DET0594: Detection of Unauthorized DCSync Operations via Replication API Abuse
MITRE ATT&CK DET0594: Detection of Unauthorized DCSync Operations via Replication API Abuse Detection Strategy details, with detection guidance, relationships and…
Security context for executives and security teams
DET0594 is about detecting unauthorized DCSync-style activity: abuse of Windows domain controller replication APIs to access credentials or sensitive directory information. For leaders, this matters because successful abuse can undermine Active Directory trust and force high-confidence incident response decisions around privileged accounts, credential exposure, and domain recovery.
Executive priority
Treat this as a high-value identity security detection area. Even though the detection strategy object has no official description or detection logic, its relationship to ATT&CK technique T1003.006 DCSync places it in credential access against Windows domain environments. Executives should ask whether the organization can prove who is allowed to perform directory replication, whether SOC teams can distinguish expected replication from suspicious API abuse, and whether IR plans cover privileged credential compromise scenarios.
Technical view
The object detects T1003.006 DCSync, a credential-access technique involving abuse of a Windows domain controller replication API to simulate replication from a remote domain controller. SOC and detection engineering teams should validate visibility into replication-related activity, privileged directory access, and the identity and host context of accounts performing replication-like operations. Because the ATT&CK object provides no official detection text, local baselining and environment-specific allowlists are essential.
Likely telemetry
- Windows Active Directory domain controller security and directory service logs
- Replication-related API or directory access events where available
- Authentication and logon records for privileged accounts and domain controller computer accounts
- Group membership and privilege-change records for Administrators, Domain Admins, Enterprise Admins, and other replication-capable principals
- Network or host telemetry showing replication-like activity involving domain controllers and unexpected systems
Detection direction
- Validate that detections identify replication API use by unexpected accounts or systems, especially activity inconsistent with normal domain controller replication patterns.
- Tune carefully around legitimate domain controllers, administrative groups, and authorized replication-capable accounts to reduce false positives while preserving visibility into abnormal use.
- Correlate replication-related activity with recent privilege changes, unusual authentication, or access from non-standard hosts.
- Confirm whether detection coverage depends on domain controller logging configuration, centralized log collection, and retention sufficient for incident response.
- Document blind spots where the organization lacks visibility into directory service activity, privileged account use, or domain controller telemetry.
Mitigation priorities
- Inventory and tightly govern accounts and groups with privileges that can perform replication-sensitive directory access.
- Apply least privilege to administrative groups and review membership changes as high-risk identity events.
- Maintain incident response procedures for suspected domain credential exposure, including privileged account containment and recovery decision points.
- Ensure domain controller and identity telemetry is collected, retained, and available to SOC and IR teams as compliance and incident evidence.
- Use periodic control validation to confirm that authorized replication activity is understood and unauthorized patterns would generate reviewable alerts.
Additional notes and limits
This take is based on a sparse ATT&CK detection strategy object with no official description, no official detection text, no tactics listed on the strategy itself, and no platform specified on the strategy itself. The practical interpretation comes from the explicit relationship that DET0594 detects T1003.006 DCSync, which is an enterprise ATT&CK credential-access technique associated with Windows.
No vendor-specific analytics, event IDs, thresholds, prevalence, attribution, or active exploitation claims are supported by the supplied fields. Local Active Directory architecture, logging configuration, privileged access model, and replication design are required to determine actual detection coverage and tuning.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Detection of Unauthorized DCSync Operations via Replication API Abuse
No official description is available in the imported ATT&CK source object.
How security teams should use this page
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Techniques used
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Object version and sync metadata
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Imported snapshots across ATT&CK releases(1)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 19.1 | 1.0 | Current bundle | 6bde356ed84a… |
Mirrored ATT&CK source object
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External references and citations
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- [1]mitre-attackDET0594Open source URL
- [2]mitre-attackDET0594Open source URL
- [3]mitre-attackDET0594Open source URL
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