@years19/n8n-nodes-utils-helper-k

{"modified":"2026-08-12T15:09:21Z","published":"2026-08-12T15:09:21Z","schema_version":"1.7.4","id":"MAL-2026-13894","summary":"Malicious code in @years19/n8n-nodes-utils-helper-k (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (5f2ee90541bcb630e80a800d961efa8a534f59200943e7aa09c57f8d4972157f)\nThe 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.\n","affected":[{"package":{"ecosystem":"npm","name":"@years19/n8n-nodes-utils-helper-k"},"versions":["1.0.0"],"database_specific":{"cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}],"indicators":{"evidence_files":[{"path":"callback.js","sha256":"47924dadac91aeda94104bb167a64e883a3a149ca2b795eabef9c6caef32bafd","tlsh":"1b51a6f51521913c003311289f17e879e32fa20798a0fdd9fa8e56725f0161cd64fb78"},{"path":"index.js","sha256":"47924dadac91aeda94104bb167a64e883a3a149ca2b795eabef9c6caef32bafd","tlsh":"1b51a6f51521913c003311289f17e879e32fa20798a0fdd9fa8e56725f0161cd64fb78"}],"package_integrity":[{"filename":"n8n-nodes-utils-helper-k-1.0.0.tgz","hashes":{"sha1":"903f62ad8baf53c8dc2d629c12e586fea840762f","sha512_sri":"sha512-MIBuU2EoqpRA7f8yVgrlhoPK1BpkXWIRZeO8+dMifDjNRCIyTxF7PKNEhEag4TpM0oQKvqeypJSxS9o7QrQVPA=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@years19/n8n-nodes-utils-helper-k/v/1.0.0"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-017592","import_time":"2026-08-12T15:26:12.626836669Z","modified_time":"2026-08-12T15:09:21Z","sha256":"5f2ee90541bcb630e80a800d961efa8a534f59200943e7aa09c57f8d4972157f","source":"amazon-inspector","versions":["1.0.0"]}]}}