-= Per source details. Do not edit below this line.=-
streak-metricsa@1.0.0 presents itself as a calendar-day math helper but its main entry (dist/index.mjs, the default exports target) embeds a Linux x86-64 ELF binary as a base64-chunk array assigned to a variable named _. At module top level — reached on any import/require of the package — the chunks are joined via Buffer.concat and Buffer.from(b,'base64'), written to disk, chmod'd 0o755, and executed via node:childprocess. The dropped ELF's dynamic symbols include SSLconnect / SSLread / SSLwrite / TLSclientmethod, socket / getaddrinfo, dlopen / dlsym, popen, execl / execv, fork, pthread_create, kill, and mkdtemp — the shape of a TLS-based remote-command implant. The README describes the top-level behavior as a tiny startup self-check, which does not match a native binary drop-and-execute. Any consumer that imports streak-metricsa gains an executing native implant on the host with outbound TLS and shell-exec capability.
{
"malicious-packages-origins": [
{
"source": "amazon-inspector",
"modified_time": "2026-08-05T12:30:45Z",
"sha256": "a707525e88d0f5d3004f833b17a7544655da43715d9d7af3e6d635ff3a6801a9",
"id": "IN-MAL-2026-014685",
"versions": [
"1.0.0"
],
"import_time": "2026-08-05T13:08:37.241950865Z"
}
]
}[
{
"name": "Embedded Malicious Code",
"cweId": "CWE-506",
"description": "The product contains code that appears to be malicious in nature."
}
]
{
"package_integrity": [
{
"hashes": {
"sha512_sri": "sha512-mTMK+eEkmsTsA8iK+0s+x/kUEgCu9oaPzYCVurVI+a+qDB9d2iOYevPfzzx+zax2cwNGDoyOT1mlGIUNRXzxKQ==",
"sha1": "f3d2fdd62572fdc3c9fc3455a6ae6f066ace1446"
},
"filename": "streak-metricsa-1.0.0.tgz"
}
],
"evidence_files": [
{
"path": "dist/index.mjs",
"sha256": "398b69d55dcbaf72d383cda02bf91a1a669674174d582480711f5b46e04c2ab2",
"tlsh": "4c834bf29a863c8765b19d28d64138082d7c66832178d177fec863eba3e5250df5ecb4"
}
]
}
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/streak-metricsa/MAL-2026-12470.json"