KES is designed for desktop systems, not servers - it works on servers, but it’s not a good idea always use the correct / intended solution for your problem https://support.kaspersky.com/ksws11#downloads did you do a full scan on your server? did you remove found files? did you check the microsoft article and checked your server for indicatrors of being hacked? is your server patched completely? for further / better qualified help i suggest opening a support ticket with kaspersky