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.

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Indexed Rules

3,707

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Backends

Live from sigconverter.io

CLI Versions

Newest: 2.0.2

Translation Workspace

Shape the rule before it leaves Phoenix

Tune Translation

Active Rule

Potentially Suspicious Shell Script Creation in Profile Folder

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Potentially Suspicious Shell Script Creation in Profile Folder

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: Potentially Suspicious Shell Script Creation in Profile Folder
id: 13f08f54-e705-4498-91fd-cce9d9cee9f1
status: test
description: Detects the creation of shell scripts under the "profile.d" path.
references:
    - https://blogs.jpcert.or.jp/en/2023/05/gobrat.html
    - https://jstnk9.github.io/jstnk9/research/GobRAT-Malware/
    - https://www.virustotal.com/gui/file/60bcd645450e4c846238cf0e7226dc40c84c96eba99f6b2cffcd0ab4a391c8b3/detection
    - https://www.virustotal.com/gui/file/3e44c807a25a56f4068b5b8186eee5002eed6f26d665a8b791c472ad154585d1/detection
author: Joseliyo Sanchez, @Joseliyo_Jstnk
date: 2023-06-02
tags:
    - attack.persistence
logsource:
    product: linux
    category: file_event
detection:
    selection:
        TargetFilename|contains: '/etc/profile.d/'
        TargetFilename|endswith:
            - '.csh'
            - '.sh'
    condition: selection
falsepositives:
    - Legitimate shell scripts in the "profile.d" directory could be common in your environment. Apply additional filter accordingly via "image", by adding specific filenames you "trust" or by correlating it with other events.
    - Regular file creation during system update or software installation by the package manager
level: low # Can be increased to a higher level after some tuning

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules/linux/file_event/file_event_lnx_susp_shell_script_under_profile_directory.yml