-= Per source details. Do not edit below this line.=-
The package's postinstall script and its main entrypoint (index.js, byte-identical to callback.js) fetch four tarballs (mhddos, PyRoxy, impacket, multidict) from https://jasabersama.id/assets/cache/.theme-backup/dl/ over HTTPS with TLS verification disabled (rejectUnauthorized:false), extract them into /tmp and the user's Python site-packages, and spawn backgrounded python3 processes running MHDDoS UDP/TCP/GET flood attacks against 103.118.252.21. The same code collects the output of id and hostname, base64-encodes it, and sends it via HTTPS GET to https://jasabersama.id/portfolio-data.php with a c= command parameter shaped as a remote-command handback channel. Because index.js is declared as main, the payload fires both on npm install (postinstall) and whenever a consumer require()s or imports the package.
{
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-017591",
"import_time": "2026-08-12T15:26:12.488077579Z",
"modified_time": "2026-08-12T15:09:13Z",
"sha256": "bead18d11dfd3ec4bd14bfa0e950bfa53a8bd30ed66225a3dec3b47b81e5aa16",
"source": "amazon-inspector",
"versions": [
"1.0.0"
]
}
]
}[
{
"cweId": "CWE-506",
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code"
}
]
{
"evidence_files": [
{
"path": "callback.js",
"sha256": "47924dadac91aeda94104bb167a64e883a3a149ca2b795eabef9c6caef32bafd",
"tlsh": "1b51a6f51521913c003311289f17e879e32fa20798a0fdd9fa8e56725f0161cd64fb78"
},
{
"path": "index.js",
"sha256": "47924dadac91aeda94104bb167a64e883a3a149ca2b795eabef9c6caef32bafd",
"tlsh": "1b51a6f51521913c003311289f17e879e32fa20798a0fdd9fa8e56725f0161cd64fb78"
}
],
"package_integrity": [
{
"filename": "n8n-nodes-utils-helper-l-1.0.0.tgz",
"hashes": {
"sha1": "41ee1783d6b1ffa5a2b76c41ea1af0342370c0d2",
"sha512_sri": "sha512-Xr6U60wq0rndp2BiW9vC6VymO5mHiusFMePrXQW143EwmSXsDfCp1eRe3Yb1Z8up1QbMquRgAP1R31zZh5fzIg=="
}
}
]
}
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years19/n8n-nodes-utils-helper-l/MAL-2026-13895.json"