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.
VirTool.UPXScrambler is a tool, which is used mostly by malware and virus creators. They use it to scramble UPX (Ultimate Packer for eXecutables) in order to delude various anti-virus applications.
Technical details (How to remove VirTool.UPXScrambler(pop up))