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Windows event log ยท Security4688 A new process has been created

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

Fields EvtxECmd extracts

7 columns in the EvtxECmd CSV

  • UserName%domain%\%user%
    • %domain% = /Event/EventData/Data[@Name="SubjectDomainName"]
    • %user% = /Event/EventData/Data[@Name="SubjectUserName"]
  • PayloadData1Parent process: %ParentProcessName%
    • %ParentProcessName% = /Event/EventData/Data[@Name="ParentProcessName"]
  • PayloadData2PID: %ProcessId%
    • %ProcessId% = /Event/EventData/Data[@Name="NewProcessId"]
  • PayloadData3Parent PID: %ProcessId%
    • %ProcessId% = /Event/EventData/Data[@Name="ProcessId"]
  • PayloadData4Mandatory label: %MandatoryLabel%
    • %MandatoryLabel% = /Event/EventData/Data[@Name="MandatoryLabel"]
  • PayloadData5Target User: %targetDomain%\%targetUser%
    • %targetDomain% = /Event/EventData/Data[@Name="TargetDomainName"]
    • %targetUser% = /Event/EventData/Data[@Name="TargetUserName"]
  • ExecutableInfo%NewProcessName% %CommandLine%
    • %NewProcessName% = /Event/EventData/Data[@Name="NewProcessName"]
    • %CommandLine% = /Event/EventData/Data[@Name="CommandLine"]

Value lookups

Codes that EvtxECmd turns into text

MandatoryLabel

S-1-16-0
SECURITY_MANDATORY_UNTRUSTED_RID
S-1-16-4096
SECURITY_MANDATORY_LOW_RID
S-1-16-8192
SECURITY_MANDATORY_MEDIUM_RID
S-1-16-8448
SECURITY_MANDATORY_MEDIUM_PLUS_RID
S-1-16-12288
SECURITY_MANDATORY_HIGH_RID
S-1-16-16384
SECURITY_MANDATORY_SYSTEM_RID
S-1-16-20480
SECURITY_MANDATORY_PROTECTED_PROCESS_RID

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>4688</EventID>
    <Version>2</Version>
    <Level>0</Level>
    <Task>13312</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8020000000000000</Keywords>
    <TimeCreated SystemTime="2015-11-12T02:24:52.377352500Z"/>
    <EventRecordID>2814</EventRecordID>
    <Correlation/>
    <Execution ProcessID="4" ThreadID="400"/>
    <Channel>Security</Channel>
    <Computer>WIN-GG82ULGC9GO.contoso.local</Computer>
    <Security/>
  </System>
  <EventData>
    <Data Name="SubjectUserSid">S-1-5-18</Data>
    <Data Name="SubjectUserName">WIN-GG82ULGC9GO$</Data>
    <Data Name="SubjectDomainName">CONTOSO</Data>
    <Data Name="SubjectLogonId">0x3e7</Data>
    <Data Name="NewProcessId">0x2bc</Data>
    <Data Name="NewProcessName">C:\\Windows\\System32\\rundll32.exe</Data>
    <Data Name="TokenElevationType">%%1938</Data>
    <Data Name="ProcessId">0xe74</Data>
    <Data Name="CommandLine"/>
    <Data Name="TargetUserSid">S-1-5-21-1377283216-344919071-3415362939-1104</Data>
    <Data Name="TargetUserName">dadmin</Data>
    <Data Name="TargetDomainName">CONTOSO</Data>
    <Data Name="TargetLogonId">0x4a5af0</Data>
    <Data Name="ParentProcessName">C:\\Windows\\explorer.exe</Data>
    <Data Name="MandatoryLabel">S-1-16-8192</Data>
  </EventData>
</Event>

References

5 links

Source: evtx/Maps/Security_Microsoft-Windows-Security-Auditing_4688.map(opens in new tab) by Eric Zimmerman and Andrew Rathbun and contributors(opens in new tab), MIT License(opens in new tab)