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containedcritical

Malicious code in @antv/gi-assets-tugraph (npm)

The npm account `atool` was compromised and used to publish 631 malicious versions across 314 npm packages in a 22-minute automated burst, part of the "Mini Shai-Hulud" supply chain attack campaign. @antv/gi-assets-tugraph was among the affected packages, modified to include a malicious preinstall hook executing an obfuscated Bun script that exfiltrates credentials and establishes persistence.

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Disclosed
Last updated
Blast radius
631 malicious versions across 314 npm packages; affects any developer who installed affected versions
Ecosystems
npmOther
Attack vectors
Account takeoverCompromised packageMalicious commit
Threat actor
Mini Shai Hulud
Affected entities
  • @antv/gi-assets-tugraphnpm package compromised with malicious preinstall hook

A threat actor compromised the npm account atool and published 631 malicious versions across 314 npm packages in an automated 22-minute burst as part of the "Mini Shai-Hulud" supply chain attack campaign. The @antv/gi-assets-tugraph package was among those compromised.

Each malicious version injects a preinstall hook that executes a 498KB obfuscated Bun script. The script uses the GitHub API as a covert exfiltration channel to steal credentials including AWS keys, GitHub PATs, npm tokens, GCP service accounts, Azure credentials, Kubernetes service account tokens, SSH keys, Docker auth configs, database connection strings, Stripe keys, and Slack tokens. Stolen credentials are committed to attacker-controlled repositories following Dune-themed naming patterns.

Beyond credential theft, the malicious code establishes persistence through multiple mechanisms: CI/CD workflow injection via a GitHub Actions workflow named Run Copilot that dumps all secrets, AI agent session hooks, and a system daemon named kitty-monitor.

The incident was detected by multiple security sources including Amazon Inspector and Google Open Source Security.

Indicators of compromise

Packages
  • @antv/gi-assets-tugraph

Remediation

  • Immediately audit and revoke all credentials (AWS keys, GitHub PATs, npm tokens, GCP service accounts, Azure credentials, Kubernetes tokens, SSH keys, Docker auth configs, database credentials, Stripe keys, Slack tokens) that may have been exposed
  • Remove or downgrade @antv/gi-assets-tugraph to a version prior to the malicious publication
  • Scan CI/CD systems for the `Run Copilot` GitHub Actions workflow and remove it
  • Search for and remove the `kitty-monitor` system daemon from affected systems
  • Review git commit history for suspicious commits to attacker-controlled repositories with Dune-themed names
  • Implement npm package verification and integrity checks in your supply chain
  • Monitor for unauthorized access to compromised accounts and services

Sources

  1. GitHub Advisory GHSA-3hj3-73wg-w25f · GitHub Advisory Database

Cite this entry

"Malicious code in @antv/gi-assets-tugraph (npm)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 27, 2026; last updated July 27, 2026. https://supplychainattack.org/incident/malicious-code-in-antv-gi-assets-tugraph-npm-9yge11

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