# DCSync Attack Detection Hunt Template ## Hunt Metadata | Field | Value | |-------|-------| | Hunt ID | TH-DCSYNC-YYYY-MM-DD-NNN | | Analyst | | | Date | | | Status | [ ] In Progress / [ ] Complete | ## Hypothesis > An adversary with elevated AD privileges is performing DCSync to extract password hashes from Active Directory by replicating directory data from a non-domain-controller machine. ## Pre-Hunt Checklist - [ ] Event ID 4662 audit policy enabled on all DCs - [ ] SACL configured on domain root object - [ ] Domain controller inventory documented - [ ] Known service accounts with replication rights documented - [ ] Azure AD Connect accounts identified (if hybrid) ## DCSync Detection Findings | # | Timestamp | Subject Account | Source Machine | Target DC | Replication Rights | Severity | |---|-----------|-----------------|----------------|-----------|-------------------|----------| | 1 | | | | | | | ## Accounts with Replication Rights Audit | Account | Type | Rights | Legitimate | Justification | |---------|------|--------|-----------|---------------| | | User/Service/Computer | Get-Changes / Get-Changes-All | Yes/No | | ## Post-DCSync Impact Assessment | Check | Status | Notes | |-------|--------|-------| | KRBTGT hash potentially compromised | | | | Domain Admin hashes extracted | | | | Service account credentials at risk | | | | Golden Ticket creation possible | | | ## Response Actions 1. **Disable**: [Compromised accounts] 2. **Reset**: [KRBTGT password -- twice, 12 hours apart] 3. **Revoke**: [Unauthorized replication rights] 4. **Investigate**: [Source machine forensics] 5. **Monitor**: [Subsequent credential abuse attempts]