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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Active Rule
Potential PHP Reverse Shell
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potential PHP Reverse Shell
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 PHP Reverse Shell
id: c6714a24-d7d5-4283-a36b-3ffd091d5f7e
status: test
description: |
Detects usage of the PHP CLI with the "-r" flag which allows it to run inline PHP code. The rule looks for calls to the "fsockopen" function which allows the creation of sockets.
Attackers often leverage this in combination with functions such as "exec" or "fopen" to initiate a reverse shell connection.
references:
- https://pentestmonkey.net/cheat-sheet/shells/reverse-shell-cheat-sheet
- https://www.revshells.com/
author: '@d4ns4n_'
date: 2023-04-07
tags:
- attack.execution
logsource:
category: process_creation
product: linux
detection:
selection:
Image|contains: '/php'
CommandLine|contains|all:
- ' -r '
- 'fsockopen'
CommandLine|contains:
- 'ash'
- 'bash'
- 'bsh'
- 'csh'
- 'ksh'
- 'pdksh'
- 'sh'
- 'tcsh'
- 'zsh'
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/linux/process_creation/proc_creation_lnx_php_reverse_shell.yml