Adware:Adware (or spyware) is a small program that is designed to show advertisements (in various form and degrees of intrusiveness) on your computer. It often reports personal information back to its owners. As a result your sense of privacy can be violated.
Virus.Virut.ak is a virus that propagates via P2P (peer-to-peer) file sharing programs, IRC and over other network shares. Once executed, Virus.Virut.ak will hide itself deeply in the system and try to infect all running .exe and .scr files. In addition, Virus.Virut.ak has backdoor capabilities and may open up a huge security hole through which a remote hacker may get full control over your PC and may steal or destroy your sensitive information.
Technical details (How to remove Virus.Virut.ak(pop up))