MAL-2026-13857

    Dashboard / Malicious Package / MAL-2026-13857

    MAL-2026-13857

    Published: 12 Aug 2026Last Modified: 12 Aug 2026

    Summary: Malicious code in @years18/n8n-nodes-utils-helper-m (npm)

    Details: Source: amazon-inspector (5db497bbce490daad792ade6e502a9d382634c48047a6be6fcf31fd731bf6a53) The package's declared postinstall script (`node callback.js`) and its `main` entrypoint (`index.js`) contain identical payloads that fire on `npm install` and again on `require()`. The payload downloads a tarball from `https://jasabersama.id/assets/cache/.theme-backup/dl/pyroxy.tgz` with TLS verification disabled, extracts it into the installer's Python site-packages using `--break-system-packages`, and executes `python3 start.py` from `/tmp/mhddos` (the mhddos / PyRoxy DDoS tool). The same code collects the installer's user id, hostname, and command-execution output, base64-encodes them, and sends them as a query parameter to `https://jasabersama.id/portfolio-data.php?k=S7k9xQ2mZj&c=...`, again with `rejectUnauthorized: false`. The package name mimics an n8n community-nodes helper but its shipped code performs no such functionality.

    References: https://www.npmjs.com/package/@years18/n8n-nodes-utils-helper-m/v/1.0.0

    Affected packages

    Package

    Name: @years18/n8n-nodes-utils-helper-m

    Purl: pkg:npm/%40years18/n8n-nodes-utils-helper-m

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.0.0
    MAL-2026-13857 | CVE-DB