MAL-2026-17511

    Dashboard / Malicious Package / MAL-2026-17511

    MAL-2026-17511

    Published: 4 Oct 2026Last Modified: 4 Oct 2026

    Summary: Malicious code in lite-mater (npm)

    Details: Source: amazon-inspector (532663c4102d3cf7310e29ca1eb2b389c5c32c1e541da219b7c4364968f4e807) package.json declares a postinstall lifecycle hook `wscript.exe 4444.vbs` that runs automatically on `npm install` on Windows hosts. The shipped 4444.vbs (~765 KB) is a multi-layer obfuscated loader: an embedded payload is stored as a large ArtifactBundleHX[] string array, Base64-decoded via MSXML DOM into a byte buffer, then decrypted through a custom XOR routine, an AES forward S-box, and a ChaCha20-IETF stream layer. The reconstructed payload is written to %TEMP%\pfNNNNN.dat and handed to powershell.exe via a two-tier loader whose in-source comments reference PowerShell process hollowing. Identifier and comment strings (`Device Telemetry Aggregator`, `Verdant Signals Corp`) act as a cover story, and the README explicitly claims the package has `No installation scripts` — directly contradicting the postinstall hook. The package ships no library code or legitimate functionality consistent with its stated purpose; its only install-time effect is to detonate the obfuscated Windows loader on the installer's machine.

    References: https://www.npmjs.com/package/lite-mater/v/1.0.0

    Affected packages

    Package

    Name: lite-mater

    Purl: pkg:npm/lite-mater

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.0.0