-= Per source details. Do not edit below this line.=-
The package's postinstall script setup.js selects a platform-specific asset path and fetches an executable from a list of Cloudflare Workers subdomains (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev) whose hostnames are reassembled at runtime from split-string arrays such as ["oob-wor","ker.cf","99-9b3.wor","kers",".dev"].join(""). A DNS-TXT-over-.well1.site fallback channel (tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, win.dl.well1.site) reconstructs a base64-encoded payload from numbered TXT records (c.<domain> for count, then i.<domain> chunks base64-decoded and concatenated). The fetched bytes are written to /tmp/.cache<hex> or %TEMP%\dotnetdiag<hex>.exe, chmod 0o755 on POSIX, and launched with execFile(fp, [], { detached: true, stdio: ["ignore", out, out] }); child.unref() — output redirected to /dev/null and the child detached from the parent. No hash or signature verification is performed and the payload's purpose is unrelated to the package's stated visual-components function. index.js additionally contains try { require("./setup"); } catch () {} at the bottom of the entrypoint, so requiring or importing beaver-ui-icon-lock re-runs the same fetch-and-execute chain (gated by a 6-hour stamp file) even when installs use --ignore-scripts. Cloudflare Workers subdomains and DNS-TXT-over-.well1.site are attacker-controlled distribution infrastructure with no relationship to the package's declared publisher or purpose.
{
"malicious-packages-origins": [
{
"import_time": "2026-08-05T09:28:13.816495452Z",
"source": "amazon-inspector",
"id": "IN-MAL-2026-014459",
"sha256": "dc953ba45a243565fdc2ac41c733bfe5e4d09e9b9362325d2f670b39d1f84618",
"modified_time": "2026-08-05T08:53:33Z",
"versions": [
"12.2.3"
]
},
{
"import_time": "2026-08-05T09:28:13.22622593Z",
"source": "amazon-inspector",
"id": "IN-MAL-2026-014456",
"versions": [
"34.8.3"
],
"modified_time": "2026-08-05T08:53:07Z",
"sha256": "e25d6e4259f8685805473a966f249a99e4883080f50396207f36f460bfeab073"
}
]
}{
"evidence_files": [
{
"tlsh": "17b1a4550afa71384392a1e8d92b5816b09fe5533284e990f34cb6985f97268c3b39fc",
"sha256": "8f0408a8a36dac6c84b61ce497abe4e97fbec7aa75120b387894e005dff29ac7",
"path": "setup.js"
},
{
"tlsh": "88f02b8515ebe87386b066e2de621082f66285254f4741547a8a60ef1eb0c140798eba",
"sha256": "3f688dd8dbcadbaff3d4d55f7d0cdaa520238821c5c084ceccc93def5db863b2",
"path": "index.js"
}
],
"package_integrity": [
{
"filename": "beaver-ui-icon-lock-34.8.3.tgz",
"hashes": {
"sha1": "68fa80a6f17d772458faf37d9c3b3914b6d583ae",
"sha512_sri": "sha512-IEPZwk+kRdgA5K28d/2oVxcgcYRgBuT+fPqjr9NqaAefJdhQyb4uycHIFhF2TyRF9wgrDOa4mwD9T+Godtv8YQ=="
}
}
]
}
[
{
"cweId": "CWE-506",
"name": "Embedded Malicious Code",
"description": "The product contains code that appears to be malicious in nature."
},
{
"cweId": "CWE-506",
"name": "Embedded Malicious Code",
"description": "The product contains code that appears to be malicious in nature."
}
]
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/beaver-ui-icon-lock/MAL-2026-12147.json"