MAL-2026-12842

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bigops-telephony-ui/MAL-2026-12842.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12842
Aliases
  • GHSA-wvf3-gj85-q2m7
Published
2026-08-05T15:01:34Z
Modified
2026-08-06T01:19:59.410457868Z
Summary
Malicious code in bigops-telephony-ui (npm)
Details

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

Source: amazon-inspector (93b10fc5eff860f82de5bc03b910dbe2b96b06d54c22741cbb593b007dd9ee38)

On require of the package, shim.js downloads a platform-specific executable over HTTPS from string-concatenated hostnames (oob-worker.cf100-416.workers.dev, oob-worker.cf101-adfs.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS-TXT chunked fallback to sdk.dl.wel1.ru and sibling *.dl.wel1.ru subdomains. The retrieved bytes are written to /var/tmp/.cache<hex> on Unix or %TEMP%\dotnetdiag<hex>.exe on Windows, chmod 0755, and spawned detached via spawn("/bin/sh", ["-c",...]) or spawn("cmd",...). Host strings and the require("child_process") / fs.chmodSync API names are reassembled at runtime via array.join("") to defeat static inspection. The advertised purpose is a React UI component library; nothing about the fetched binary, the decoy filenames, or the anonymous Cloudflare Workers / DNS-fallback delivery matches that stated purpose.

Source: ghsa-malware (a0173df9419add73e012225d6d5d4c29764cb8e0818ead86e8dde7b1c56430d9)

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-08-05T15:19:56.772924065Z",
            "sha256": "93b10fc5eff860f82de5bc03b910dbe2b96b06d54c22741cbb593b007dd9ee38",
            "modified_time": "2026-08-05T15:01:34Z",
            "id": "IN-MAL-2026-015538",
            "versions": [
                "35.7.3"
            ],
            "source": "amazon-inspector"
        },
        {
            "import_time": "2026-08-06T00:58:53.473795793Z",
            "modified_time": "2026-08-05T18:42:21Z",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "id": "GHSA-wvf3-gj85-q2m7",
            "sha256": "a0173df9419add73e012225d6d5d4c29764cb8e0818ead86e8dde7b1c56430d9",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / bigops-telephony-ui

Package

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

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

35.*
35.7.3

Database specific

cwes 
[
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    },
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-OvtnCDQofEE/8nTXw4ChU7KqZIGMmb58E9gIGL6V3B15+z/nJ899qeatCNJi+hkNCU3aw3bVvK/W3krPg6PwcA==",
                "sha1": "02de546f45d591e1811c4a5fcefbb0e2b0cb0efa"
            },
            "filename": "bigops-telephony-ui-35.7.3.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_shim.js",
            "sha256": "bfa372ca88d47c7f5aa03ed0430bf22c5217fa4eb690e631851ce90e90b72780",
            "tlsh": "19a1a86a056630184bb0d7e4c717581af55bf76373809694fb9ca9980fb222483f2efc"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bigops-telephony-ui/MAL-2026-12842.json"