Azure Domain Federation Settings Modified

 Original Source: [Sigma source]
Title: Azure Domain Federation Settings Modified
Status: test
Description:Identifies when an user or application modified the federation settings on the domain.
References:
  -https://learn.microsoft.com/en-us/azure/active-directory/hybrid/how-to-connect-monitor-federation-changes
Author: Austin Songer
Date: 2021-09-06
modified:2022-06-08
Tags:
  • -'attack.privilege-escalation'
  • -'attack.persistence'
  • -'attack.initial-access'
  • -'attack.stealth'
  • -'attack.t1078'
Logsource:
  • product: azure
  • service: auditlogs
Detection:
  selection:
    ActivityDisplayName: 'Set federation settings on domain'
  condition:selection
Falsepositives:
  -Federation Settings being modified or deleted may be performed by a system administrator.
  -Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
  -Federation Settings modified from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
Level: medium