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
Atbroker Registry Change
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Atbroker Registry Change
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: Atbroker Registry Change
id: 9577edbb-851f-4243-8c91-1d5b50c1a39b
status: test
description: Detects creation/modification of Assistive Technology applications and persistence with usage of 'at'
references:
- http://www.hexacorn.com/blog/2016/07/22/beyond-good-ol-run-key-part-42/
- https://lolbas-project.github.io/lolbas/Binaries/Atbroker/
author: Mateusz Wydra, oscd.community
date: 2020-10-13
modified: 2023-01-19
tags:
- attack.privilege-escalation
- attack.defense-evasion
- attack.t1218
- attack.persistence
- attack.t1547
logsource:
category: registry_event
product: windows
detection:
selection:
TargetObject|contains:
- 'Software\Microsoft\Windows NT\CurrentVersion\Accessibility\ATs'
- 'Software\Microsoft\Windows NT\CurrentVersion\Accessibility\Configuration'
filter_atbroker:
Image: 'C:\Windows\system32\atbroker.exe'
TargetObject|contains: '\Microsoft\Windows NT\CurrentVersion\Accessibility\Configuration'
Details: '(Empty)'
filter_uninstallers:
Image|startswith: 'C:\Windows\Installer\MSI'
TargetObject|contains: 'Software\Microsoft\Windows NT\CurrentVersion\Accessibility\ATs'
condition: selection and not 1 of filter_*
falsepositives:
- Creation of non-default, legitimate at usage
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/registry/registry_event/registry_event_susp_atbroker_change.yml