variety of trojans?where is the problem?

browser hijack and trojans...started with smitfraud.c

hey,
i've been having a lotta problems ever since the
Trojan-spy.html.smitfraud.c virus got into my system...i did the
steps that were suggested and hopefully got rid of it..Now the problem is that this virus doesn't exist but a lotta new trojans get into my computer everytime i go on the net.i did a series of checks with possible anti spyware tools like
Ad-aware SE
Ccleaner
SpyBot S&D
XoftSpy
Spyware Blaster
i am using kaspersky to scan my computer..i initially had norton systemworks installed and updated.When the trojan-smitfraud virus got into the system norton started behaving wierd with a number of pop-up menus saying "Sending message 1/1" and smitfraud wudn't get out..uninstalled norton and the problem seemed to have gone.So got kaspersky installed.

the system is clean of all the viruses when offline and then i go online and it picks up varieties of trojans..like Opaserv worm,dyfuca.gen which don't get out and a whole lot of W32 viruses.am trying to clean these viruses in the safe mode.
Also my internet explorer homepage has got set to www.abcsearch4u.com (browser hijack) and a new application called powerscan has also got downloaded and installed.Am Unable to find where it is in the system...saw this in the start menu.
I might not be very clear in this post coz i dunno what to say...any
kinda questions might help me give you a clearer picture....Please help...Am very scared to go online in that computer..Can someone tell me what are the precautions that i've to take before i go online and what else i can do to get out of this mess..i've been trying out everything possible for the past three days..nothing seems to really help...
any kind of suggestions would be highly valuable...Please help...Thanku..

vidya

edited to disable hijack link - Detox

 

try downloading webroot spysweeper trial version. it should detect and fix a variety of problems including your homepage hijack. Hope this helps.

 

one other software to definitly try to keep the trojans at bay is ewido. as for where do they all come from the answer is - let one in and they call all their friends.

 

i'll definitely download and try that software...hope atleast that helps...

 

If you do not have a firewall installed then download the free version of Zonealarm. Disable the IDS in Kaspersky, if you install ZA, how to:http://forum.kaspersky.com/index.php?showtopic=897

Download the trial of http://www.ewido.net/en/, if you are using XP/2000

Also consider using a hostfile:http://www.mvps.org/winhelp2002/hosts.htm, easy, free & effective

Installed all three and update all your security-programs, use the extended databases in Kaspersky (found in "Threats and exclusions") + the maxprotection level in on-demand setting and go into safemode and run all of the Ad/Spyware, AV, AT programs in safemode and clean/delete everything you find.

Safemode:

 

Its very possible that one of the Applications you are using is allowing the Trojans in. AIM messenger or another messenger.

Is File Sharing enable anywhere

Re-check all your system settings. Make certain that Install On Demand Is Dis-abled In Internet Explorer. Tweak all your "ZONES" in internet explorer. Someone around here may be able to point you in the direction of a website that will show you how to properly set internet explorer. If you do not use internet explorer its still good to tweak the Zones just in case it is ever needed.

Dis-able "download" in every Zone until you need to use it.

Which Java are you using. Install Sun Java



you need to locate what and where the trojans are being allowed in at. Until you do they will just keep coming.