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.
Email-Worm.Agent.l is designed to spread through computer networks by exploiting security holes on machines connected to the Internet. Once it is executed on your machine, Email-Worm.Agent.l will continue to spread itself by sending its copies to email addresses gathered from your machine. On occasion Email-Worm.Agent.l may download extra malware to your computer. Email-Worm.Agent.l can also cause a sluggish performance of your computer.
Technical details (How to remove Email-Worm.Agent.l(pop up))