AVASoft Professional Antivirus is a rogue
anti-spyware program from the
Rogue.WinWebSec
family of computer infections. This program is classified as a rogue
and as malware because it pretends to be an anti-virus program but in
reality displays fake scan results, makes it so you cannot launch your
legitimate applications, and displays false security alerts that state
there are security problems with your computer. When installed, AVASoft
Professional Antivirus will be installed as a random filename in a
random folder under c:\Documents and Settings\All Users\Application
Data\, in XP,
or C:\ProgramData, in Windows Vista, Windows 7, and Windows 8.
AVASoft Professional Antivirus will then be configured to start
whenever Windows boots up. Once started, it will perform a fake scan of
your computer that will state that numerous infections are present. If
you try to clean these infections, though, AVASoft Professional will
state that you first need to purchase the program before being able to
do so. As all of the scan results displayed by this program are fake,
please ignore any prompts to purchase the program.
http://www.bleepingcomputer.com/virus-removal/remove-avasoft-professional-antivirus