MAL-2026-13890

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years19/n8n-nodes-utils-helper-g/MAL-2026-13890.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13890
Published
2026-08-12T15:10:30Z
Modified
2026-08-12T15:30:15.403131961Z
Summary
Malicious code in @years19/n8n-nodes-utils-helper-g (npm)
Details

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

Source: amazon-inspector (9ee748f84613cc36319702d58eb2ce50d87de1a1889a639d2004ddd03226bef7)

The package's postinstall script (callback.js) and its declared main entrypoint (index.js) contain byte-identical dropper code that runs on npm install and on require of the module. The code downloads multiple tarballs (mhddos.tgz, pyroxy-full.tgz, impacket.tgz, multidict) from https://jasabersama.id with TLS verification disabled (rejectUnauthorized:false), extracts them to /tmp/mhddos and the Python user-site directory, and invokes python3 start.py on the extracted payload. The same code collects the output of id and hostname along with execution results, base64-encodes the buffer, and transmits it via HTTPS GET to https://jasabersama.id/portfolio-data.php?k=S7k9xQ2mZj&c=<payload>. The fetched tooling (mhddos, PyRoxy, impacket) is offensive network-attack software staged and launched on the installer's host at install time.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017600",
            "import_time": "2026-08-12T15:26:13.498553541Z",
            "sha256": "9ee748f84613cc36319702d58eb2ce50d87de1a1889a639d2004ddd03226bef7",
            "modified_time": "2026-08-12T15:10:30Z",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / @years19/n8n-nodes-utils-helper-g

Package

Name
@years19/n8n-nodes-utils-helper-g
View open source insights on deps.dev
Purl
pkg:npm/%40years19/n8n-nodes-utils-helper-g

Affected ranges

Affected versions

1.*
1.0.0

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": "callback.js",
            "tlsh": "1151757a1660613d00336264af2bd92ae72ba20784d5b9c5f94c47b22b0152c4b5fb68",
            "sha256": "c1e80f3d731f7685f9a70744c906e55984f36d24980f132565822c64558c6262"
        },
        {
            "path": "index.js",
            "tlsh": "1151757a1660613d00336264af2bd92ae72ba20784d5b9c5f94c47b22b0152c4b5fb68",
            "sha256": "c1e80f3d731f7685f9a70744c906e55984f36d24980f132565822c64558c6262"
        }
    ],
    "package_integrity": [
        {
            "filename": "n8n-nodes-utils-helper-g-1.0.0.tgz",
            "hashes": {
                "sha512_sri": "sha512-SaJ7VhNL/HMtxLf84gGg+BaFz30b2gyGj4JowP3z3u1xJ3br2xzWZpd3BvI9cdBDdjVcNAOW/TtvxcdoQXGf8g==",
                "sha1": "bc982317c5b48bb4d8f3adb5823e7b1a94168cd1"
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years19/n8n-nodes-utils-helper-g/MAL-2026-13890.json"