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Part of a larger attack: @asyncapi published 36 malicious packages. See the full campaign →
Malicious package

@asyncapi/go-watermill-templatenpm

Advisory published Updated

@asyncapi/go-watermill-template is a confirmed malicious npm package (MAL-2025-190714) that steals credentials and exfiltrates sensitive data (malicious versions 0.2.76, 0.2.77). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @asyncapi/go-watermill-template (npm)

MAL-2025-190714
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @asyncapi/go-watermill-template

What this malware does

The package @asyncapi/go-watermill-template 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

2 flagged
0.2.760.2.77

Indicators of compromise (SHA-256)

c7cc965113d2178a117e403bd2bff1fe0ced748ab6bdfb8e2f0dc123c4b46373
88957e3f78294013ec0e22167aec58b8de4dcc65099728725b884c54b6afa328
9256969005ac0bea0f18a5abe83abc7ec66af438bb32cbbdbca6a78431816370
bb673dc215ead105ad2a899c7730b7262a28bbfd6d19b760bfc107b036c0fd87

Detection & response playbook

Credential / info stealer

  1. Find it

    Search your lockfiles and build artifacts for @asyncapi/go-watermill-template (2 malicious versions).

  2. If you installed it — respond

    @asyncapi/go-watermill-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 @asyncapi/go-watermill-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. @asyncapi/go-watermill-template on npm has been identified as a malicious package (versions 0.2.76, 0.2.77 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-9mx7-r69p-qf3r

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @asyncapi/go-watermill-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.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database
@asyncapi/go-watermill-template (npm) malicious package — MAL-2025-190714 | O3 Security