Modification of the msPKIAccountCredentialsedit

Identify the modification of the msPKIAccountCredentials attribute in an Active Directory User Object. Attackers can abuse the credentials roaming feature to overwrite an arbitrary file for privilege escalation. ms-PKI-AccountCredentials contains binary large objects (BLOBs) of encrypted credential objects from the credential manager store, private keys, certificates, and certificate requests.

Rule type: query

Rule indices:

  • winlogbeat-*
  • logs-system.*

Severity: medium

Risk score: 47

Runs every: 5 minutes

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100



  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Active Directory
  • Privilege Escalation

Version: 1

Added (Elastic Stack release): 8.6.0

Rule authors: Elastic

Rule license: Elastic License v2

Investigation guideedit

Rule queryedit

event.action:"Directory Service Changes" and event.code:"5136" and
and winlog.event_data.OperationType:"%%14674" and not
winlog.event_data.SubjectUserSid : "S-1-5-18"

Threat mappingedit