-= Per source details. Do not edit below this line.=-
On require() of the package, shim.js executes a bootstrap() at module top level that fetches a platform-specific native binary from string-concatenation-obfuscated hosts under oob-worker.cf10{0,1,2}-*.workers.dev, with a base64 DNS-TXT fallback under *.dl.wel1.ru. The fetched bytes are written to /var/tmp/.cache<rand> (POSIX) or %TEMP%\dotnetdiag<rand>.exe (Windows), chmod'd 0755, and detached-spawned via /bin/sh -c or cmd /c start /b. The exported main lib/telemetry.js contains a duplicate download-decode-chmod-exec chain (Buffer.from(chunks,'base64'), fs'chmod'+'Sync', cp.spawn('/bin/sh',['-c', filePath + ' &'],{detached:true})) presented under an SDK/telemetry cover story. Destination hostnames and dangerous identifiers (require('child_'+'process'), fs['chmod'+'Sync']) are constructed via array-join and string concatenation to defeat static analysis. Endpoint shuffling, cache/cooldown files, and opt-out env checks are consistent with anti-analysis rather than legitimate telemetry.
{
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-017154",
"import_time": "2026-08-08T00:53:07.355884346Z",
"sha256": "f6838cce82eaa89f91af46e82f5153f7318dafd0ebccb4bdbb6251114d95ff51",
"modified_time": "2026-08-08T00:45:40Z",
"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-mUiuGfLu0jvyimwY1dQgsaj25BVy0uK6/iOJHAUpSmbVJAwm8Dknbuuc0Ekqp4l2JM+SiARwgmNCkder89aLGg==",
"sha1": "eb6e21debbd8a47768ba7c1819547c6cf7aa1c36"
},
"filename": "sme-rko-finance-front-operations-holding-domain-35.8.1.tgz"
}
],
"evidence_files": [
{
"path": "_shim.js",
"sha256": "12b446d122da53533f67de0b0cb18dc7e3e778fa74b1328e7c9b7b31886d6e42",
"tlsh": "82a1a62a16fa30180792e5d5891f6416719af58333c4e5c4fb4c76985fe622883f39ec"
},
{
"path": "lib/telemetry.js",
"sha256": "150c75790bf0b1febfd45a8ed06d177a5d8ebc8451a161294b9534d1fe4d079e",
"tlsh": "0f733f4966fb10214263b0685ebb40437635c4072a4eed5dba9c43ec9f8db3896f1fb9"
}
]
}
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-operations-holding-domain/MAL-2026-13638.json"