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Malicious package

@antv/g-plugin-yoganpm

Advisory published Updated

@antv/g-plugin-yoga is a confirmed malicious npm package (MAL-2026-3958) that steals credentials and exfiltrates sensitive data (malicious versions 2.4.1, 2.5.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @antv/g-plugin-yoga (npm)

MAL-2026-3958
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @antv/g-plugin-yoga

What this malware does

Part of the Mini Shai-Hulud supply chain attack campaign in which a threat actor compromised the npm account atool and published 631 malicious versions across 314 npm packages in an automated 22-minute burst. Each malicious version injects a preinstall hook that executes a 498KB obfuscated Bun script, using the GitHub API as a covert exfiltration channel. Credentials are committed to attacker-controlled repositories following Dune-themed naming patterns (e.g., harkonnen-melange-742). Stolen data includes 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. Malicious versions also establish persistence via 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 specific package (@antv/g-plugin-yoga) was modified to include a malicious preinstall hook executing the obfuscated Bun payload.

The package @antv/g-plugin-yoga was found to contain malicious code.

This package was compromised as part of the ongoing "Mini Shai-Hulud is back" worm by the TeamPCP threat actor.

The package will steal credentials and then propogate it to every package it has access to. The package also attempts to remain persistent.

Malicious versions

2 flagged
2.4.12.5.1

Indicators of compromise (SHA-256)

847ef6b381d410bf176f7414a6f0fbbcf46a5f39b6d9011e126b279bd2d781df
f63287bc914e3562de51fec8b37976b039fdfa70a7dd92074406d7360a691f61

Detection & response playbook

Credential / info stealer

  1. Find it

    Search your lockfiles and build artifacts for @antv/g-plugin-yoga (2 malicious versions).

  2. If you installed it — respond

    @antv/g-plugin-yoga is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If @antv/g-plugin-yoga was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. @antv/g-plugin-yoga on npm has been identified as a malicious package (versions 2.4.1, 2.5.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

References

Credits

  • Amazon Inspector · finder
  • SafeDep · finder

Detect & block this

O3 blocks @antv/g-plugin-yoga-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

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@antv/g-plugin-yoga (npm) malicious package — MAL-2026-3958 | O3 Security