Malicious Code Injection in external_mosquito-strongdev Package
Summary
MAL-2025-102420: Malicious code in external_mosquito-strongdev (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The external_mosquito-strongdev package is part of the npm ecosystem, which is widely used for JavaScript development. This package is associated with the tea.xyz token reward campaign, which has been linked to various malicious activities, including the automatic generation of derivative packages. The package's functionality is compromised due to its involvement in a scheme designed to inflate developer reputation scores through the creation of numerous fake packages.
Vulnerability Detail
The vulnerability originates from the malicious code embedded within the external_mosquito-strongdev package. This code modifies the package.json file to remove private flags, alters version numbers, and generates random package names. The malicious payload continuously republishes these variants to pollute the npm registry, potentially leading to reputation damage for developers and security risks for applications relying on these packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall external_mosquito-strongdevIf 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 avoid using the external_mosquito-strongdev package altogether and look for alternative packages that provide similar functionality without the associated risks.
Conclusion
The external_mosquito-strongdev package poses significant risks due to its malicious code that alters package configurations and floods the npm registry with fake packages. It is crucial for developers to remove this package and monitor their applications for vulnerabilities to maintain security.
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FAQ
It is an npm package linked to the tea.xyz token reward campaign, which has been found to contain malicious code.
The malicious code can modify your package.json file, remove private flags, and create numerous fake packages, potentially compromising your application's integrity.
You should uninstall the external_mosquito-strongdev package immediately and monitor your application for any unusual behavior.
Yes, you can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without any signup.
While removing the package mitigates the immediate risk, it is essential to regularly monitor your dependencies for vulnerabilities and consider using alternative packages.
