@years20/n8n-nodes-utils-helper-a

{"modified":"2026-08-12T15:10:14Z","published":"2026-08-12T15:10:14Z","schema_version":"1.7.4","id":"MAL-2026-13909","summary":"Malicious code in @years20/n8n-nodes-utils-helper-a (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (53efd1db4158ab9b9fbc01983ff03019e4938eb54329876135b5eb4a0ba927bc)\nThe package's postinstall script (callback.js) and its main module (index.js, byte-identical to callback.js) execute on both `npm install` and `require()`. They shell out to collect `id`, `hostname`, WSL indicators, and the local SSH host-key fingerprint, base64-encode the recon output, and send it to a hardcoded endpoint at `https://jasabersama.id/portfolio-data.php` with `rejectUnauthorized: false`. The payload also decodes an embedded base64 OpenSSH ed25519 private key to `/tmp/pk` (chmod 600) and iterates common local account names (`devuser`, `ubuntu`, `runner`, `node`, `root`, `chris`, `user`) attempting SSH into `127.0.0.1:22495` and `127.0.0.1:22`, reporting successful logins back to the same external host. The exfil query string carries a URL-encoded shell command that the receiving PHP handler is expected to execute, indicating a server-side command channel. The trigger fires automatically at install time via `scripts.postinstall` and again whenever a consumer (e.g. n8n loading this custom node) imports the module.\n","affected":[{"package":{"ecosystem":"npm","name":"@years20/n8n-nodes-utils-helper-a"},"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":"8176be617df1750652d87e367cc3b6d871fbef43b371472f7976369db53db978","tlsh":"325198f851a0a53422b360b75dbadc15d5bffa02518addc8714d0b335fd6c9809336b8"},{"path":"index.js","sha256":"8176be617df1750652d87e367cc3b6d871fbef43b371472f7976369db53db978","tlsh":"325198f851a0a53422b360b75dbadc15d5bffa02518addc8714d0b335fd6c9809336b8"}],"package_integrity":[{"filename":"n8n-nodes-utils-helper-a-1.0.0.tgz","hashes":{"sha1":"b0bcc7f1bfcc7ff0cc5bb1abd35f662630f64754","sha512_sri":"sha512-O+WwRWRCaYi2LM8uABqD8heGHkeCBu5VyYcn6EI85QEZ3Y4k6dbe1TZboleAJz1H7a52+zqz5sk7FIvNkJhigA=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@years20/n8n-nodes-utils-helper-a/v/1.0.0"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-017598","import_time":"2026-08-12T15:26:13.151852404Z","modified_time":"2026-08-12T15:10:14Z","sha256":"53efd1db4158ab9b9fbc01983ff03019e4938eb54329876135b5eb4a0ba927bc","source":"amazon-inspector","versions":["1.0.0"]}]}}