LoFP / a new role may be assigned to a management group by a system or network administrator. verify that the configuration change was expected. exceptions can be added to this rule to filter expected behavior.

Techniques

• T1098

Sample rules

M365 Exchange Management Group Role Assigned

• source: elastic
• technicques:
  • T1098

Description

Identifies when a new role is assigned to a management group in Microsoft 365. An adversary may attempt to add a role in order to maintain persistence in an environment.

Detection logic

event.dataset:o365.audit and event.provider:Exchange and event.category:web and event.action:"New-ManagementRoleAssignment" and event.outcome:success