How to delete com.kaspersky.kav.sysext.systemextension on macOS Monterey?

I am trying to completely remove Kaspersky Anti-Virus. I am down to one file that I can't delete - com.kaspersky.kav.sysext.systemextension. How can I get rid of it?

It shows up as a system extension under Privacy -> Full Disk Access. I try to remove it and it keeps coming back. It also shows up in the Activity Monitor Process List and reappears no matter how many times I quit the process.

I have also spent about an hour trying to delete the underlying file including:

• Finder Delete
• Finder Command-Delete

I always get the error - The operation can’t be completed because you don’t have permission to access some of the items.

I then tried to delete from Terminal using:

sudo rm -rf Contents

and it get ...

rm: Contents/CodeResources: Operation not permitted

rm: Contents/_CodeSignature/CodeResources: Operation not permitted

rm: Contents/_CodeSignature: Operation not permitted

rm: Contents/MacOS/com.kaspersky.kav.sysext: Operation not permitted

rm: Contents/MacOS: Operation not permitted

rm: Contents/embedded.provisionprofile: Operation not permitted

rm: Contents/Info.plist: Operation not permitted

rm: Contents: Operation not permitted