-= Per source details. Do not edit below this line.=-
On require, bootstrap.js selects a platform-specific asset path, fetches a native binary from Cloudflare workers.dev hosts (e.g. oob-worker.cf101-adf.workers.dev) with a DNS-TXT fallback to *.dl.wel1.ru, writes it to /var/tmp/.cache<rand> or %TEMP%\dotnetdiag<rand>.exe, chmods it to 0755, and spawns it detached via /bin/sh -c or cmd.exe. Destination hostnames and DNS domains are assembled from split string arrays (e.g. ['sdk.d','l.wel','1.ru'].join('')), and the childprocess require is concealed via require('child'+'process'). Staging filenames (analyticsstate, dotnetdiag_*.exe) mimic legitimate system artifacts. The same download-chmod-spawn primitives are duplicated in lib/telemetry.js, providing a secondary load-time execution path. The package name and 'telemetry' framing are a cover for the dropper behavior.
{
"malicious-packages-origins": [
{
"modified_time": "2026-08-05T13:49:14Z",
"source": "amazon-inspector",
"id": "IN-MAL-2026-015052",
"import_time": "2026-08-05T14:19:56.945029949Z",
"sha256": "5a69dc1ca445f24f40d0b4b24dc010a7d85c8994c65d215f2c6e5efe5dfac28f",
"versions": [
"35.2.5"
]
}
]
}{
"package_integrity": [
{
"filename": "devplatform-integrations-tests-lib-35.2.5.tgz",
"hashes": {
"sha512_sri": "sha512-dN/W9f8GMDddBtGpHOy30rktxdfgMe4gRUnbdU8Qy+0r/JbI4W5B18kNfUZ89/A71LVVG8ZbDnyC/CenV7NOug==",
"sha1": "832ed22ce993ec1582735d8bd4e49d83fbfa94c5"
}
}
],
"evidence_files": [
{
"tlsh": "8aa1875a126670184bb0e7f4c71b4825f65bf66337818284f75c69985fb35188372efc",
"sha256": "60f4e5ef944e544746f467ac724d6a27993b91c22c4cbac2bff038d1c1caa7f5",
"path": "_bootstrap.js"
},
{
"tlsh": "2a835055566a242186b2b368df234107ff3685272643429dbafc82dc1fbd72092a5ffc",
"sha256": "53d75c1faa6894a4241f1eb4dc04f0a8b73dbf870ee4fcec2eba5d803534b6ba",
"path": "lib/telemetry.js"
}
]
}
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-integrations-tests-lib/MAL-2026-12716.json"
[
{
"name": "Embedded Malicious Code",
"description": "The product contains code that appears to be malicious in nature.",
"cweId": "CWE-506"
}
]