win:security 4661
A handle to an object was requested.
- Log source
- Windows Security event log
- Host type
- Windows (workstation, member server, domain controller)
- How to enable
- Advanced Audit Policy: DS Access > Audit Directory Service Access
- Audit category
- DS Access
- Audit subcategory
- Audit Directory Service Access
- Tier, host type
- Minimum
- Techniques
- 1
- Rules depending on it
- Sigma 3
Why this tier
DISA STIG (dc); Microsoft audit baseline (dc)
By role
| Role | Tier | Basis |
|---|---|---|
| Windows domain controller | Minimum | DISA STIG (dc); Microsoft audit baseline (dc) |
Techniques it helps detect
Rules that depend on it
Sigma 3
- AD Privileged Users or Groups Reconnaissance by Samir Bousseaden
- Password Policy Enumerated by Zach Mathis
- Reconnaissance Activity by Florian Roth (Nextron Systems), Jack Croock (method), Jonhnathan Ribeiro (improvements), oscd.community
Standards and guidance naming it
| Requirement | Relation | Basis |
|---|---|---|
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows Server 2022 V2R11 | Names this event | WN22-DC-000240 (dc): Audit Directory Service Access Success |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows Server 2022 V2R11 | Names this event | WN22-DC-000250 (dc): Audit Directory Service Access Failure |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows Server 2019 V3R9 (2026-07-10) | Names this event | WN19-DC-000240 (dc): Audit Directory Service Access Success |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows Server 2019 V3R9 (2026-07-10) | Names this event | WN19-DC-000250 (dc): Audit Directory Service Access Failure |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows Server 2025 V1R1 (2026-02-27) | Names this event | WN25-DC-000240 (dc): Audit Directory Service Access Success |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows Server 2025 V1R1 (2026-02-27) | Names this event | WN25-DC-000250 (dc): Audit Directory Service Access Failure |
| Microsoft: Events to monitor with potential criticalityAppendix L: Events to Monitor (Windows Server AD DS best practices) | Names this event | potential criticality Low: A handle to an object was requested. |