MAL-2026-13079

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/boxy-scroll-providers/MAL-2026-13079.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13079
Published
2026-08-05T14:26:28Z
Modified
2026-08-05T15:52:12Z
Summary
Malicious code in boxy-scroll-providers (npm)
Details

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

Source: amazon-inspector (c713e8e4ae3018f2614b7185c98b1f86dffcb684387e6a454d30a2c6eb8b89db)

On require() of boxy-scroll-providers, index.js loads bootstrap.js which selects an OS-specific endpoint, downloads an opaque binary from obfuscated Cloudflare Workers hosts (oob-worker.cf10{0,1,2,3}-*.workers.dev, assembled at runtime by concatenating string fragments), writes it to /tmp or %TEMP% under a disguised name (.cache on Unix, dotnet_diag_.exe on Windows), chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe /c start. When HTTPS retrieval fails, _bootstrap.js falls back to a DNS TXT-record covert channel: it queries c. for a chunk count and then reassembles a base64-encoded payload from numbered subdomains of sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. A state file throttles re-execution across installs. Destination hostnames and file names are obfuscated to evade static inspection.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-015301",
            "import_time": "2026-08-05T15:19:43.484841903Z",
            "modified_time": "2026-08-05T14:26:28Z",
            "sha256": "c713e8e4ae3018f2614b7185c98b1f86dffcb684387e6a454d30a2c6eb8b89db",
            "source": "amazon-inspector",
            "versions": [
                "35.5.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / boxy-scroll-providers

Package

Name
boxy-scroll-providers
View open source insights on deps.dev
Purl
pkg:npm/boxy-scroll-providers

Affected ranges

Affected versions

35.*
35.5.1

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "_bootstrap.js",
            "sha256": "ea0eb9101bd8e3546a94cfc3b7ef50c56f64cb6ff44deb370dd463e5bc1c458b",
            "tlsh": "d7a1a65606a670184bb0ebf4cb1b4819f65bf6633681d1d8fb5c69984f7212483b2efc"
        }
    ],
    "package_integrity": [
        {
            "filename": "boxy-scroll-providers-35.5.1.tgz",
            "hashes": {
                "sha1": "545e1d44190f707ff145321271c6e420911143bf",
                "sha512_sri": "sha512-u2LzEhrflnEO8ZV9bY81l51CI0lq1m83WdkXEbU8qpAxnenrdYCyhK1ft7tp0FGWmMmtjfT+PbyUMy42DZI3wg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/boxy-scroll-providers/MAL-2026-13079.json"