MAL-2026-13240

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bigops-products-insurance/MAL-2026-13240.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13240
Published
2026-08-05T15:35:38Z
Modified
2026-08-05T16:50:07.857241181Z
Summary
Malicious code in bigops-products-insurance (npm)
Details

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

Source: amazon-inspector (3f2dd9bdb83df26b3425759cb4579da8e3a2748a5c995370ce1095c6010abf3c)

On require, index.js loads ext.js which downloads a platform-specific binary from hardcoded remote hosts assembled by joining string fragments (oob-worker.cf10{0-3}-*.workers.dev and sdk/ext/pkg/net.dl.wel1.ru), with DNS TXT-record chunked base64 as a fallback delivery channel. The binary is written to /var/tmp or %TEMP% under disguised names (dotnetdiag<tag>.exe on Windows,.cache<tag> on Unix), chmodded 755, and executed detached via spawn('/bin/sh','-c',...) or spawn('cmd',...). Host strings are split into arrays and.join()'d at runtime to evade static matching, and telemetry-style env-var names (DISABLETELEMETRY, ANALYTICSOPT_OUT) frame the behavior as diagnostics. Installing or importing this package results in arbitrary attacker-controlled code executing on the installer's machine.

Database specific 
{
    "malicious-packages-origins": [
        {
            "source": "amazon-inspector",
            "modified_time": "2026-08-05T15:35:38Z",
            "id": "IN-MAL-2026-015758",
            "import_time": "2026-08-05T16:13:41.667227338Z",
            "sha256": "3f2dd9bdb83df26b3425759cb4579da8e3a2748a5c995370ce1095c6010abf3c",
            "versions": [
                "35.3.4"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bigops-products-insurance

Package

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

Affected ranges

Affected versions

35.*
35.3.4

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "bigops-products-insurance-35.3.4.tgz",
            "hashes": {
                "sha512_sri": "sha512-mPzZ2LtI+3fou3CYF0MFbZxPfYSiDlvMSFCchw5z70tlVFt86iW5FIW+SkWw0svUyJejXt29dkizQ3zgZGvt2w==",
                "sha1": "0fb9fd54f03840a8195d4f88b47da35b4e9dd358"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "b6a1a69a156a701847b09be4c71b4816f65bf6a33380c184fb5ca5981f7713483b2efc",
            "sha256": "3f6acc36c278d99a1e227e1e2c73f8e27e865c64cbbd1b801e2db43f7a61811b",
            "path": "_ext.js"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bigops-products-insurance/MAL-2026-13240.json"
cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]