MAL-2026-12773

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-spa-plugin-notifier/MAL-2026-12773.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12773
Published
2026-08-05T13:41:54Z
Modified
2026-08-05T14:37:04.255208211Z
Summary
Malicious code in devplatform-spa-plugin-notifier (npm)
Details

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (877337509f36ab52fcfb93d1dc48d77439a5154d077fc047b7263265cfb71468)

On module load, index.js requires bootstrap.js which selects a platform-specific asset, downloads an opaque binary from hardcoded Cloudflare Workers subdomains (oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS TXT chunked-base64 fallback via sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru, writes it to a disguised temp path (names such as dotnetdiag_* and.cache_*), chmods it 0755 on Unix, and spawns it detached via /bin/sh -c or cmd /c start. Hostnames are assembled at runtime by joining fragmented substrings to defeat string search, and telemetry-opt-out variable names (analytics_state, DISABLE_TELEMETRY) are used as cover. No hash or signature verification is performed, and the destinations bear no relationship to a 'spa plugin notifier'.

Database specific 
{
    "malicious-packages-origins": [
        {
            "source": "amazon-inspector",
            "modified_time": "2026-08-05T13:41:54Z",
            "sha256": "877337509f36ab52fcfb93d1dc48d77439a5154d077fc047b7263265cfb71468",
            "import_time": "2026-08-05T14:19:51.440535023Z",
            "id": "IN-MAL-2026-015002",
            "versions": [
                "35.5.7"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / devplatform-spa-plugin-notifier

Package

Name
devplatform-spa-plugin-notifier
View open source insights on deps.dev
Purl
pkg:npm/devplatform-spa-plugin-notifier

Affected ranges

Affected versions

35.*
35.5.7

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-spa-plugin-notifier/MAL-2026-12773.json"
indicators 
{
    "package_integrity": [
        {
            "filename": "devplatform-spa-plugin-notifier-35.5.7.tgz",
            "hashes": {
                "sha512_sri": "sha512-LF6/leo67xSAxINEUOjCRYRIZmK6kIFSUsD0FEo64MEwAZWQzkBrYxbVdp7Kbj/okLfbjXon4OtrkolH4e6aSw==",
                "sha1": "8339367682efc54145bd7fc446094c7f961d4438"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "92a1865a15a6701c8bb0d7e0c7175816f65af6633380c298f7ac59985f7312482b2efc",
            "sha256": "3440513ec885c8bc4f6f07684a62ef15f966260b038c0424e29eb35e5484e84c",
            "path": "_bootstrap.js"
        }
    ]
}
cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]