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What’s aspnetcore-runtime-x86.exe (Microsoft ASP.NET Core 9.0.0 - Shared Framework (x86))? Is it safe or a virus?

The `aspnetcore-runtime-x86.exe` file is an installer for the ASP.NET Core Runtime, a component developed by Microsoft that enables the execution of ASP.NET Core applications.

Specifically, the x86 version is designed for 32-bit systems. The runtime provides the core libraries and dependencies required to run applications built using the ASP.NET Core framework, such as web APIs, websites, and other server-side applications.

The version 9.0.0 suggests it is for a specific release of ASP.NET Core, supporting the .NET development platform. It does not include development tools, focusing solely on enabling production environments to run ASP.NET Core apps efficiently.

Researched by Carl @ SpyShelter Labs

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Who makes aspnetcore-runtime-x86.exe (Microsoft ASP.NET Core 9.0.0 - Shared Framework (x86))?

We’ve found Microsoft Corporation should be the publisher of aspnetcore-runtime-x86.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: April 8, 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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