Malicious Code Detected in zmaker Package: Data Exfiltration Threat
Summary
MAL-2025-191943: Malicious code in zmaker (PyPI). Affected versions are not published. No fix is published. How to fix ↓
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Background
The zmaker package, available on PyPI, is designed to facilitate the creation of archives from collected files. It is part of a larger campaign that includes several interconnected packages aimed at exfiltrating user data from the Telegram Desktop application. The package's functionality, while seemingly benign, is compromised by the inclusion of malicious code that exploits its features for harmful purposes.
Vulnerability Detail
The vulnerability in the zmaker package stems from its association with a malicious campaign orchestrated by the source kam193. This campaign consists of multiple packages, including zscaner, reqinstall, and zsender, which collectively target the Telegram Desktop folder to archive and exfiltrate user data. The malicious code is intentionally embedded within the package, allowing it to execute automatically upon import, leading to unauthorized data access and potential privacy breaches.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
pip uninstall zmakerIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can avoid using the zmaker package and its dependencies until a secure version is released. Additionally, consider monitoring your system for any unauthorized access or data exfiltration attempts.
Conclusion
The zmaker package has been identified as part of a malicious campaign that targets user data from the Telegram Desktop application. Users are advised to update or remove the package to safeguard their information. Utilizing tools like Vulert can help in monitoring for such vulnerabilities in the future.
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FAQ
The zmaker package is a Python library designed to create archives from collected files, but it has been compromised with malicious code.
The vulnerability allows malicious actors to exfiltrate sensitive user data from the Telegram Desktop application without user consent.
You should immediately update the package to the latest version or remove it from your environment to prevent potential data breaches.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. You can check your application against known vulnerabilities using the Vulert playground without signing up.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to install any software.
References
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