MAL-2026-10586

    Dashboard / Malicious Package / MAL-2026-10586

    MAL-2026-10586

    Published: 14 Jul 2026Last Modified: 19 Aug 2026

    Summary: Malicious code in crypto-validate-lib (npm)

    Details: Source: amazon-inspector (f3d8b69cab723043b20a628a6cd17f0e5cc64051004d9beb43d4b9ed58dbd9a0) index.js contains a self-invoking IIFE that, 37 seconds after the module is required, reads a base64 blob from test/fixtures/keypairs.dat (a ~53KB opaque file masquerading as test data), decodes it to ~40KB of JavaScript, writes the result to ~/.cache-db/.node-sync/syncd.js with mode 0o700, and spawns it via a detached node child process. Persistence is installed alongside the drop: on Linux a crontab entry is appended running the dropped script every 12 hours, and on Windows a scheduled task named 'WinNodeSync' is created to run it hourly (mod 12). The hidden dot-directory name and the scheduled-task name masquerade as benign Node caching. The package is advertised as a crypto address validator; decoding a bundled opaque blob, writing it to a hidden home-directory path, installing cron/schtasks persistence, and background-executing it has no relationship to that purpose.

    References: https://www.npmjs.com/package/crypto-validate-lib/v/1.0.1, https://www.npmjs.com/package/crypto-validate-lib/v/1.0.2, https://www.npmjs.com/package/crypto-validate-lib/v/1.0.3, https://www.npmjs.com/package/crypto-validate-lib/v/1.0.0

    Affected packages

    Package

    Name: crypto-validate-lib

    Purl: pkg:npm/crypto-validate-lib

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.0.1
    1.0.2
    1.0.3
    1.0.0