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.
Trojan-Downloader.VB.ajz is a Trojan designed to infiltrate your computer and open a conduit by which hundreds of adware and spyware can be downloaded and installed to your system. Trojan-Downloader.VB.ajz opens up a huge security loophole on your machine and is a very dangerous threat to the security of your personal and financial data. The additional adware downloaded through Trojan-Downloader.VB.ajz will also generate large numbers of popup adverts.
Technical details (How to remove Trojan-Downloader.VB.ajz(pop up))