MAL-2026-13181

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-scroll/MAL-2026-13181.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13181
Published
2026-08-05T15:10:54Z
Modified
2026-08-05T15:53:01.457183887Z
Summary
Malicious code in dolyame-ui-scroll (npm)
Details

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

Source: amazon-inspector (a91813719fa2a9e32f75eb75dfa1774f222790b2134366fb99fb27114ab4b247)

On require() of the package main, init.js selects a platform-specific asset and downloads an opaque binary over HTTPS from a rotating set of author-controlled 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). Destination hostnames are reconstructed at runtime via array-join string splitting to defeat static inspection. The downloaded bytes are written to /tmp or %TEMP% under a disguised name (.cache<hex> on POSIX, dotnetdiag<hex>.exe on Windows), chmod 755'd on POSIX, and executed detached via spawn('/bin/sh','-c',...) or spawn('cmd', ['/c','start',...]). If HTTPS retrieval fails, the code falls back to a DNS-TXT covert channel against *.dl.wel1.ru subdomains (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru), reassembles a base64-chunked payload from TXT records, and executes the reconstructed binary. No signature or hash verification is performed, and the fetch-and-execute behavior is unrelated to the package's stated UI-components purpose.

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-08-05T15:10:54Z",
            "id": "IN-MAL-2026-015597",
            "import_time": "2026-08-05T15:19:59.702370905Z",
            "versions": [
                "35.4.3"
            ],
            "source": "amazon-inspector",
            "sha256": "a91813719fa2a9e32f75eb75dfa1774f222790b2134366fb99fb27114ab4b247"
        }
    ]
}
References
Credits

Affected packages

npm / dolyame-ui-scroll

Package

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

Affected ranges

Affected versions

35.*
35.4.3

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-Jxn31dRkcaFASjF8vQ9GXdtE1yKkwuXziwLxi8NV8nzCXlJRqyRMD0xM5jPpaNx3qMmYAbo86BJxdl1xb08uoA==",
                "sha1": "00b3455b353ba556bb61944aa812686866472828"
            },
            "filename": "dolyame-ui-scroll-35.4.3.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_init.js",
            "tlsh": "a9b1a66a127670098bb0dbe48b1b5415f6aaf6a333809184fb5c65944f7716883b2efc",
            "sha256": "ad830194c1b1edddcadd777e3e44eea0538436d2f643ebcb264a16c410a5015b"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-scroll/MAL-2026-13181.json"