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A machine certificate was issued with a mismatch

Synopsis

Field
Value

Activation Period

14 Days

Training Period

30 Days

Test Period

N/A (single event)

Deduplication Period

1 Day

Required Data

Requires one of the following data sources: Windows Event Collector OR XDR Agent with eXtended Threat Hunting (XTH)

Detection Modules

Identity Analytics

Detector Tags

Active Directory Certificate Services Analytics

ATT&CK Tactic

Privilege Escalation (TA0004)

ATT&CK Technique

Valid Accounts: Domain Accounts (T1078.002)

Severity

Medium

Description

A machine certificate was issued with a mismatch between the requester and the subject.

Attacker's Goals

An attacker may attempt to exploit the Active Directory Certificate Services to escalate privileges to a domain controller machine account.

Investigative actions

  • Check who owns the certificate requester account.

  • Check if the requester DNS name attribute was changed recently.

  • Investigate actions done by the requester and its owner.

  • Check for possible DCSync alerts.

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