event-hunter

{"modified":"2026-09-23T14:14:28Z","published":"2026-09-23T14:14:28Z","schema_version":"1.7.4","id":"MAL-2026-16478","summary":"Malicious code in event-hunter (npm)","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","affected":[{"package":{"ecosystem":"npm","name":"event-hunter"},"versions":["1.0.0"],"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=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/event-hunter/v/1.0.0"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"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"]}]}}