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What’s dnunzip.exe (Info-ZIP's UnZip for Win32 console)? Is it safe or a virus?

The file `dnunzip.exe`, developed by Shanghai Changzhi Network Technology Co., Ltd., is a command-line utility based on Info-ZIP's UnZip for the Win32 console. It is designed to extract or decompress ZIP archive files on Windows operating systems. Using this tool, users can process ZIP files in a straightforward and lightweight manner through command-line instructions, making it suitable for tasks like batch processing or automating decompression tasks. This utility leverages the reliability of the Info-ZIP open-source library while serving as a simple, functional tool for managing compressed files in a non-graphical environment.

Researched by Carl @ SpyShelter Labs

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More about dnunzip.exe on WINDOWS

Who makes dnunzip.exe (Info-ZIP's UnZip for Win32 console)?

We’ve found Shanghai Changzhi Network Technology Co., Ltd. should be the publisher of dnunzip.exe.

How do we know? Our SpyShelter cybersecurity labs focuses on monitoring different types of Windows PC executables and their behaviors for our popular SpyShelter Antispyware software. Learn more about us, and how our cybersecurity team studies Windows PC executables/processes.

What does it mean if someone is the publisher of a PC .exe (executable or process)?

The publisher of an executable is the entity responsible for its distribution and authenticity. Most processes/executables on your PC should be signed. The signature on the executable should have been verified through a third party whose job it is to make sure the entity is who it says it is. Find an unsigned executable? You should consider scanning any completely unsigned .exe on your PC.

Last updated: March 13, 2025

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Our team at SpyShelter has been studying Windows PC executables for over 15 years, to help fight against spyware, malware, and other threats. SpyShelter has been featured in publications like The Register, PC Magazine, and many others. Now we’re working to share free, actionable, and easy to understand information about Windows executables (processes) with the world, to help as many people as possible keep their devices safe. Learn more about us on our "About SpyShelter” page.

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