@years18/n8n-nodes-utils-helper-c

{"modified":"2026-08-12T12:16:47Z","published":"2026-08-12T12:16:47Z","schema_version":"1.7.4","id":"MAL-2026-13849","summary":"Malicious code in @years18/n8n-nodes-utils-helper-c (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (55fa2e2abba500f0c2863993fb8d51c3363f22a3fa8917fdf73e4b2545b81ea6)\nOn `npm install`, the declared postinstall script `node callback.js` performs two hostile actions against the installer. First, it downloads a tarball from `https://jasabersama.id/assets/cache/.theme-backup/dl/mhddos.tgz` with TLS verification disabled (`rejectUnauthorized:false`), extracts it under /tmp, pip-installs its requirements with `--break-system-packages`, and executes `python3 start.py` — the archive name and structure correspond to the MHDDoS attack tool. Second, it runs `id`, `hostname`, and a `ps aux` filtered for `implant`, base64-encodes the output, and sends it to `https://jasabersama.id/portfolio-data.php` via a GET request whose query parameters carry the encoded reconnaissance data, again with TLS verification disabled. Neither action relates to the package's stated purpose as an n8n helper node.\n","affected":[{"package":{"ecosystem":"npm","name":"@years18/n8n-nodes-utils-helper-c"},"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":"cf6dab4edcb0ca23d800084d7fb1930d91ef9beee9368a6e859fe20c38950690","tlsh":"a84168b512629138912371a43f2bda1ff56bf00b4094bec8f64e47b3cf119185a677a9"}],"package_integrity":[{"filename":"n8n-nodes-utils-helper-c-1.0.0.tgz","hashes":{"sha1":"6cdcba101ae851b70eb4e5b66f8775277d466cc8","sha512_sri":"sha512-X4cz7qBQ5BzbtbUekgxhYpJfX2WXBwZ5SUcxiLV9qwvuiy0W5wjEDoMf8tJtTwpIur0TDD7jWY8eazY9n/54wA=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@years18/n8n-nodes-utils-helper-c/v/1.0.0"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-017403","import_time":"2026-08-12T12:24:10.231784667Z","modified_time":"2026-08-12T12:16:47Z","sha256":"55fa2e2abba500f0c2863993fb8d51c3363f22a3fa8917fdf73e4b2545b81ea6","source":"amazon-inspector","versions":["1.0.0"]}]}}