Sigma rule: TanStack Supply-Chain Attack Execution Indicators - Linux

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-9422eb1f1422, updated 2026-05-12T00:00:00.000Z.

Rule

Title
TanStack Supply-Chain Attack Execution Indicators - Linux
Status
experimental
Level
high
Author
Leonardo Gasparini
Date
2026-05-12
File
rules-emerging-threats/2026/Malware/TanStack-Supply-Chain/proc_creation_lnx_malware_tanstack_supply_chain.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects process execution 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.
The preinstall hook runs setup.mjs, which downloads a platform-specific Bun runtime.

Log source

product
linux
category
process_creation

Detection

selection_bun_runner:
    Image|endswith: '/bun'
    CommandLine|contains|all:
        - 'bun'
        - 'run'
        - 'tanstack_runner.js'
selection_pypi_payload:
    # observed on [email protected] compromise
    Image|contains: '/python3'
    CommandLine|contains: '/tmp/transformers.pyz'
condition: 1 of selection_*

False positives (as the rule lists them)

  • Unlikely

Tags

  • attack.execution
  • attack.t1059.007
  • attack.t1059.006
  • attack.t1204.002
  • detection.emerging-threats

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2026/Malware/TanStack-Supply-Chain/proc_creation_lnx_malware_tanstack_supply_chain.yml

Sources and licences

  • SigmaHQ

    "TanStack Supply-Chain Attack Execution Indicators - Linux" by Leonardo Gasparini (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2026/Malware/TanStack-Supply-Chain/proc_creation_lnx_malware_tanstack_supply_chain.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: TanStack Supply-Chain Attack Execution Indicators - Linux",
entity page, dataset version ref-9422eb1f1422, updated 2026-05-12T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/3c6f5e4a-8d0b-6abc-d9e2-4f7a6b8c9d0e (accessed 2026-11-03).
Underlying source: SigmaHQ rule 3c6f5e4a-8d0b-6abc-d9e2-4f7a6b8c9d0e, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.