamAccountName">-</Data>
    <Data Name="DisplayName">-</Data>
    <Data Name="UserPrincipalName">-</Data>
    <Data Name="HomeDirectory">-</Data>
    <Data Name="HomePath">-</Data>
    <Data Name="ScriptPath">-</Data>
    <Data Name="ProfilePath">-</Data>
    <Data Name="UserWorkstations">-</Data>
    <Data Name="PasswordLastSet">-</Data>
    <Data Name="AccountExpires">-</Data>
    <Data Name="PrimaryGroupId">-</Data>
    <Data Name="AllowedToDelegateTo">%%1793</Data>
    <Data Name="OldUacValue">0x80</Data>
    <Data Name="NewUacValue">0x2080</Data>
    <Data Name="UserAccountControl">%%2093</Data>
    <Data Name="UserParameters">-</Data>
    <Data Name="SidHistory">-</Data>
    <Data Name="LogonHours">-</Data>
    <Data Name="DnsHostName">-</Data>
    <Data Name="ServicePrincipalNames">-</Data>
  </EventData>
</Event>

References

3 links

Source: evtx/Maps/Security_Microsoft-Windows-Security-Auditing_4742.map(opens in new tab) by Mike Pilkington and contributors(opens in new tab), MIT License(opens in new tab)