Malicious code in @antv/g6-plugin (npm)
The npm account `atool` was compromised and used to publish 631 malicious versions across 314 packages, including @antv/g6-plugin, as part of the "Mini Shai-Hulud" supply chain attack campaign. 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.
- Disclosed
- Last updated
- Blast radius
- 631 malicious versions across 314 npm packages; widespread credential theft affecting AWS, GitHub, npm, GCP, Azure, Kubernetes, SSH, Docker, databases, Stripe, and Slack
- Ecosystems
- Attack vectors
- Threat actor
- Affected entities
- @antv/g6-pluginCompromised as part of Mini Shai-Hulud campaign; malicious preinstall hook injected
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/g6-plugin package was among those compromised, modified to include a malicious preinstall hook.
Each malicious version executes a 498KB obfuscated Bun script that 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. The script uses the GitHub API as a covert exfiltration channel, committing stolen data to attacker-controlled repositories following Dune-themed naming patterns.
Beyond credential theft, the attack 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. This campaign is identified as part of the "Mini Shai-Hulud" attack series attributed to the TeamPCP threat actor.
Indicators of compromise
- Packages
- @antv/g6-plugin
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 or audit all GitHub Actions workflows, particularly any named 'Run Copilot' or similar, for unauthorized secret exfiltration
- Uninstall or downgrade @antv/g6-plugin to a version prior to the malicious release; verify integrity of any installed version
- Scan systems for the 'kitty-monitor' daemon and remove if present
- Review npm account security and enable 2FA; audit all packages published by the `atool` account
- Check CI/CD logs and GitHub Actions workflow execution history for suspicious activity
- Monitor for unauthorized access to exfiltrated credentials and implement credential rotation across all services
Sources
- GitHub Advisory GHSA-8mwh-2297-272x · GitHub Advisory Database
Cite this entry
"Malicious code in @antv/g6-plugin (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-plugin-npm-1yiizm
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