User Added to Privileged Group in Active Directory

Elastic Stack Serverless Security

Identifies a user being added to a privileged group in Active Directory. Privileged accounts and groups in Active Directory are those to which powerful rights, privileges, and permissions are granted that allow them to perform nearly any action in Active Directory and on domain-joined systems.

Rule type: eql

Rule indices:

winlogbeat-*
logs-windows.*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-9m (https://www.elastic.co/guide/en/elasticsearch/reference/current/common-options.html#date-math[Date Math format], see also Additional look-back time)

Maximum alerts per execution: 100

References:

https://docs.microsoft.com/en-us/windows-server/identity/ad-ds/plan/security-best-practices/appendix-b—privileged-accounts-and-groups-in-active-directory

Tags:

Elastic
Host
Windows
Threat Detection
Persistence

Version: 3

Rule authors:

Elastic
Skoetting

Rule license: Elastic License v2

Rule query

		iam where event.action == "added-member-to-group" and
  group.name : ("Admin*",
                "Local Administrators",
                "Domain Admins",
                "Enterprise Admins",
                "Backup Admins",
                "Schema Admins",
                "DnsAdmins",
                "Exchange Organization Administrators")

	

Framework: MITRE ATT&CKTM

Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
Technique:
- Name: Account Manipulation
- ID: T1098
- Reference URL: https://attack.mitre.org/techniques/T1098/