OSArmor v1.4

Monitor and block suspicious processes behaviors to prevent infections by malware, ransomware, and other threats. This tool analyzes parent processes and prevents, for example, MS Word from running cmd.exe or powershell.exe, it prevents ransomware from deleting shadow copies of files via vssadmin.exe, it blocks processes with double file extensions (i.e invoice.pdf.exe), it blocks USB-spreading malware, and much more. It is lightweight, zero-configuration and runs in the background protecting your system.

http://www.novirusthanks.org/products/osarmor/ 

An Additional Layer of Defense

This smart security application focuses on preventing a malware infection by applying smart and intelligent rules that block bad processes behaviors. This tool can block threats not detected by your installed security solution. Add to your system an additional layer of defense to prevent infections by malware and ransomware!
You don't have to configure anything, just install it and forget about it. We have already added more than 60 smart policies to improve your system security with this security application.

Hi SA,

I've been running OSA since the OSA beta was Secure Boot compatible and while I've found a few bugs that the dev promptly fixed ASAP, none related to Norton. 

Cheers!

I've been using this little program for a week now on my Dell laptop. Runs smooth as silk alongside Norton NSBU, no issue from Core as well. Customizable as well to suit your needs.

Cheers