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

The npm account 'atool' was compromised and used to publish 631 malicious versions across 314 packages, including @antv/gi-assets-hugegraph. Each version injects a preinstall hook executing an obfuscated Bun script that exfiltrates credentials via the GitHub API and establishes persistence through CI/CD workflow injection and system daemons.

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Disclosed
Last updated
Blast radius
631 malicious versions across 314 npm packages; widespread credential exfiltration affecting AWS, GitHub, npm, GCP, Azure, Kubernetes, SSH, Docker, databases, Stripe, and Slack
Ecosystems
npmOther
Attack vectors
Account takeoverCompromised packageMalicious commit
Threat actor
Mini Shai Hulud
Affected entities
  • @antv/gi-assets-hugegraphMalicious preinstall hook injected; part of Mini Shai-Hulud campaign

A threat actor compromised the npm account atool and launched an automated attack publishing 631 malicious versions across 314 npm packages in a 22-minute burst. The @antv/gi-assets-hugegraph 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 sensitive 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 (e.g., harkonnen-melange-742).

Beyond credential theft, the malicious code establishes persistence through multiple mechanisms: CI/CD workflow injection (a GitHub Actions workflow named Run Copilot dumps all secrets via toJSON(secrets)), AI agent session hooks, and a system daemon named kitty-monitor. This campaign is part of the "Mini Shai-Hulud" supply chain attack.

The compromise was identified by multiple security sources including Amazon Inspector and Google Open Source Security.

Indicators of compromise

Packages
  • @antv/gi-assets-hugegraph

Remediation

  • Immediately 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 all malicious versions of @antv/gi-assets-hugegraph and other affected packages from npm
  • Audit npm account 'atool' and reset its credentials; enable MFA on all npm accounts
  • 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 package pinning and integrity verification for npm dependencies
  • Monitor for unauthorized access using stolen credentials and rotate all exposed secrets

Sources

  1. GitHub Advisory GHSA-4xjj-8x22-f2mm · GitHub Advisory Database

Cite this entry

"Malicious code in @antv/gi-assets-hugegraph (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-hugegraph-npm-1qujfp

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