MAL-2026-18083 Malicious code in tailwind-keyframes (npm)

tailwind-keyframes (2.0.6) is a Tailwind CSS plugin from the fake job interview campaign behind MAL-2026-17665 and MAL-2026-17666: the same Animate.css integration template, README and description, published by adriannamrr on 2026-09-28. src/motion.js:5 requires the private scoped package @aaron205whitmore/postcss-animate-utils, which is not readable on the public registry and resolves only with the npm token committed in the lure repository's web/.npmrc, so the code it delivers runs when tailwind.config.js loads the plugin and the dev server starts. The published tarball contains no install scripts and no network code; the payload lives in the private dependency, which was not retrieved. Twenty-six such packages under seventeen accounts were published between 2026-07-28 and 2026-10-09.

The package [email protected] was scanned across 8 files and no indicators of supply-chain attack were found. No install/postinstall lifecycle scripts fetching or executing remote content, no reads of installer-side credential paths (~/.aws, ~/.ssh, ~/.npmrc, browser stores), no environment-variable scraping, no hardcoded attacker endpoints, no obfuscated payloads, and no silent-relay or backdoor mechanisms were observed. Behavior is consistent with a benign Tailwind CSS keyframes utility.

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.