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

{"modified":"2026-08-12T12:15:35Z","published":"2026-08-12T12:15:35Z","schema_version":"1.7.4","id":"MAL-2026-13865","summary":"Malicious code in @years18/n8n-nodes-utils-helper-u (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (2e6a7fb247eadeb1f59c123721fdc49078bb1b723f80ed10f2a29c1c04eb04df)\nThe package's postinstall script (duplicated as the main module) runs unconditionally on npm install. It executes `id` and `hostname`, base64-encodes the output, and transmits it as a query-string parameter to a hardcoded HTTPS endpoint at jasabersama.id/portfolio-data.php with TLS certificate validation explicitly disabled (rejectUnauthorized: false). The same lifecycle hook installs the Python `impacket` package system-wide via `pip --break-system-packages` and invokes `/tmp/mhddos/start.py`, an MHDDoS attack launcher, weaponizing the installer host for outbound denial-of-service activity. The URL also carries a `c=` parameter conveying a shell command that decodes attacker-controlled bytes into `/tmp/n8n_rce_result.txt`, providing a command-staging channel back to the same remote endpoint.\n","affected":[{"package":{"ecosystem":"npm","name":"@years18/n8n-nodes-utils-helper-u"},"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"}],"package_integrity":[{"filename":"n8n-nodes-utils-helper-u-1.0.0.tgz","hashes":{"sha1":"604b1a0744e6c12dbe736c4b8965a0bf0f8143c4","sha512_sri":"sha512-DRCoPFry1IGLjuiWV1pVwPBHm4WADYJw2fvwPPvo6VKKt6lknunjyyWOEpM8UCSezDc76hKNuvmXKgh+ibit5w=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@years18/n8n-nodes-utils-helper-u/v/1.0.0"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-017395","import_time":"2026-08-12T12:24:09.362214915Z","modified_time":"2026-08-12T12:15:35Z","sha256":"2e6a7fb247eadeb1f59c123721fdc49078bb1b723f80ed10f2a29c1c04eb04df","source":"amazon-inspector","versions":["1.0.0"]}]}}