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Part of a larger attack: @oku-ui published 43 malicious packages. See the full campaign →
Malicious package

@oku-ui/switchnpm

Advisory published Updated

@oku-ui/switch is a confirmed malicious npm package (MAL-2025-191275) that steals credentials and exfiltrates sensitive data (malicious version 0.6.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @oku-ui/switch (npm)

MAL-2025-191275
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @oku-ui/switch

What this malware does

The package @oku-ui/switch was found to contain malicious code.

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
0.6.2

Indicators of compromise (SHA-256)

8fe8dfb185427aed874803421ce937f1421e0d09326b811ec6f5d760b97cb6e5
740a6698034fbce630b1da1ce44728782b3f71faffd3ee2801c45b6a3f9e6f7e

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for @oku-ui/switch (version 0.6.2).

  2. If you installed it — respond

    @oku-ui/switch 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 @oku-ui/switch 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. @oku-ui/switch on npm has been identified as a malicious package (version 0.6.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @oku-ui/switch-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

@oku-ui/switch (npm) malicious package — MAL-2025-191275 | O3 Security