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.
Backdoor.Satan is a nasty backdoor Trojan designed to open a conduit by which a remote hacker could gain full control over your machine. Once executed, Backdoor.Satan will allow the hacker to connect to your PC and perform lots of malicious activities. The hacker then may steal your personal information, destroy your data or even perform a credit card fraud. In addition, Backdoor.Satan is designed to exploit vulnerabilities in several Windows programs.
Technical details (How to remove Backdoor.Satan(pop up))