Malicious Code Vulnerability in efhthrthrthregerht Package

efhthrthrthregerht Updated 23 Sep 2026

Summary

23/09/2026
CRITICAL
No i
Critical
Not published

MAL-2026-16436: Malicious code in efhthrthrthregerht (npm). Affects efhthrthrthregerht versions 99.9.9. No fix is published. How to fix ↓

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Background

The efhthrthrthregerht package is an npm package with no documented purpose, characterized by its random keyboard-mash name. It is designed to run a postinstall script that collects sensitive information from the user's environment. This package's behavior raises significant security concerns due to its potential for malicious exploitation.

Vulnerability Detail

The vulnerability originates from the package's postinstall hook, which executes index.js. This script collects the installer's OS username, current working directory, hostname, and local IPv4 address, then sends this information as JSON to a hardcoded URL on webhook.site. This behavior indicates the presence of embedded malicious code, posing risks such as unauthorized data collection and potential exploitation by malicious actors.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall efhthrthrthregerht

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

As a workaround, you can monitor your package dependencies and avoid using packages with suspicious names or behaviors. Additionally, consider using tools like Vulert to monitor your project for vulnerabilities. You can check if your application is affected by this vulnerability using the Vulert playground at https://vulert.com/scanner without any signup.

Conclusion

The efhthrthrthregerht package poses a significant security risk due to its malicious behavior of collecting and transmitting sensitive user information. It is crucial to remove this package from your project and utilize monitoring tools like Vulert to safeguard against future vulnerabilities.

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FAQ

The efhthrthrthregerht package is an npm package that appears to serve no legitimate purpose and is designed to execute malicious code during installation.

The vulnerability allows the package to collect sensitive information from your system and send it to an external server, potentially compromising your privacy and security.

No, there is no patched version available for this package. The best course of action is to uninstall it completely.

You can use tools like Vulert, which monitors your package-lock.json for open-source vulnerabilities in real-time. Visit https://vulert.com for more information.

If you have installed the efhthrthrthregerht package, you should uninstall it immediately using the command: npm uninstall efhthrthrthregerht.

Sponsored Lume, the Habilume companion Habilume Habit tracker with a companion that grows with you Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent. App Store Google Play

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall efhthrthrthregerht

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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