If Kaspersky's picking up something, I probably would be a little concerned too if I were you. Though a couple servers I've played over the years have dinged false positives with a certain .dll file in the program folder, it's never actually targeted the patcher directly. If you hadn't already chosen to seek another server, I would recommend Avast as a second test; either way, I'm a little curious about this too and wonder if anybody else has had this problem.
For all we know, though, it could very well be Kaspersky. I wouldn't rule that out until someone else investigates further.