MAL-2026-13824 Malicious code in mnteckets (npm)

The tarball contains only package.json and index.html. package.json declares no lifecycle scripts (preinstall/install/postinstall/prepare) and sets main to index.html, which Node cannot execute via require()/import. index.html mimics a Cloudflare Turnstile challenge and, on the challenge callback, builds a redirect URL via obfuscated string concatenation (new URL('https://mi'+…)) and calls window.location.assign to navigate the browser away. The redirect only fires when a user opens the HTML file in a browser; installing or requiring the package from Node performs no code execution and reads no installer data. The package appears to be registry-hosted phishing/redirect content rather than a supply-chain attack against npm installers.

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.