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Malicious package

ndmfguyhoxc3npm

Advisory published Updated

ndmfguyhoxc3 is a confirmed malicious npm package (MAL-2026-15614) that typosquats a legitimate package to trick installs (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in ndmfguyhoxc3 (npm)

MAL-2026-15614
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall ndmfguyhoxc3

What this malware does

Published as part of a ClickFix-style fake-CAPTCHA phishing campaign documented by OX Security (see reference). The package's only file is index.html, declared as the npm "main" entry; package.json defines no preinstall/install/postinstall/prepare lifecycle script, so the payload does not execute at npm install time. index.html renders a fake Cloudflare Turnstile verification widget. An obfuscator.io-obfuscated inline script builds a hardcoded redirect URL to https://login.microsofte.live/ (a typosquat of a Microsoft sign-in domain), appends the visitor's original query-string parameters, and navigates the browser there via window.location.replace(). The package therefore does not attack the installing machine directly; it is used as a static file host on the npm CDN (e.g. unpkg/jsDelivr) so the index.html can be linked to and opened directly in a victim's browser as a phishing/ClickFix landing page. Published by npm user "johnvaldez9a" as part of a burst of near-identical single-purpose packages published between 2026-08-04 and 2026-08-24 that share this same fake-Turnstile-redirect page structure.

The package was found to contain malicious code or consuming dependency that contains 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.

Malicious versions

1 flagged
1.0.0

Indicators of compromise (SHA-256)

3c17bad8db7951fce1e30ce456b4695d38f9771e2700e7f45427be6ce249b76c
215f09cb6e556d27752be5a610d19226ef5ae257a3f432c3a5a4dee781e13d0e

Detection & response playbook

Typosquat
  1. Find it

    Search your lockfiles and build artifacts for ndmfguyhoxc3 (version 1.0.0).

  2. If you installed it — respond

    ndmfguyhoxc3 is a typosquat — you almost certainly intended a legitimately-named package. Remove ndmfguyhoxc3, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.

  3. Did it already run?

    If ndmfguyhoxc3 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. ndmfguyhoxc3 on npm has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-019254GHSA-78rr-8f2w-5rc6

References

Credits

  • Amazon Inspector · finder
  • OX Security · finder

Detect & block this

O3 blocks ndmfguyhoxc3-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Explore

ndmfguyhoxc3 (npm) malicious package — MAL-2026-15614 | O3 Security