Eddy
2
1st one is also known as Downloader.Dyfuca, TrojanDownloader.Win32.Dyfuca.
2nd one you mentioned is called Ncase Spy.
Both are spy-/addware. You can remove them by running progs like Ad-Aware (www.lavasoftusa.com) Spybot s&d (security.kolla.de) TheCleaner (www.moosoft.com) CwSchredder and Hijackthis (http://www.spywareinfo.com/~merijn/downloads.html)
I suggest you get the 1st two I mentioned. Update their databases and run them. Then reboot and see if the problem is solved.
If not try the others.