-= Per source details. Do not edit below this line.=-
On require, index.js loads bridge.js which selects a platform-specific asset path (linuxx64, linuxarm64, darwin, win32), downloads bytes from a rotating set of Cloudflare Workers endpoints (oob-worker.cf100-416.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev) with a DNS-TXT discovery fallback under *.dl.wel1.ru, writes the payload under /var/tmp or the Windows TEMP directory using disguised names impersonating dotnetdiag and hidden dotfiles, chmods it to 0755, and detached-spawns it via /bin/sh -c or cmd.exe /c start /b. Hostnames and API names (child_process, chmodSync) are reconstructed at runtime from split-string fragments to evade static inspection. lib/telemetry.js contains a parallel dropper (base64 chunk assembly, split-property fs.chmodSync, cp.spawn of /bin/sh) reachable from the main entry, redundantly staging payload delivery. A filesystem stamp implements run-once deduplication.
{
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-017143",
"import_time": "2026-08-08T00:53:06.505529946Z",
"sha256": "b691054dd402370143740f95ea751e6f5c7caa51753e91ccc11fadabca90e637",
"modified_time": "2026-08-08T00:44:01Z",
"versions": [
"35.8.1"
],
"source": "amazon-inspector"
}
]
}[
{
"description": "The product contains code that appears to be malicious in nature.",
"cweId": "CWE-506",
"name": "Embedded Malicious Code"
}
]
{
"package_integrity": [
{
"hashes": {
"sha512_sri": "sha512-Hzk2pao5qy0cM3MrDWFX0Ud2aWN+GCyP1IXQmsgd0ZehOD6van8+TYN/YxQuHoQnqHyCdr3GVZQLCNTydx2qYQ==",
"sha1": "c9a48026daff19e24416450aa8babe4e90b15c2c"
},
"filename": "sme-rko-finance-front-payments-classic-payment-actions-operations-repeat-models-35.8.1.tgz"
}
],
"evidence_files": [
{
"path": "_bridge.js",
"sha256": "bd06c971ebea554ff40d450f83a0318c2006a6b8a85782d1903eeed2872edc35",
"tlsh": "dda1b64a26fb30180693b1d4851f4426b1aaf6433384d9d4fb4c66949fa627983f3afc"
},
{
"sha256": "f0ef9622311ba1dff987b237aaea820b27dfb12815c958eab6cf645d89c4cb5c",
"path": "lib/telemetry.js",
"tlsh": "ce733f4966fb10214263b0685fbb40437635c4072a4aed5dba9c43ec9f8db3896f1fb9"
}
]
}
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-payments-classic-payment-actions-operations-repeat-models/MAL-2026-13656.json"