No doubt. When Spy Bot showed my system was clean, Spy Sweeper found about a half dozen pieces of spyware.
And the trial version of this one:
http://www.123renamer.com/spyware-removal-guide/download.htm
Got 81+ uglies that AdAware and Spybot and Spy Sweeper had all missed. GRRRR.
Ezula is bad news.