Malicious code in @antv/chart-visualization-skills (npm)
The npm account 'atool' was compromised and used to publish 631 malicious versions across 314 packages, including @antv/chart-visualization-skills, 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 workflow injection and system daemons.
- Disclosed
- Last updated
- Blast radius
- 631 malicious versions across 314 npm packages; affects any developer who installed affected versions
- Ecosystems
- Attack vectors
- Threat actor
- Affected entities
- @antv/chart-visualization-skillsPart of Mini Shai-Hulud campaign; malicious preinstall hook injected
A threat actor compromised the npm account atool and published 631 malicious versions across 314 npm packages in an automated 22-minute burst, part of the "Mini Shai-Hulud" supply chain attack campaign. The @antv/chart-visualization-skills package was among those affected.
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 data is 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 that dumps all secrets via toJSON(secrets)), AI agent session hooks, and a system daemon named kitty-monitor.
The incident was identified by both Amazon Inspector and Google Open Source Security scanning systems.
Indicators of compromise
- Packages
- @antv/chart-visualization-skills
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 all versions of @antv/chart-visualization-skills and other affected packages from npm; do not install or update to any version published during the attack window
- Inspect CI/CD workflows for unauthorized `Run Copilot` workflow or other suspicious workflow modifications; remove any injected workflows
- Search systems for the `kitty-monitor` daemon and remove it; audit system processes and startup configurations for persistence mechanisms
- Review git commit history in attacker-controlled repositories (Dune-themed naming patterns) for exfiltrated secrets and rotate all exposed credentials
- Update npm, GitHub, and other package management credentials with strong, unique values
- Monitor for unauthorized access to accounts and systems using stolen credentials
Sources
- GitHub Advisory GHSA-h9vm-j4w2-f2qv · GitHub Advisory Database
Cite this entry
"Malicious code in @antv/chart-visualization-skills (npm)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 26, 2026; last updated July 26, 2026. https://supplychainattack.org/incident/malicious-code-in-antv-chart-visualization-skills-npm-1kl0dy
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