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containedcritical

Malicious code in @antv/g6-alipay (npm)

The npm account `atool` was compromised and used to publish 631 malicious versions across 314 npm packages, including @antv/g6-alipay, in a coordinated 22-minute attack. Each malicious version injects a preinstall hook executing an obfuscated Bun script that exfiltrates credentials and establishes persistence via CI/CD workflows 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
npm
Attack vectors
Compromised packageAccount takeover
Threat actor
Mini Shai Hulud
Affected entities
  • @antv/g6-alipayCompromised npm package with malicious preinstall hook

A threat actor compromised the npm account atool and launched the "Mini Shai-Hulud" supply chain attack campaign, publishing 631 malicious versions across 314 npm packages in an automated 22-minute burst on July 27, 2026. The @antv/g6-alipay package was among those compromised.

Each malicious version includes a preinstall hook that executes a 498KB obfuscated Bun script. The script exfiltrates 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. Exfiltration occurs via the GitHub API to attacker-controlled repositories following Dune-themed naming patterns (e.g., harkonnen-melange-742).

Beyond credential theft, the malicious payload establishes persistence through multiple mechanisms: CI/CD workflow injection (a GitHub Actions workflow named Run Copilot that dumps all secrets via toJSON(secrets)), AI agent session hooks, and a system daemon named kitty-monitor. The attack was confirmed by multiple security sources including Amazon Inspector and Google Open Source Security.

Indicators of compromise

Packages
  • @antv/g6-alipay

Remediation

  • Immediately audit and revoke all credentials (AWS keys, GitHub PATs, npm tokens, GCP service accounts, Azure credentials, Kubernetes tokens, SSH keys, Docker configs, database credentials, Stripe keys, Slack tokens) that may have been exposed
  • Remove all malicious versions of @antv/g6-alipay and any other affected packages from your dependency tree
  • Inspect CI/CD workflows for unauthorized `Run Copilot` workflows or other suspicious automation
  • Check system processes for the `kitty-monitor` daemon and remove if present
  • Review git commit history for suspicious commits to attacker-controlled repositories
  • Rotate all secrets and credentials used in development and production environments
  • Monitor npm account activity and enable multi-factor authentication on all npm accounts
  • Scan systems for persistence mechanisms including unauthorized cron jobs, systemd services, and shell configuration modifications

Sources

  1. GitHub Advisory GHSA-g4fm-25p9-p368 · GitHub Advisory Database

Cite this entry

"Malicious code in @antv/g6-alipay (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-g6-alipay-npm-ooslw4

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