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
Potential Data Exfiltration Via Audio File
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potential Data Exfiltration Via Audio 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: Potential Data Exfiltration Via Audio File
id: e4f93c99-396f-47c8-bb0f-201b1fa69034
status: test
description: Detects potential exfiltration attempt via audio file using PowerShell
references:
- https://github.com/gtworek/PSBits/blob/e97cbbb173b31cbc4d37244d3412de0a114dacfb/NoDLP/bin2wav.ps1
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-01-16
tags:
- attack.exfiltration
logsource:
product: windows
category: ps_script
definition: 'Requirements: Script Block Logging must be enabled'
detection:
selection_main:
ScriptBlockText|contains|all:
- '[System.Math]::'
- '[IO.FileMode]::'
- 'BinaryWriter'
selection_header_wav:
ScriptBlockText|contains|all:
# Byte chunks from the WAV header used in the example POC
# You can extend this for different audio formats by adding different selections
- '0x52'
- '0x49'
- '0x46'
- '0x57'
- '0x41'
- '0x56'
- '0x45'
- '0xAC'
condition: selection_main and 1 of selection_header_*
falsepositives:
- Unknown
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/powershell/powershell_script/posh_ps_audio_exfiltration.yml