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Malicious package

vf-oss-templatenpm

Advisory published Updated

vf-oss-template is a confirmed malicious npm package (MAL-2025-191447) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.1, 1.0.2, 1.0.3…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in vf-oss-template (npm)

MAL-2025-191447
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall vf-oss-template

What this malware does

The package vf-oss-template was found to contain malicious code.

This package was compromised by the Sha1-Hulud: The Second Coming NPM worm. The malicious payload steals tokens and credentials and publishes them to GitHub. The worm will propogate itself to NPM packages the user owns and establish persistence is a GitHub action. The package may also destroy the user's home directory.

Malicious versions

4 flagged
1.0.11.0.21.0.31.0.4

Indicators of compromise (SHA-256)

5aab1429675f85376bd921f9f6c79d7878c53d4c59002a0269af1003fd1b6044
d103d87bdd4b4e74f7f65f5726dc9eac4871a42a7298a619c317e9931c42aa84
3e750fa2c56f959c3fe36251cc187767b9d8ea408ff1842f94bece1be4a5bee4

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for vf-oss-template (4 malicious versions).

  2. If you installed it — respond

    vf-oss-template 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 vf-oss-template 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. vf-oss-template on npm has been identified as a malicious package (versions 1.0.1, 1.0.2, 1.0.3, 1.0.4 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-06524

References

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks vf-oss-template-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Explore

vf-oss-template (npm) malicious package — MAL-2025-191447 | O3 Security