Sigma rule: TanStack Supply-Chain Attack DNS Indicators

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-3c89028e3c8e, updated 2026-05-12T00:00:00.000Z.

Rule

Title
TanStack Supply-Chain Attack DNS Indicators
Status
experimental
Level
medium
Author
Leonardo Gasparini
Date
2026-05-12
File
rules-emerging-threats/2026/Malware/TanStack-Supply-Chain/dns_query_win_malware_tanstack_supply_chain_c2.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects DNS queries to attacker-controlled infrastructure used by the Mini Shai-Hulud campaign targeting TanStack npm packages along with other packages such as mistralai, uipath and so on.
The domain git-tanstack.com (registered May 9, 2026) hosted secondary payloads including transformers.pyz.
The filev2.getsession.org endpoint was used for credential exfiltration via the Session protocol.

Log source

product
windows
category
dns_query

Detection

selection_attacker_apex:
    QueryName: 'git-tanstack.com'
selection_session_exfil:
    QueryName: 'filev2.getsession.org'
condition: 1 of selection_*

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.command-and-control
  • attack.t1071.001
  • attack.exfiltration
  • attack.t1048
  • 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/dns_query_win_malware_tanstack_supply_chain_c2.yml

Sources and licences

  • SigmaHQ

    "TanStack Supply-Chain Attack DNS Indicators" by Leonardo Gasparini (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2026/Malware/TanStack-Supply-Chain/dns_query_win_malware_tanstack_supply_chain_c2.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 DNS Indicators",
entity page, dataset version ref-3c89028e3c8e, updated 2026-05-12T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/ac5a4e3f-7f9d-6abc-d8ea-3b4c5f6a7b8c (accessed 2026-11-03).
Underlying source: SigmaHQ rule ac5a4e3f-7f9d-6abc-d8ea-3b4c5f6a7b8c, 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.