Analytics BIOC Informational

Deletion of AD CS certificate database entries

A user has deleted rows from the certificate database of an AD CS server.

Module:
Identity Analytics
Data source:
Windows Event Collector, XDR Agent with eXtended Threat Hunting (XTH)
ATT&CK tactics: Defense Evasion (TA0005)
ATT&CK techniques: Indicator Removal (T1070)
Detector tags: Active Directory Certificate Services Analytics
Attacker's goals:

An attacker is attempting to cover their tracks after issuing certificates.

Investigative actions:

Check the user account deleting the certificate database entries and verify its activity.* Review AD CS logs to identify any unauthorized certificate issuances, modifications, or template changes.* Examine recent activity from the user account, including logon patterns and privilege changes.

Test period:
N/A (single event)
Deduplication:
1 Day
1 variation:
  • Abnormal deletion of AD CS certificate database entries Low (parent: Informational)