A directory service object was modified

// EVENT DEFINITION:

An Active Directory object attribute (`LDAP Display Name`, `Value`) was modified.

// DETAILED TELEMETRY & CONTEXT:

Event ID 5136 provides granular auditing of attribute modifications inside Active Directory (`LDAP Display Name` changed, `Operation Type: Value Added / Value Deleted`). It tracks sensitive changes such as adding `servicePrincipalName`, modifying `userAccountControl`, altering `msDS-AllowedToDelegateTo` (Kerberos delegation), or changing `sIDHistory` (`SID history injection`).

[ ! ]Failure Reason / Root Cause Analysis

Administrative AD management, or attacker injecting `sIDHistory` / configuring RBCD (`Resource-Based Constrained Delegation`) for domain privilege escalation.

Operational Metadata & Applicability

Log Category:Directory Service Access

Audit Type Classification:Success Audit

Supported Operating Systems:Windows Server 2016, 2019, 2022 / Windows Client 10, 11 (Enterprise / Pro)

Threat Hunting Keywords:

5136ldap display namesidhistoryrbcdattribute modifiedactive directory change

MITRE ATT&CK Framework Alignment

T1098.005

Account Manipulation: SID-History InjectionTactic: Persistence

T1552

Unsecured CredentialsTactic: Credential Access

Mitigation Playbook & Recommended SOC Actions

•Monitor Event 5136 where `LDAP Display Name` equals `sIDHistory` (`detect SID History injection persistence`).
•Audit any additions (`Value Added`) to `msDS-AllowedToActOnBehalfOfOtherIdentity` (`RBCD takeover attacks`).

Representative Windows Event XML Schema

<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>5136</EventID>
    <Version>0</Version>
    <Level>0</Level>
    <Task>12544</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8020000000000000</Keywords>
    <TimeCreated SystemTime="2026-07-17T09:54:44.350Z" />
    <EventRecordID>1048576</EventRecordID>
    <Correlation />
    <Execution ProcessID="612" ThreadID="1024" />
    <Channel>Security</Channel>
    <Computer>DC01.enterprise.internal</Computer>
    <Security />
  </System>
  <EventData>
    <Data Name="SubjectUserSid">S-1-5-18</Data>
    <Data Name="SubjectUserName">SYSTEM</Data>
    <Data Name="SubjectDomainName">NT AUTHORITY</Data>
    <Data Name="SubjectLogonId">0x3e7</Data>
    <!-- Event telemetry fields specific to A directory service object was modified -->
  </EventData>
</Event>

Correlated / Related Security Event IDs

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