Azure Global Administrator Role Addition to PIM Useredit

Identifies an Azure Active Directory (AD) Global Administrator role addition to a Privileged Identity Management (PIM) user account. PIM is a service that enables you to manage, control, and monitor access to important resources in an organization. Users who are assigned to the Global administrator role can read and modify any administrative setting in your Azure AD organization.

Rule type: query

Rule indices:

  • filebeat-*
  • logs-azure*

Severity: high

Risk score: 73

Runs every: 5 minutes

Searches indices from: now-6m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Elastic
  • Cloud
  • Azure
  • Continuous Monitoring
  • SecOps
  • Identity and Access

Version: 5 (version history)

Added (Elastic Stack release): 7.10.0

Last modified (Elastic Stack release): 7.13.0

Rule authors: Elastic

Rule license: Elastic License v2

Potential false positivesedit

Global administrator additions may be done by a system or network administrator. Verify whether the username, hostname, and/or resource name should be making changes in your environment. Global administrator additions from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.

Investigation guideedit

Config

The Azure Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.

Rule queryedit

event.dataset:azure.auditlogs and
azure.auditlogs.properties.category:RoleManagement and
azure.auditlogs.operation_name:("Add eligible member to role in PIM
completed (permanent)" or "Add member to role in PIM completed
(timebound)") and
azure.auditlogs.properties.target_resources.*.display_name:"Global
Administrator" and event.outcome:(Success or success)

Threat mappingedit

Framework: MITRE ATT&CKTM

Rule version historyedit

Version 5 (7.13.0 release)
  • Formatting only
Version 4 (7.12.0 release)
  • Formatting only
Version 3 (7.11.2 release)
  • Formatting only
Version 2 (7.11.0 release)
  • Updated query, changed from:

    event.dataset:azure.auditlogs and
    azure.auditlogs.properties.category:RoleManagement and
    azure.auditlogs.operation_name:("Add eligible member to role in PIM
    completed (permanent)" or "Add member to role in PIM completed
    (timebound)") and
    azure.auditlogs.properties.target_resources.*.display_name:"Global
    Administrator" and event.outcome:Success