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Malicious package

@pruthvi21/use-debouncenpm

Advisory published Updated

@pruthvi21/use-debounce is a confirmed malicious npm package (MAL-2025-191049) that steals credentials and exfiltrates sensitive data (malicious version 1.0.3). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @pruthvi21/use-debounce (npm)

MAL-2025-191049
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @pruthvi21/use-debounce

What this malware does

The package @pruthvi21/use-debounce was found to contain malicious code.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

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

1 flagged
1.0.3

Indicators of compromise (SHA-256)

9a357f6815a202889d9127a7356875107eeda684055276b7d9f7ebe0732853b7
44ea1f42c1963f30c12706128e93eca47ee4dd8ff4aa4b271a9a72e45c14ba5b
4cd8d11cd0a3abe19ac13cfc1b3bf6a4f1388ac2c6a404090a1264d32de390e8

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for @pruthvi21/use-debounce (version 1.0.3).

  2. If you installed it — respond

    @pruthvi21/use-debounce 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 @pruthvi21/use-debounce 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. @pruthvi21/use-debounce on npm has been identified as a malicious package (version 1.0.3 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-35wh-x8vx-96h3

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @pruthvi21/use-debounce-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

@pruthvi21/use-debounce (npm) malicious package — MAL-2025-191049 | O3 Security