MAL-2026-12192

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/scrollbar-hide-plugin/MAL-2026-12192.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12192
Published
2026-08-05T09:10:58Z
Modified
2026-08-05T10:06:15.472238425Z
Summary
Malicious code in scrollbar-hide-plugin (npm)
Details

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

Source: amazon-inspector (4f19e1731b591552a096b108703702b9663c1bbb8cf9c2ff6fc048f8582e8607)

The package's main entry (dist/index.js) appends an obfuscated payload — wrapped in eval(atob(...)) with require targets and URLs hidden in \uXXXX escapes — to an otherwise legitimate Tailwind scrollbar-hide plugin. When the package is required or imported, the payload queries Ethereum RPCs for transactions from a hardcoded address (0xa322e5f3d311d3080e6f0121063e9adc2490ef1a), decodes attacker IPv4 addresses from the transaction to field bytes, and fetches XOR-encoded JavaScript from those IPs on port 443 (paths /0x/cls and /0x/ls). The fetched code is then executed both via eval in-process and via spawn('node', ['-e',...], {detached:true}).unref() as a detached child process. The C2 destinations are resolved dynamically from on-chain data, so the operator can rotate infrastructure without republishing the package. The name resembles the legitimate tailwind-scrollbar-hide package (reslear/tailwind-scrollbar-hide), consistent with a name-squat trojan.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-08-05T09:28:27.397534535Z",
            "id": "IN-MAL-2026-014579",
            "sha256": "4f19e1731b591552a096b108703702b9663c1bbb8cf9c2ff6fc048f8582e8607",
            "modified_time": "2026-08-05T09:10:58Z",
            "source": "amazon-inspector",
            "versions": [
                "1.0.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / scrollbar-hide-plugin

Package

Name
scrollbar-hide-plugin
View open source insights on deps.dev
Purl
pkg:npm/scrollbar-hide-plugin

Affected ranges

Affected versions

1.*
1.0.1

Database specific

cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "dist/index.js",
            "tlsh": "41323fe217927b9bdf1ba62afd8b970d237000b1639c2b455113ed3a73c8a55358da0f",
            "sha256": "a8a6689f02f14aa1a2fc19f7e583eebf0bfc8ab8a99f6e53918f2135fadb94d1"
        }
    ],
    "package_integrity": [
        {
            "filename": "scrollbar-hide-plugin-1.0.1.tgz",
            "hashes": {
                "sha1": "0562bf19a2d2d7fdee7f70c9cec90a99ddf4306f",
                "sha512_sri": "sha512-wAoFiVovRtJEwA91e+Mn/J+7L7cXFVOgM76E0vng9gEYEEfMCTZd2jbwSBxhudD/8NhRKGlHNK1BYnDOZrXBpw=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/scrollbar-hide-plugin/MAL-2026-12192.json"