Emerging Threathighexperimental
TanStack Supply-Chain Attack Execution Indicators - Windows
Detects process execution indicators associated with the Mini Shai-Hulud supply-chain campaign targeting TanStack npm packages and others such as mistralai, uipath reported on early May 2026.
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Launch
Emerging Threat
Active Threat
Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic1 selector
detection:
selection:
Image|endswith: '\bun.exe'
CommandLine|contains|all:
- 'run'
- 'tanstack_runner.js'
condition: selectionFalse Positives
Unlikely
False positives are unlikely for most environments. High confidence detection.
MITRE ATT&CK
Tactics
Sub-techniques
Other
detection.emerging-threats
Rule Metadata
Rule ID
9b4f3d2e-6e8c-5fab-c7d9-2a3b4e5f6a7b
Status
experimental
Level
high
Type
Emerging Threat
Created
Tue May 12
Author
Path
rules-emerging-threats/2026/Malware/TanStack-Supply-Chain/proc_creation_win_malware_tanstack_supply_chain.yml
Raw Tags
attack.executionattack.t1059.007attack.t1204.002detection.emerging-threats