mal-2026-16478

{
  "affected": [
    {
      "database_specific": {
        "cwes": [
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          }
        ],
        "indicators": {
          "evidence_files": [
            {
              "path": "index.js",
              "sha256": "6ff2d04134b8ce45ad5086c9818ff39def86396d581dbef1542a7a957209406d",
              "tlsh": "9ce0c0f022e0d1a01d3037c0c252ac1fd16bf16538a552a1b7ae01d4ca4243299f3e9c"
            }
          ],
          "package_integrity": [
            {
              "filename": "event-hunter-1.0.0.tgz",
              "hashes": {
                "sha1": "83ca86d9e43cf1dc8bcdad3be7dce43ec7dcff25",
                "sha512_sri": "sha512-fOARMhsP9kCI1GjXgZPEGJg194NiSSSqzElIlKRg8RRJ6XxSdU6JLdQaUKNWradPM7YEveEAtYg8yLOTplYRcg=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "event-hunter"
      },
      "versions": [
        "1.0.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-020494",
        "import_time": "2026-09-23T14:19:31.953567157Z",
        "modified_time": "2026-09-23T14:14:28Z",
        "sha256": "f94b74862f327effaa43c1d01c4fd769626f73214d0706b80fef8b8a395cc3e8",
        "source": "amazon-inspector",
        "versions": [
          "1.0.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (f94b74862f327effaa43c1d01c4fd769626f73214d0706b80fef8b8a395cc3e8)\nOn `npm install`, the declared postinstall hook runs `node index.js`, which reads `os.hostname()` and a timestamp, base64-encodes the JSON payload, and issues an HTTPS GET to `https://estimator-nemeses-unwatched.ngrok-free.dev/canary?d=<base64>`. The destination is a hardcoded ngrok tunnel unrelated to any registry or vendor infrastructure, and the beacon fires automatically without any caller action or opt-in. The package's own metadata describes it as a `Dependency Confusion to RCE` proof-of-concept, and the install-time callback carries the installer's internal hostname to an external third party.\n",
  "id": "MAL-2026-16478",
  "modified": "2026-09-23T14:14:28Z",
  "published": "2026-09-23T14:14:28Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/event-hunter/v/1.0.0"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in event-hunter (npm)"
}