Please help me get rid of the about:blank virus

[Element150]

I downloaded hijackthis and CWshredder. I ran cwshredder in safe mode. then i went back to normal mode and ran hijackthis. here is the log. what do I do next?

Logfile of HijackThis v1.97.7
Scan saved at 10:50:27 PM, on 6/23/2004
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\Documents and Settings\wizard\My Documents\Hijackthis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = file://C:\DOCUME~1\wizard\LOCALS~1\Temp\sp.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = file://C:\DOCUME~1\wizard\LOCALS~1\Temp\sp.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = file://C:\DOCUME~1\wizard\LOCALS~1\Temp\sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = file://C:\DOCUME~1\wizard\LOCALS~1\Temp\sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = file://C:\DOCUME~1\wizard\LOCALS~1\Temp\sp.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = file://C:\DOCUME~1\wizard\LOCALS~1\Temp\sp.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
O2 - BHO: (no name) - {B9D90B27-AD4A-413a-88CB-3E6DDC10DC2D} - C:\WINDOWS\msopt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [S3TRAY2] S3tray2.exe
O4 - Global Startup: WinZip Quick Pick.lnk = C:\Program Files\WinZip\WZQKPICK.EXE
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Research (HKLM)
O9 - Extra button: Related (HKLM)
O9 - Extra 'Tools' menuitem: Show &Related Links (HKLM)
O16 - DPF: {3E68E405-C6DE-49FF-83AE-41EE9F4C36CE} (Office Update Installation Engine) - http://office.microsoft.com/officeupdate/content/opuc.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab

[DMR]

To start with, Have HJT fix the following:

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = file://C:\DOCUME~1\wizard\LOCALS~1\Temp\sp.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = file://C:\DOCUME~1\wizard\LOCALS~1\Temp\sp.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = file://C:\DOCUME~1\wizard\LOCALS~1\Temp\sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = file://C:\DOCUME~1\wizard\LOCALS~1\Temp\sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = file://C:\DOCUME~1\wizard\LOCALS~1\Temp\sp.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = file://C:\DOCUME~1\wizard\LOCALS~1\Temp\sp.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
O2 - BHO: (no name) - {B9D90B27-AD4A-413a-88CB-3E6DDC10DC2D} - C:\WINDOWS\msopt.dll

Once done, reboot into safe mode and delete all of the files referenced in the above log entries. You might have to set WIndows Explorer's "View" options to show all files and folders, show hidden and system files, etc.

You might also want to have HJT whack these as well:

O9 - Extra button: Research (HKLM)
O9 - Extra button: Related (HKLM)
O9 - Extra 'Tools' menuitem: Show &Related Links (HKLM)

Once all of that is done, purge your cookies, Temporary Internet FIles, and History. Empty your Recycle Bin after that.

[Element150]

It seems to be working and fixed now. Thanks. Now how do I prevent this from getting on my computer again?

[DMR]

There are general "best practice" steps you take to lessen your chance of reinfection, and there are also a couple of programs you can download which will actively block some spyware activity. All of this is described in the following article; give it a read:

http://www.computercops.biz/postlite7736-.html