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Malicious package

zapier-platform-corenpm

Malicious code in zapier-platform-core (npm) Remove it immediately and rotate any exposed credentials.

MAL-2025-190704
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall zapier-platform-core

What this malware does

The package zapier-platform-core 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

3 flagged
18.0.218.0.318.0.4

Indicators of compromise (SHA-256)

b5f9663ceb8c90f01b24d8496d0dcc5d0b22fc42783d90da154532df32d841d7
feaebf66449e3086f74f77ceae356f74e4eefe23a3624f5fe1d4c7c1838ea25e
06ad15ba9266af46b18643e8867433ac7b80f0dced6e9b18d3ba74683290da5d

Detection & response playbook

Credential / info stealer
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for zapier-platform-core (3 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging zapier-platform-core across your stack and pipelines.

  2. If you installed it — respond

    zapier-platform-core 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 zapier-platform-core was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks zapier-platform-core before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. zapier-platform-core on npm has been identified as a malicious package (versions 18.0.2, 18.0.3, 18.0.4 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-5qxq-q93m-f952

References

Credits

  • Amazon Inspector · finder

Detect & block this

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

zapier-platform-core (npm) malicious package — MAL-2025-190704 | O3 Security