Detection rules › Sigma
Azure Domain Federation Settings Modified
Identifies when an user or application modified the federation settings on the domain.
Known false positives
- 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.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Initial Access | |
| Persistence | |
| Privilege Escalation | |
| Stealth |
Telemetry coverage
| Platform | Record / event type |
|---|---|
| Azure | Set federation settings on domain |
Rules detecting the same action
These rules filter on the same operation.
- [Entra ID] Domain Federation Trust Settings Modified (Kusto)
- Azure AD New Custom Domain Added (Splunk)
- Azure AD New Federated Domain Added (Splunk)
- Entra ID Custom Domain Added or Verified (Elastic)
- Entra ID Domain Federation Configuration Change (Elastic)
- Modified domain federation trust settings (Kusto)
- New onmicrosoft domain added to tenant (Kusto)
- New Root Certificate Authority Added (Sigma)
Rule body
title: Azure Domain Federation Settings Modified
id: 352a54e1-74ba-4929-9d47-8193d67aba1e
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
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
ActivityDisplayName: Set federation settings on domain
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
ActivityDisplayName | eq |
| field:"azure_ad::activity_display_name" kind:eq value:"Set federation settings on domain" |