TA0005 · DEFENSE EVASION
Rogue Domain Controller
Adversaries may register a rogue Domain Controller to enable manipulation of Active Directory data. DCShadow may be used to create a rogue Domain Controller (DC).
Detect it with
Monitor and analyze network traffic associated with data replication (such as calls to DrsAddEntry, DrsReplicaAdd, and especially GetNCChanges) between DCs as well as to/from non DC hosts.
Why it matters on shift
Rogue Domain Controller is one of the concrete ways adversaries achieve defense evasion. Recognising it in telemetry lets you name the technique in your ticket and pivot to what came before and after.
What to look for next
After defense evasion, the next tactic is usually Credential Access. Search your telemetry for the transition before closing the ticket.
Kill-chain context