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
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Backends
17
Live from sigconverter.io
CLI Versions
10
Newest: 2.0.2
Translation Workspace
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Tune Translation
Active Rule
Forest Blizzard APT - JavaScript Constrained File Creation
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Forest Blizzard APT - JavaScript Constrained File Creation
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: Forest Blizzard APT - JavaScript Constrained File Creation
id: ec7c4e9b-9bc9-47c7-a32f-b53b598da642
status: test
description: |
Detects the creation of JavaScript files inside of the DriverStore directory.
Forest Blizzard used this to exploit the CVE-2022-38028 vulnerability in Windows Print Spooler service by modifying a JavaScript constraints file and executing it with SYSTEM-level permissions.
references:
- https://www.microsoft.com/en-us/security/blog/2024/04/22/analyzing-forest-blizzards-custom-post-compromise-tool-for-exploiting-cve-2022-38028-to-obtain-credentials/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2024-04-23
tags:
- attack.defense-evasion
- attack.t1562.002
- detection.emerging-threats
logsource:
category: file_event
product: windows
detection:
selection:
TargetFilename|startswith: 'C:\Windows\System32\DriverStore\FileRepository\'
TargetFilename|endswith: '\.js'
condition: selection
falsepositives:
- Unlikely
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules-emerging-threats/2024/TA/Forest-Blizzard/file_event_win_apt_forest_blizzard_constrained_js.yml