Here is a good description of that Worm:
http://www.sophos.com/virusinfo/analyses/w32kindala.htmlDid you try to delete the Virus in Safe Mode? Even Norton should be able to delete it than.
Or start the PC in safe mode and delete following Registry value: HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
SysService32 = <Windows>\systask32l.exe
restart and let Norton clean the rest.
BTW: Where did you get it from? Kazaa or Email? Is your Emailclient up to date(if it is Outlook(express)).