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Part of a larger attack: @ensdomains published 44 malicious packages. See the full campaign →
Malicious package

@ensdomains/ens-archived-contractsnpm

Advisory published Updated

@ensdomains/ens-archived-contracts is a confirmed malicious npm package (MAL-2025-190805) that steals credentials and exfiltrates sensitive data (malicious version 0.0.3). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @ensdomains/ens-archived-contracts (npm)

MAL-2025-190805
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @ensdomains/ens-archived-contracts

What this malware does

The package @ensdomains/ens-archived-contracts 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
0.0.3

Indicators of compromise (SHA-256)

352294ac123a5ed1170d5414ac72fce25e2c6ead61b627434327f2297ce6f58e
c494307ab46ed2af70af69daaf50ee6ce9bee9d65e2f9610c692e97db58c7526
84c293010028561989536d94314a463538717d59494a41a7c0039d698e6353f8
a67d6030f1161c31b2ca9538776ab6c6026e708f1c84cd3afadce2dc1487be5f

Detection & response playbook

Credential / info stealer

  1. Find it

    Search your lockfiles and build artifacts for @ensdomains/ens-archived-contracts (version 0.0.3).

  2. If you installed it — respond

    @ensdomains/ens-archived-contracts 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 @ensdomains/ens-archived-contracts 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. @ensdomains/ens-archived-contracts on npm has been identified as a malicious package (version 0.0.3 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-rgj8-7qhv-g7fm

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @ensdomains/ens-archived-contracts-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
@ensdomains/ens-archived-contracts (npm) malicious package — MAL-2025-190805 | O3 Security