MAL-2026-17553

    Dashboard / Malicious Package / MAL-2026-17553

    MAL-2026-17553

    Published: 5 Oct 2026Last Modified: 5 Oct 2026

    Summary: Malicious code in css-ikomdq-polyfill (npm)

    Details: Source: amazon-inspector (255cceca3ca8631c9b225745c5b64a71fd6c09b60fa3ad95b419fccb66f035f2) The package presents itself as a CSS polyfill but ships thunderboltRegistry.js, which on require() executes a top-level IIFE that runs id, whoami, uname -a, ifconfig/ip addr, and reads /etc/hosts via child_process.execSync, then posts the command outputs together with hostname, node version, platform, and pid to the hardcoded plain-HTTP endpoint http://dxpoc.gt.tc/callback.php/ using fetch. The module also deletes its own entries from require.cache so the payload re-runs on each require() rather than being memoized. The package name and the thunderbolt/editor/corvid Proxy facade impersonate Wix parastorage registry modules to encourage accidental installation.

    References: https://www.npmjs.com/package/css-ikomdq-polyfill/v/1.0.0

    Affected packages

    Package

    Name: css-ikomdq-polyfill

    Purl: pkg:npm/css-ikomdq-polyfill

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.0.0