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.
ASecureForum.com is a web browser hijacker that comes from Zlob.Trojan family. Once installed, Zlob.Trojan will generate fake security messages that your computer is in danger and with the help of ASecureForum.com hijacker, it will redirect your Home page to www.ASecureForum.com which promotes rogue anti-spyware software products.
Technical details (How to remove ASecureForum.com(pop up))