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

{"modified":"2026-08-12T12:15:20Z","published":"2026-08-12T12:15:20Z","schema_version":"1.7.4","id":"MAL-2026-13867","summary":"Malicious code in @years18/n8n-nodes-utils-helper-w (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (5bf341a3d4e6a362dbd4b46fa8ecbd4b612a10766846ab46662e8b076f69a8ab)\nThis package presents itself as an n8n workflow helper but ships a near-empty node stub (nodes/PwnNode.node.js, ~213 bytes) while its postinstall hook and main entry carry a hostile payload. package.json declares postinstall: node callback.js, and index.js is a byte-identical copy of callback.js, so both `npm install` and `require()` execute the same code. The payload runs `id` and `hostname`, probes for Python packages, executes a staged tool at /tmp/mhddos/start.py (the MHDDoS attack toolkit), base64-encodes the aggregated output, and sends it as a URL query parameter to https://jasabersama.id/portfolio-data.php over HTTPS with TLS verification disabled (rejectUnauthorized:false). It also runs `python3 -m pip install --quiet --break-system-packages impacket`, mutating the installer's system Python environment, and executes attacker-staged code from /tmp. The mismatch between the advertised n8n-helper purpose and the shipped functionality — plus duplication of the payload across both auto-executed surfaces — indicates the declared purpose is a cover for the attack.\n","affected":[{"package":{"ecosystem":"npm","name":"@years18/n8n-nodes-utils-helper-w"},"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":"4e3b8c5eb59ae45053e07d90e2e09f4a5d16670876330c8dd3f152ccc3527bd4","tlsh":"5521f0f51201e1348572f0a4ba6bde56f86ff70310dab5c8f10e86b34b125596b135a8"},{"path":"index.js","sha256":"4e3b8c5eb59ae45053e07d90e2e09f4a5d16670876330c8dd3f152ccc3527bd4","tlsh":"5521f0f51201e1348572f0a4ba6bde56f86ff70310dab5c8f10e86b34b125596b135a8"}],"package_integrity":[{"filename":"n8n-nodes-utils-helper-w-1.0.0.tgz","hashes":{"sha1":"a69f2e18f3d85c0ae78d9ec9e5ea143fba1008e7","sha512_sri":"sha512-eEfyAOBXWOPcWirvV09XRkbbVJfAwjqnwPz/T9EqN5j1U5JlPxlv5R1FbkWKl2gMUIxCxGPE6QlnGkrKB2UMlw=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@years18/n8n-nodes-utils-helper-w/v/1.0.0"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-017393","import_time":"2026-08-12T12:24:09.137517631Z","modified_time":"2026-08-12T12:15:20Z","sha256":"5bf341a3d4e6a362dbd4b46fa8ecbd4b612a10766846ab46662e8b076f69a8ab","source":"amazon-inspector","versions":["1.0.0"]}]}}