ekrn.exe is a program which is most likely legit. So, if ekrn.exe is on your system, it is most likely ok, and will NOT be a cause for concern. Even if your system is clean, it is still recommended to purchase a well-known antivirus with a good detection rate, in order to yourself yourself against threats.
This program is usually stored in C:\Program Files\ESET\ESET Security\ekrn.exe.
The MD5 fingerprint for this file is 5b11087e947af96ffee2126694a0c553.
This program is a Windows service. This means it operates on your PC in background, usually without showing anything to you. Most Windows services are legit programs, which provide useful functions to other programs or to Windows in general.
This executable uses the Internet to communicate. In this day and age this is quite normal. For example, most of the apps on your computer check for updates. In order to do this, Internet communications are required.
This application runs in 32-bit mode. It does not exploit the full set of features of modern computer CPUs. This ordinarily happens because the makers did not upgrade it to 64-bit code.
The description extracted from the file is ESET Service.
File version 10.3.376.0.
Copyright notice Copyright (c) ESET, spol. s r.o. 1992-2018. All rights reserved..
Some dangerous functions of the Operating System appear to be used, such as functions for tapping the keyboard. We advise you to read more about this program.
ekrn.exe has a digital signature. Nowadays the large majority of serious software applications are digitally signed.
The digital signature extracted from ekrn.exe is valid. This is excellent.
Digital certificate name: ESET, spol. s r.o.
Certificate's issuer name: VeriSign Class 3 Code Signing 2010 CA
It has an uninstall string in registry, which is good. si are uninstall.