Top 25 Spyware:
A program designed to retrieve and install additional files, when run. Most will be configured to retrieve from a designated web or FTP site.
Trojan.AF is a homepage and search page hijacker. Known to re-direct pages to various porn websites, lately targeting adultfriendfinder.com.
A trojan that annouces to the user that their PC is infected then suggests one of several rogue antispyware programs to remove the infection.