Potential New Virus ???

You: I am running AV 2012 on my Windows7 laptop. I regularly synch with my iPhone. All of a sudden 100 Russian names (in Cyrillic) and phone numbers appeared in my iPhone contacts list.  Using Google search the names appear to be legitimate.  I am afraid this is a virus/trojan/etc. that will move from my iPhone to my computer when I synch.  Any and all help would be appreciated.