internat.exe is also a process which is registered as the Win32.Lydra.a information stealing Trojan. This Trojan allows attackers to access your computer, personal data and information. This process is a security risk and should be removed from your system.
Please see additional details regarding this process.
Non-system processes like internat.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you
check your registry to identify slowdown issues.