Suspicious Computer Account Password Reset via net user by UNC1549

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 the net command resetting the password of a machine account whose name ends with a dollar sign as observed in UNC1549 intrusions. Attackers reset computer account credentials to enable silver ticket abuse or DCSync style credential theft against domain controllers.

Reporting behind it

Related detections9 linkedT1003.006 — drag to rearrange

Malicious DCSync Domain Replication Credential Theft (via process_creation)

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

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

Suspicious Computer Account Password Reset via net user by UNC1549

Pivot detection · T1003.006 · 9 related

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