Malicious code in @antv/x6-components (npm)
The npm account `atool` was compromised and used to publish 631 malicious versions across 314 packages, including @antv/x6-components, in a 22-minute automated burst. Each 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; widespread credential exfiltration affecting AWS, GitHub, npm, GCP, Azure, Kubernetes, SSH, Docker, databases, Stripe, and Slack
- Attack vectors
- Threat actor
- Affected entities
- @antv/x6-componentsMalicious preinstall hook injected; part of Mini Shai-Hulud campaign
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. The @antv/x6-components 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 (e.g., harkonnen-melange-742).
Beyond credential theft, the malicious versions establish 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 represents a sophisticated, multi-vector supply chain attack with broad impact across development and production environments.
The incident was identified by Amazon Inspector and Google Open Source Security, with attribution to the TeamPC threat actor.
Indicators of compromise
- Packages
- @antv/x6-components
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/x6-components and the 313 other compromised packages from production and development environments
- Review and remove any GitHub Actions workflows named 'Run Copilot' or other suspicious CI/CD workflows injected during the attack window
- Scan systems for the 'kitty-monitor' daemon and remove it
- Audit git repositories for commits to attacker-controlled repos with Dune-themed names
- Implement npm package pinning and integrity verification to prevent installation of malicious versions
- Enable 2FA on all npm accounts and review account access logs
- Monitor for any lateral movement or data exfiltration attempts using the stolen credentials
Sources
- GitHub Advisory GHSA-qcw9-7qh9-h2m3 · GitHub Advisory Database
Cite this entry
"Malicious code in @antv/x6-components (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-x6-components-npm-1lz366
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