Hope there is someone that speaks English!
Please, I need help! My brothers computer is infected with some WTLBUI.EXE trojan. Is there anyone that can tell me how to remove it? On english please

I searched on google.com but only results I could get were on German,actually every result had something to do with this forum, and frankly, I don't understand a thing you all write

Well, I understand something because I learned it at school a long time ago, but still, don't understand it fair enough to solve my problem. Please, anyone?! Thanks!
I tried to delete it manually, but I couldn't ... tried to scan it with all kind of programs and when I delete it or put it into quarantine, it comes back every time! Helllllllllp