win:security 4904
An attempt was made to register a security event source.
- Log source
- Windows Security event log
- Host type
- Windows (workstation, member server, domain controller)
- How to enable
- Advanced Audit Policy: Policy Change > Audit Audit Policy Change
- Audit category
- Policy Change
- Audit subcategory
- Audit Audit Policy Change
- Tier, host type
- Recommended
- Techniques
- 0
- Rules depending on it
- Sigma 1
Why this tier
DISA STIG (server); DISA STIG (workstation); Microsoft audit baseline (dc); Microsoft audit baseline (server); Microsoft audit baseline (workstation)
By role
| Role | Tier | Basis |
|---|---|---|
| Windows workstation | Recommended | DISA STIG (workstation); Microsoft audit baseline (workstation) |
| Windows member server | Recommended | DISA STIG (server); Microsoft audit baseline (server) |
| Windows domain controller | Recommended | DISA STIG (server); Microsoft audit baseline (dc); Microsoft audit baseline (server) |
| Windows web server (IIS), internet-facing | Recommended | DISA STIG (server); Microsoft audit baseline (server) |
Techniques it helps detect
No ATT&CK analytic names this event. Its standing comes from the standards and rules below.
Rules that depend on it
Sigma 1
- VSSAudit Security Event Source Registration by Roberto Rodriguez @Cyb3rWard0g, Open Threat Research (OTR)
Standards and guidance naming it
| Requirement | Relation | Basis |
|---|---|---|
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows 11 V2R11 (2026-10-05) | Names this event | WN11-AU-000100 (workstation): Audit Audit Policy Change Success |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows Server 2022 V2R11 | Names this event | WN22-AU-000260 (server): Audit Audit Policy Change Success |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows Server 2022 V2R11 | Names this event | WN22-AU-000270 (server): Audit Audit Policy Change Failure |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows 10 V3R6 (2026-01-23) | Names this event | WN10-AU-000100 (workstation): Audit Audit Policy Change Success |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows Server 2019 V3R9 (2026-07-10) | Names this event | WN19-AU-000260 (server): Audit Audit Policy Change Success |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows Server 2019 V3R9 (2026-07-10) | Names this event | WN19-AU-000270 (server): Audit Audit Policy Change Failure |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows Server 2025 V1R1 (2026-02-27) | Names this event | WN25-AU-000260 (server): Audit Audit Policy Change Success |
| DISA STIG: Advanced audit policy requirementsMicrosoft Windows Server 2025 V1R1 (2026-02-27) | Names this event | WN25-AU-000270 (server): Audit Audit Policy Change Failure |
| Microsoft: Events to monitor with potential criticalityAppendix L: Events to Monitor (Windows Server AD DS best practices) | Names this event | potential criticality Low: An attempt was made to register a security event source. |