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MAL-2026-16478

Malicious code in event-hunter (npm)

Details

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

## Source: amazon-inspector (f94b74862f327effaa43c1d01c4fd769626f73214d0706b80fef8b8a395cc3e8) On `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.

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Affected packages

npm/event-hunter

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References