Malicious DCSync Domain Replication Credential Theft (via process_creation)

ATT&CK techniques

Cred Access

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1003.006DCSync
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects command lines invoking DCSync-style directory replication (lsadump::dcsync or a /dcsync switch), which abuses replication rights to pull password hashes for any account directly from a domain controller. DCSync is a high-impact credential-access technique in the Red Canary Threat Detection Report and a route to domain dominance. Detecting the replication request surfaces theft of privileged credentials without touching LSASS.

Reporting behind it

Related detections9 linkedT1003.006 — drag to rearrange

Malicious Exchange Group Membership Change to Perform DCsync Attack (via security)

Suspicious Computer Account Password Reset via net user by UNC1549

Malicious Active Directory Replication Request Indicating DCSync

Malicious Replication Privileges Accessed to Perform DCSync Attack (via security)

Windows PowerShell: DSInternals Get-ADReplAccount Enumeration

Windows Process Creation: Detect Mimikatz Tool and Module Command-Line Usage

Windows Security: AD object replication attempted by non-machine account (Event ID 4662)

Windows System Service Execution of Credential Dumping Tools (Service Control Manager Event 7045)

Windows Security EID 4697 Service Execution of Credential Dumping Tools

Malicious DCSync Domain Replication Credential Theft (via process_creation)

Pivot detection · T1003.006 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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