A machine certificate was issued with a mismatch

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-04
Category
Analytics Alert Reference
Order
Alert name

Synopsis

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
  • Requires:
    • eXtended Threat Hunting (XTH)

Detection Modules

Identity 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.