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 Unusual Authentication Interruption
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Azure Unusual Authentication Interruption
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 Unusual Authentication Interruption
id: 8366030e-7216-476b-9927-271d79f13cf3
status: test
description: Detects when there is a interruption in the authentication process.
references:
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-privileged-accounts
author: Austin Songer @austinsonger
date: 2021-11-26
modified: 2022-12-18
tags:
- attack.privilege-escalation
- attack.persistence
- attack.defense-evasion
- attack.initial-access
- attack.t1078
logsource:
product: azure
service: signinlogs
detection:
selection_50097:
ResultType: 50097
ResultDescription: 'Device authentication is required'
selection_50155:
ResultType: 50155
ResultDescription: 'DeviceAuthenticationFailed'
selection_50158:
ResultType: 50158
ResultDescription: 'ExternalSecurityChallenge - External security challenge was not satisfied'
condition: 1 of selection_*
falsepositives:
- Unknown
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/cloud/azure/signin_logs/azure_unusual_authentication_interruption.yml