I had the same problem, was indeed a bogus program that somehow managed to get itself into my system. I use Spybot to get rid of this kind of stuff, and it seeemed to do the trick.
korkus2000
2:07 am on Jan 13, 2004 (gmt 0)
It took a reload to get rid of it for me. Spybot, adaware, and other programs never found it. This was about 6 months ago. I hope they can find them now. I needed the 404 for development so I couldn't work with it.
tcabanting
7:02 pm on Jan 21, 2004 (gmt 0)
I had the same hijack. I run window XP, but i am sure they have a source for the html. run the check and then delete that following file. Usually opens in notebook file. My hijack website would load ever shutdown and then start. It was websearch.net the source for me was C:\Documents and Settings\tcabanting\Local Settings\Temporary Internet Files\Content.IE5\S52JC9MN\ydtfs[1]. I just deleted the ydtfs[1] and everything was fine
tcabanting
2:01 am on Jan 24, 2004 (gmt 0)
For all you XP users out there there is another way. run your regedit and do a search for websearch.net export the files before you delete to make sure you have no problems taking them out. this is a fail proof method. The previous method takes care of it, but for only a short while.