TopAV is an adware spyware. It doesn't show commercial advertisements, but replaces the desktop wallpaper with a fake message saying that viruses have been detected. This message contains a link to topantiviruz.biz site. TopAV doesn't have any additional functions. The adware doesn't spread and must be manually installed. Its files are located in the default computer directory .
svchosts.exe
svchosts.dll
HKEY_CURRENT_USERSoftwareMicrosoftInternetExplorerDesktopGeneralWallpaper=percentSystemRootpercentWebdesktop.html3F245C2A-1558-3CCA-04A8-7AA23B60E40F