Virus+scan,+malware+detectors+and+removers

=Virus Scanner= A type of antivirus program that searches a system for virus signatures that have attached to executable programs and applications such as e-mail clients. A virus scanner can either search all executables when a system is booted or scan a file only when a change is made to the file as viruses will change the data in a file. //(from Webopedia.com)//