Malicious Code Injection in different_monkey_z3n Package: A Threat to npm Ecosystem
Summary
MAL-2025-101557: Malicious code in different_monkey_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The different_monkey_z3n package is part of the npm ecosystem, which is widely used for JavaScript package management. This package, like many others, is intended to facilitate the development and distribution of JavaScript applications. However, it has been identified as part of a malicious campaign that exploits npm's publishing capabilities to inflate developer reputation scores through the automatic generation of derivative packages.
Vulnerability Detail
The vulnerability in the different_monkey_z3n package stems from its association with a malicious campaign that modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior is designed to pollute the npm registry with numerous derivative packages, potentially leading to security risks for developers who unknowingly install these compromised packages. The origin of this issue is linked to the tea.xyz token reward campaign, which incentivizes the creation of such malicious packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall different_monkey_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can remove the different_monkey_z3n package from your project by executing the following command: npm uninstall different_monkey_z3n. This will prevent any potential malicious code from executing in your application.
Conclusion
The different_monkey_z3n package poses a significant security risk due to its malicious code designed to manipulate the npm registry. It is crucial for developers to stay vigilant, regularly update their packages, and utilize tools like Vulert to monitor for vulnerabilities. By taking proactive measures, developers can safeguard their applications against such threats.
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FAQ
The different_monkey_z3n package is a JavaScript package available on npm, which has been identified as part of a malicious campaign to inflate developer reputation scores.
If your application uses the different_monkey_z3n package, it may be at risk of incorporating malicious code that can compromise your application's integrity and security.
If you have installed the different_monkey_z3n package, you should uninstall it immediately and check for any other affected packages in your project.
You can use tools like Vulert, which monitors your package-lock.json file for open-source vulnerabilities in real-time, alerting you to any issues without requiring code access or installation.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
