What does the .kak worm do?

[Rookie]

Am getting phantom (or otherwise wierd) *W* drives showing up on the right pane of windows explorer. And the shortcut i put on the desktop changes to a *My Computer* icon and if you right click on it and choose properties- it points to a funny colored pinwheel icon labeled iexplor.exe

Is this a Kak variant? it is a trojan isnt it?
This is on My Dad's machine but I was netbui networked with him and its on one of my machines as well.
My Dad belongs to a opt-in mailing list- kinda like a multilevel marketing...well no thats exactly what it is..mailing list for people wanting to make a killing on the web.
One of the mails sent to the list had a kak worm in it according to Norton 2000 av.
Norton quaratined it and i deleted it but there is massive damage spreading all over certain sysem files.
A reformat and reinstall went ok, but when I tried to add his mail client (eudora) and the outlook mail it seems that the fresh install is infected again!

From what I read the Kak variety of virus (or worm?) is a boot sector virus. Is that accurate?
I put the infected hdd in thinking it was slaved and forgot it was in the primary master slot and it booted- Maybe thats when it reinfected the new drive?
So... I did fdisk/mbr 2 times (also doing sys c )on each of the drives (bad one and new one) and thru away the floppy after each one- not wanting to take any chances.
Norton gives both a clean bill of health, but the W drives and the iexplr.exe still come back.
I ripped most of what i could find out of the registry and system folders and reinstalled. But they still come back.
Does my Dad have to lose all of his mail/contacts?
Any help would be much appreciated.
(needless to say the list mail now goes to web based mail clients....most of the opt in people are just harvesting emails)

[This message has been edited by Rookie (edited 05-03-2000).]

[UncaDanno]

Try this:

Type www.infoseek.com into the Address area of your browser. That will bring up the Infoseek search page.
Now, in the text box at the top, type in kak worm and press enter. That will bring up sites with references to "kak" and "worm".

The first is Symantec's writeup of the .kak worm. It'll tell you all about it.

[Rookie]

Thanks uncadanno, that tells me about the kak part. From what I read there at symantec, I may still have a trojan, with the iexplore stuff...?