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

Microsoft's ssh.exe is part of the Windows OS, and is safe to run on your PC. However, when checking our PCs here in our Austin, Texas SpyShelter cybersecurity lab, we didn't find ssh.exe running on any of them, unless it was actively being used.

If ssh.exe is running for no reason you may want to scan your PC with the free built in Windows Security antivirus, or take a look with our SpyShelter Antispyware app. So, what exactly does ssh.exe do, and why might I be concerned if it's launched without me doing so?

ssh.exe is a command-line tool provided by Microsoft Windows to facilitate secure communication through the Secure Shell (SSH) protocol. It allows users to securely connect to remote servers and execute commands, transfer files, and tunnel network connections. The SSH protocol encrypts the data transmitted over the network, providing a secure channel for remote access and management of systems. The ssh.exe tool enables users to authenticate themselves to the remote server using passwords or public/private key pairs, ensuring secure communication and access control.

It is an essential tool for system administrators and developers who need to manage remote servers and devices securely. However, if you aren't using SSH and it's running on your PC it may be worthwhile to investigate the issue further with a Windows Security Antivirus scan.

Researched by Carl @ SpyShelter Labs