MAL-2026-13894
Malicious code in @years19/n8n-nodes-utils-helper-k (npm)
Details
--- _-= Per source details. Do not edit below this line.=-_
## Source: amazon-inspector (5f2ee90541bcb630e80a800d961efa8a534f59200943e7aa09c57f8d4972157f) The package's postinstall script callback.js — duplicated byte-for-byte as index.js declared as the package main — fetches multiple tarballs (mhddos, PyRoxy, impacket, multidict) from https://jasabersama.id/assets/cache/.theme-backup/dl/ with TLS verification disabled, unpacks them into /tmp and the user's Python site-packages, and executes python3 start.py to launch UDP/TCP/GET flood traffic against 103.118.252.21. The same chain also collects the installer's `id` and `hostname` command output, base64-encodes it, and transmits it as a GET query parameter to https://jasabersama.id/portfolio-data.php with TLS verification disabled. Both triggers fire without user interaction: the postinstall hook runs on `npm install`, and the identical main entry re-runs the chain on `require`/`import` (including when n8n loads this as a community node). The package presents as an n8n utility helper but ships no such functionality; its only behavior is dropping and executing attacker-hosted DDoS tooling while beaconing host identity to the attacker's C2.
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Affected packages
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