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Malicious package

@ensdomains/unicode-confusablesnpm

Malicious code in @ensdomains/unicode-confusables (npm) Remove it immediately and rotate any exposed credentials.

MAL-2025-190740
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @ensdomains/unicode-confusables

What this malware does

The package @ensdomains/unicode-confusables 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
0.1.1

Indicators of compromise (SHA-256)

f656b491bd2950b9849202611816caee994c3811ec99433c86ea32fa4645e2ba
1f25465205590fbceb2bb8ae1db02fd1e80f8d085af135427cd757a3b08a1da6
6a2926d05f22d462c7fcc922df63bd089f1a9cfb6323f3b1241a8f7ae7ef1b87
d0875758b4f35078c40bb20adcfafc23ff04cd7e5528c7fb5f691f9ce6ccb284

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 @ensdomains/unicode-confusables (version 0.1.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @ensdomains/unicode-confusables across your stack and pipelines.

  2. If you installed it — respond

    @ensdomains/unicode-confusables 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/unicode-confusables 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 @ensdomains/unicode-confusables 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. @ensdomains/unicode-confusables on npm has been identified as a malicious package (version 0.1.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-6459-r5c7-44m9

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @ensdomains/unicode-confusables-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.