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 local pySigma backend, then reveal pipelines only when you actually need them.

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Indexed Rules

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Backends

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pySigma Versions

Newest: 2.0.1

Translation Workspace

Shape the rule before it leaves Phoenix

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Active Rule

TanStack Supply-Chain Attack File Creation Indicators - Linux

pySigma version

Backends follow their supported pySigma version. Select 1.5.1 for Elasticsearch, Kusto, and other 1.x plugins.

Backend

Format

Target Profile

Splunk

Splunk through pysigma-backend-splunk.

Format Mode

Default

Default pySigma output mode for this backend.

Conversion Output

TanStack Supply-Chain Attack File Creation Indicators - Linux

Using Splunk · Default · pySigma 2.0.1

Translation controls

Adjust the rule on the left, then regenerate when you want a fresh backend-native query.

BackendSplunkFormatDefaultVersion2.0.1

title: TanStack Supply-Chain Attack File Creation Indicators - Linux
id: 2b5e4d3f-7c9a-4fab-a8d1-3e6f5a7b8c9d
status: experimental
description: Detects file creation indicators associated with the Mini Shai-Hulud supply-chain campaign targeting TanStack npm packages and others such as mistralai and uipath reported on early May 2026.
references:
    - https://www.netskope.com/blog/shai-hulud-style-npm-worm-hits-tanstack
    - https://socket.dev/blog/tanstack-npm-packages-compromised-mini-shai-hulud-supply-chain-attack
    - https://socket.dev/supply-chain-attacks/mini-shai-hulud
    - https://safedep.io/mass-npm-supply-chain-attack-tanstack-mistral/
author: Leonardo Gasparini
date: 2026-05-12
tags:
    - attack.initial-access
    - attack.t1195.002
    - attack.execution
    - attack.t1059.007
    - attack.persistence
    - attack.privilege-escalation
    - attack.t1547.004
    - detection.emerging-threats
logsource:
    category: file_event
    product: linux
detection:
    selection_malware_files:
        TargetFilename|endswith:
            - '/router_init.js'
            - '/tanstack_runner.js'
    selection_persistence_claude_vscode:
        TargetFilename|endswith:
            - '/.claude/router_runtime.js'
            - '/.vscode/router_runtime.js'
    selection_pypi_payload:
        TargetFilename: '/tmp/transformers.pyz'
    condition: 1 of selection_*
falsepositives:
    - Unknown
level: medium

CLI command

Sigma CLI 4.0.0 · Install matching versions, then run from the Phoenix project directory.

python -m pip install 'sigma-cli==4.0.0' 'pysigma==2.0.1' 'pysigma-backend-splunk==3.0.0'
sigma convert --without-pipeline -t splunk -f default 'sigma/rules-emerging-threats/2026/Malware/TanStack-Supply-Chain/file_event_lnx_malware_tanstack_supply_chain.yml'