Malicious Code Injection in valid_unicorn_z3n Package
Summary
MAL-2025-110326: Malicious code in valid_unicorn_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The valid_unicorn_z3n package is part of the npm ecosystem, typically used for various development tasks. However, it has been identified as part of a malicious campaign aimed at inflating developer reputation scores through the tea.xyz token reward system. This package is designed to automatically generate and publish derivative packages, which can lead to significant pollution of the npm registry.
Vulnerability Detail
The vulnerability stems from malicious code embedded within the valid_unicorn_z3n package. This code modifies the package.json file to remove private flags, alters version numbers, and generates random package names, primarily themed around Indonesian culture. The malicious payload continuously republishes these variants, compromising the integrity of the npm registry and potentially affecting developers who rely on these packages for legitimate purposes.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall valid_unicorn_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 avoid using the valid_unicorn_z3n package and look for alternative packages that provide similar functionality without the associated risks. Always verify the source and integrity of any package before including it in your project.
Conclusion
The valid_unicorn_z3n package poses a significant risk due to its embedded malicious code, which can compromise the integrity of your project and the npm registry. It is essential to uninstall this package and monitor your dependencies for similar vulnerabilities to maintain a secure development environment.
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FAQ
The valid_unicorn_z3n package is an npm package that has been identified as part of a malicious campaign aimed at inflating developer reputation scores.
The malicious code modifies your package.json file, removes private flags, and continuously republishes variants, which can lead to pollution of the npm registry and compromise your project's integrity.
You should uninstall the valid_unicorn_z3n package immediately using the command 'npm uninstall valid_unicorn_z3n' and check for any other affected packages.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time using just your package-lock.json file. You can check your application for vulnerabilities without any signup at the Vulert playground.
Always verify the source of packages, keep your dependencies updated, and utilize tools like Vulert to monitor for vulnerabilities in your projects.
