IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.
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Elastic Docs ›Elastic Security Solution [8.1] ›Detections and alerts ›Prebuilt rule reference

Microsoft 365 Global Administrator Role Assigned

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Microsoft 365 Global Administrator Role Assigned

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In Azure Active Directory (Azure AD), permissions to manage resources are assigned using Roles. The Global Administrator is a role that enables users to have access to all administrative features in Azure AD and services that use Azure Active Directory identities like the Microsoft 365 Defender portal, the Microsoft 365 compliance center, Exchange, SharePoint Online, and Skype for Business Online. Attackers can add users as Global Administrators to maintain access and manage all subscriptions and their settings and resources.

Rule type: query

Rule indices:

  • filebeat-*
  • logs-o365*

Severity: medium

Risk score: 47

Runs every: 5 minutes

Searches indices from: now-25m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Elastic
  • Cloud
  • Microsoft 365
  • Continuous Monitoring
  • SecOps
  • Identity and Access

Version: 1

Added (Elastic Stack release): 8.1.0

Rule authors: Elastic

Rule license: Elastic License v2

Investigation guide

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## Config

The Office 365 Logs Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.

Rule query

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event.dataset:o365.audit and event.code:"AzureActiveDirectory" and
event.action:"Add member to role." and
o365.audit.ModifiedProperties.Role_DisplayName.NewValue:"Global
Administrator"

Threat mapping

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Framework: MITRE ATT&CKTM

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