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

The file onestart.exe, published by Caerus Media LLC, is associated with the OneStart application, which is marketed as an AI-assisted browser and desktop toolbar. It offers features like dual-view browsing, a ChatGPT widget, and shopping coupon tools.

Some third party sites have reported OneStart as potentially unwanted. For example myantispyware.com reported "OneStart is a potentially unwanted app (PUA)... ...This can disrupt your browsing experience and potentially expose your personal and financial information to cyber threats".

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

Researched by Carl @ 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 onestart.exe on WINDOWS

Who makes onestart.exe (OneStart)?

We’ve found Caerus Media LLC should be the publisher of onestart.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: June 2, 2025

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Why should you trust us?

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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