don't know where to go find help[ with backdoor trojan
it atacked my
C:\system32\xbvclnt.exe
Can anyone tell me how to remove?

Hi ther Eddie , welcome to PCHF.

Lets have a look what we can do here for you.

If you follow the instructions in the "Prework" link below and attach the 2 resulting log files to a post here then we'll sort that out in no time.