What’s wsl.exe (Windows Subsystem for Linux)? Is it safe or a virus?

wsl.exe, developed by Microsoft Corp., is the executable file for the "Windows Subsystem for Linux" (WSL).

WSL is a compatibility layer that enables users to run native Linux command-line tools directly on Windows. It allows users to access a Linux shell and execute command-line tools and applications without the need for a virtual machine or dual-boot setup. This integration of the two operating systems provides developers and system administrators with an efficient and streamlined environment for cross-platform development and troubleshooting. With WSL, users can take advantage of the flexibility and power of Linux while working within the Windows ecosystem.

Below are 4 simple steps you can take to see if the wsl.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 wsl.exe on WINDOWS

Who makes wsl.exe (Windows Subsystem for Linux)?

We’ve found Microsoft Corp. should be the publisher of wsl.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 6, 2024

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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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