npm · Malicious package advisory
Malware@years18/n8n-nodes-utils-helper-r
MAL-2026-13862
Malicious code in @years18/n8n-nodes-utils-helper-r (npm)
Details
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (be4bb7a1bd57477bf3cbbb1ccc9b76a2ed8b96a8117e0a4cad882b76404c86fb) @years18/n8n-nodes-utils-helper-r ships a postinstall script that, on `npm install`, downloads a tarball from https://jasabersama.id/assets/cache/.theme-backup/dl/pyroxy-full.tgz over TLS with certificate verification disabled and extracts it into the installer's Python site-packages directory, then verifies the drop by executing `python3 start.py` from /tmp/mhddos. The dropped payload is the PyRoxy / MHDDOS DDoS attack framework. The same postinstall collects the output of `id` and `hostname`, base64-encodes the result, and sends it via HTTPS GET (certificate verification disabled) to jasabersama.id/portfolio-data.php with a hardcoded key parameter. The package presents itself as an n8n community utility node, but the delivered payload is unrelated offensive tooling.
Compromised versions (1)
- 1.0.0
Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.