What’s Zalo.exe (Zalo)? Is it safe or a virus?

Zalo.exe is the main executable for Zalo, a messaging and VoIP application developed by VNG Corporation, a Vietnamese tech company. Zalo is widely used in Vietnam for personal and professional communication, offering features like text messaging, voice and video calls, and file sharing. The desktop version, known as Zalo PC, allows users to access these services on Windows and macOS platforms.

You might have Zalo.exe on your machine if you've installed Zalo PC to communicate with contacts who use the app, particularly if you have connections in Vietnam where the app is prevalent.

Below are 4 simple steps you can take to see if the Zalo.exe process is safe or malware.

Researched by Laura @ SpyShelter Labs

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A Trojan is a harmful software that pretends to be a legitimate program or file to deceive users into downloading it. It can steal personal information, damage files, or give hackers control over the infected device.

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More about Zalo.exe on WINDOWS

Who makes Zalo.exe (Zalo)?

We’ve found VNG CORPORATION should be the publisher of Zalo.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: May 5, 2025

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