Hi Lukx,
Sorry, can't help, but if it's any consolation, i'm having exactly the same problem.. Started yesterday the 8/2/06.. The process runs at startup and is called ##exmodulap.exe, where ## is a random 2 digit number. it sits there quietly for a while, then takes over cpu 100% until i kill it. All fine for about 1/2 an hour then another process appears with same name, just different numbers. I also have tried every spyware and bot search on the planet to no avail. There's nothing weird in the registry that i can find, or in msconfig startup...
if anybody has any help it would be greatly appreciated.. fingers crossed lukx..