Malicious code in tpproofkill (PyPI)

tpproofkill Updated 02 Oct 2025

Summary

25/02/2023
CRITICAL
No i
Critical
Not published

MAL-2023-7406: Malicious code in tpproofkill (PyPI). Affected versions are not published. No fix is published. How to fix ↓

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Background

The tpproofkill package is an open-source Python package available on PyPI. It is designed to provide functionality related to proof-of-work calculations. The package is commonly used in various applications that require proof-of-work mechanisms for security purposes. However, the package has been found to contain malicious code.

Vulnerability Detail

The tpproofkill package has been identified as containing malicious code introduced in version 0. This malicious code was discovered by the Checkmarx research team. The code is part of a larger campaign by the EsqueleSquad group, which has published nearly 6000 malicious PyPi and NPM packages. The malicious code in tpproofkill is capable of executing spyware and information-stealing malware. This poses a significant risk to any application that includes the affected package, as it can lead to unauthorized access to sensitive information and compromise the security of the system.

How To Fix

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

pip uninstall tpproofkill

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

There is no specific workaround for this vulnerability. The best course of action is to remove the affected package and replace it with a trusted alternative.

Conclusion

The tpproofkill package on PyPI has been found to contain malicious code, which can execute spyware and information-stealing malware. It is crucial to remove the affected package from your application and replace it with a trusted alternative. Regularly updating and reviewing the packages used in your application is essential to ensure the security of your system. For further support on vulnerability remediation, you can contact DevNack.com.

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FAQ

You can use the Vulert playground (https://vulert.com/scanner) to check if your application is affected by this vulnerability. Simply provide your Pipfile.lock file, and Vulert will analyze it for any open-source vulnerabilities, including the malicious code in tpproofkill.

The malicious code in tpproofkill can execute spyware and information-stealing malware. This can lead to unauthorized access to sensitive information, compromise the security of the system, and potentially result in data breaches or other malicious activities.

Yes, the recommended fix is to remove the tpproofkill package from your application and replace it with a trusted alternative. Regularly updating and reviewing the packages used in your application is also crucial to ensure they are free from any known vulnerabilities.

This vulnerability was discovered by the Checkmarx research team.

For further support on vulnerability remediation, you can contact info@devnack.com. They can provide guidance and assistance in addressing this vulnerability.

How To Fix

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

pip uninstall tpproofkill

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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