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
CVE-2023-38331 Exploitation Attempt - Suspicious Double Extension File
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
CVE-2023-38331 Exploitation Attempt - Suspicious Double Extension File
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: CVE-2023-38331 Exploitation Attempt - Suspicious Double Extension File
id: e4556676-fc5c-4e95-8c39-5ef27791541f
related:
- id: ec3a3c2f-9bb0-4a9b-8f4b-5ec386544343
type: similar
status: test
description: Detects the creation of a file with a double extension and a space by WinRAR. This could be a sign of exploitation of CVE-2023-38331
references:
- https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/
- https://github.com/knight0x07/WinRAR-Code-Execution-Vulnerability-CVE-2023-38831/blob/26ab6c40b6d2c09bb4fc60feaa4a3a90cfd20c23/Part-1-Overview.md
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-08-30
tags:
- attack.execution
- cve.2023-38331
- detection.emerging-threats
logsource:
category: file_event
product: windows
detection:
selection:
Image|endswith: '\WinRAR.exe'
TargetFilename|contains: '\AppData\Local\Temp\Rar$'
TargetFilename|re: '\.[a-zA-Z0-9]{1,4} \.'
condition: selection
falsepositives:
- Unknown
level: high
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules-emerging-threats/2023/Exploits/CVE-2023-38831/file_event_win_exploit_cve_2023_38331_winrar_susp_double_ext.yml