Not sure if you've seen the instructions by Symantec in http://securityresponse.symantec.com/avcenter/venc/data/trojan.cachecachekit.html
You need to remove first the worm W32.Spybot.NLX before Trojan.Cachecachekit can be removed.
Give it a try.
i have a virus on my system...its the trojan.cachecachekit....
i went inot safe mode a ran a virus scan...it deleted the files and i went in and got rid of the regestry entries...but it keeps comming back..