MAL-2026-16328

    Dashboard / Malicious Package / MAL-2026-16328

    MAL-2026-16328

    Published: 21 Sept 2026Last Modified: 21 Sept 2026

    Summary: Malicious code in catwrestlinghuman (npm)

    Details: Source: amazon-inspector (6c4045339387526c5db90832687d1691c2caddba3b9cb05006022704bf094653) package.json declares a postinstall hook `node index.js`. index.js is a 111KB blob composed exclusively of the JSFuck character set (`[]()!+`), which decodes at runtime via `Function(<decoded string>)()` to arbitrary JavaScript. A sibling file extension.js (126KB) uses the same JSFuck encoding, indicating a multi-stage opaque payload. The package has no description, no author, and no dependencies, and ships no readable source — the JSFuck encoding is exclusively an obfuscation technique used to hide executable code from scanners and reviewers. Installing this package causes automatic execution of the opaque payload on the installer's machine during `npm install`.

    References: https://www.npmjs.com/package/catwrestlinghuman/v/1.0.0

    Affected packages

    Package

    Name: catwrestlinghuman

    Purl: pkg:npm/catwrestlinghuman

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.0.0