Malicious code in @antv/g-device-api (npm)
The npm account `atool` was compromised and used to publish 631 malicious versions across 314 packages, including @antv/g-device-api. Each version injects a preinstall hook executing an obfuscated Bun script that exfiltrates credentials via GitHub API and establishes persistence through 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/g-device-apiMalicious preinstall hook injected; part of Mini Shai-Hulud campaign
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, part of the "Mini Shai-Hulud" supply chain attack campaign. The @antv/g-device-api 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 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 dumps all secrets via toJSON(secrets)), AI agent session hooks, and a system daemon named kitty-monitor. The attack was confirmed by both Amazon Inspector and Google Open Source Security sources.
Indicators of compromise
- Packages
- @antv/g-device-api
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 or downgrade @antv/g-device-api to a known-clean version prior to the compromise
- Scan CI/CD systems for the injected 'Run Copilot' GitHub Actions workflow and remove it
- Search for and remove the 'kitty-monitor' system daemon from affected systems
- Review git commit history for suspicious commits to attacker-controlled repositories with Dune-themed names
- Implement npm package integrity verification and consider using npm audit to identify other compromised packages from the 314 affected
- Monitor for signs of persistence mechanisms and unauthorized access using the stolen credentials
Sources
- GitHub Advisory GHSA-hqjp-pg4j-q8g2 · GitHub Advisory Database
Cite this entry
"Malicious code in @antv/g-device-api (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-g-device-api-npm-3t69rv
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