Techniques › T1003.006 › AN1632
AN1632 Analytic 1632
Windows · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detects unauthorized invocation of replication operations (DCSync) via Directory Replication Service (DRS), often executed by threat actors using Mimikatz or similar tools from non-DC endpoints.</p>
- Detects
- T1003.006 DCSync
- Part of
- DET0594 Detection of Unauthorized DCSync Operations via Replication API Abuse
Log sources and channels
Exactly as MITRE states them in x_mitre_log_source_references. Where a channel is vague, it is vague in the source; kevmap does not tidy it.
| Log source | Channel | Data component |
|---|---|---|
| WinEventLog:Security | EventCode=4662 | DC0071 Active Directory Object Access |
| WinEventLog:Security | EventCode=4929 | DC0068 Active Directory Object Deletion |
| NSM:Content | Traffic on RPC DRSUAPI | DC0085 Network Traffic Content |
Mutable elements
Parameters MITRE marks as environment-specific. These are the knobs you are expected to tune; they are why an analytic is not a rule.
| Field | Description |
|---|---|
TimeWindow | Defines the correlation window for unusual account access followed by DRSUAPI traffic. |
UserContext | Allows tuning for specific accounts known to legitimately request replication. |
SourceIP | Expected replication should only come from known DCs; this field allows excluding trusted DCs. |