Phoenix Studio
Convert indexed Sigma rules into analyst-ready detections.
This studio is built around Phoenix's own rule corpus, not a blank editor. Search by title or rule id, choose a live sigma-cli backend, then reveal pipelines only when you actually need them.
Indexed Rules
3,707
Ready to search
Backends
17
Live from sigconverter.io
CLI Versions
10
Newest: 2.0.2
Translation Workspace
Shape the rule before it leaves Phoenix
Tune Translation
Active Rule
Azure Active Directory Hybrid Health AD FS New Server
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Azure Active Directory Hybrid Health AD FS New Server
Using Splunk · Default · sigma-cli 2.0.2
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion2.0.2
title: Azure Active Directory Hybrid Health AD FS New Server
id: 288a39fc-4914-4831-9ada-270e9dc12cb4
status: test
description: |
This detection uses azureactivity logs (Administrative category) to identify the creation or update of a server instance in an Azure AD Hybrid health AD FS service.
A threat actor can create a new AD Health ADFS service and create a fake server instance to spoof AD FS signing logs. There is no need to compromise an on-prem AD FS server.
This can be done programmatically via HTTP requests to Azure.
references:
- https://o365blog.com/post/hybridhealthagent/
author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research), MSTIC
date: 2021-08-26
modified: 2023-10-11
tags:
- attack.defense-evasion
- attack.t1578
logsource:
product: azure
service: activitylogs
detection:
selection:
CategoryValue: 'Administrative'
ResourceProviderValue: 'Microsoft.ADHybridHealthService'
ResourceId|contains: 'AdFederationService'
OperationNameValue: 'Microsoft.ADHybridHealthService/services/servicemembers/action'
condition: selection
falsepositives:
- Legitimate AD FS servers added to an AAD Health AD FS service instance
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/cloud/azure/activity_logs/azure_aadhybridhealth_adfs_new_server.yml