Info on Zlob here:

http://www.lavasoft.com/lavasoftnews/2006/09/hijacks.html

Technically, how are the virus writers able to alter the virus every few hours so that it evades detection, yet with the virus still retaining its unique ‘Zlobiness’? Why have so few AV’s got a generic detection for Zlob, and how has Avira managed to do it, I wonder?