Malicious code in @antv/l7-map (npm)
The npm account `atool` was compromised and used to publish 631 malicious versions across 314 packages, including @antv/l7-map, 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; widespread credential theft affecting AWS, GitHub, npm, GCP, Azure, Kubernetes, SSH, Docker, databases, Stripe, and Slack
- Attack vectors
- Threat actor
- Affected entities
- @antv/l7-mapCompromised as part 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 a 22-minute automated burst. This incident is part of the "Mini Shai-Hulud" supply chain attack campaign attributed to the TeamPCP threat actor.
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 and steals a broad range of credentials: 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).
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 specific package @antv/l7-map was modified to include the malicious preinstall hook executing this obfuscated payload.
The incident was identified by multiple security sources including Amazon Inspector and Google Open Source Security.
Indicators of compromise
- Packages
- @antv/l7-map
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 @antv/l7-map and all other packages from the compromised `atool` account from production environments
- Audit npm account security and enable 2FA on all npm accounts
- Review CI/CD workflows for unauthorized `Run Copilot` or similar workflows and remove them
- Check systems for the `kitty-monitor` daemon and remove if present
- Monitor for unauthorized access to exfiltrated credentials and services
- Update npm dependencies to use only verified, uncompromised versions from trusted sources
Sources
- GitHub Advisory GHSA-fgfq-w3p9-3jxh · GitHub Advisory Database
Cite this entry
"Malicious code in @antv/l7-map (npm)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 27, 2026; last updated July 28, 2026. https://supplychainattack.org/incident/malicious-code-in-antv-l7-map-npm-wkdoc5
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