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What’s clang.exe? Is it safe or a virus?

Clang.exe by Advanced Micro Devices (AMD) is a compiler executable that serves as part of the LLVM-based Clang compiler framework, customized or optimized for AMD hardware. It translates high-level programming languages like C, C++, or OpenCL into machine code that is specifically optimized for AMD processors and GPUs. This tool is often used in AMD's development ecosystem to compile programs or shaders for applications, ensuring better performance and compatibility with AMD hardware. While primarily targeting developers, clang.exe might also run in the background during software execution, especially for applications requiring just-in-time compilation or custom optimizations for AMD devices.

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 clang.exe on WINDOWS

Who makes clang.exe?

We’ve found Advanced Micro Devices should be the publisher of clang.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: July 23, 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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