how do i get rid of trojan virus on my PC?

please help me on this one. i have a trojan virus on my PC. i deleted it using Anti virus personal edition classic, then i scanned it using anti virus personal edition classic. and nothing came up.
then i scanned the PC with the latest spybot version. and this trojan or virus called Microsoft. WindowsSecurityCenter.FirewallByPass came up. i selected fix problems, and then scanned it again and its still there. and it is now messing up my msn, as it keeps on exiting my conversations and i have to keep on signing in and out.


i clicked on a link, that contact from my msn was asking about, cos it had my email address in the link. i wish i didnt though.

so please does anyone know how to get this trojan off my computer?

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 7:02:28 PM, on 3/4/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16791)
Boot mode: Normal

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\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Avira\AntiVir PersonalEdition Classic\sched.exe
C:\Program Files\Avira\AntiVir PersonalEdition Classic\avgnt.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\WINDOWS\fxstaller.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe
C:\Program Files\DNA\btdna.exe
C:\Program Files\Avira\AntiVir PersonalEdition Classic\avguard.exe
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\Program Files\Windows Live\Messenger\usnsvc.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\philip\Desktop\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.co.uk/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre6\bin\ssv.dll
O2 - BHO: (no name) - {79a7b6cc-15f4-4598-9442-343ab84d19ce} - C:\WINDOWS\system32\tevupiru.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [avgnt] "C:\Program Files\Avira\AntiVir PersonalEdition Classic\avgnt.exe" /min
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [Windows UDP Control Center] fxstaller.exe
O4 - HKLM\..\Run: [bikawapuja] Rundll32.exe "C:\WINDOWS\system32\bawawaza.dll",s
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU\..\Run: [BitTorrent DNA] "C:\Program Files\DNA\btdna.exe"
O4 - HKUS\S-1-5-19\..\Run: [bikawapuja] Rundll32.exe "C:\WINDOWS\system32\bawawaza.dll",s (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [bikawapuja] Rundll32.exe "C:\WINDOWS\system32\bawawaza.dll",s (User 'NETWORK SERVICE')
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: Send to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: S&end to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://gfx2.hotmail.com/mail/w3/resources/MSNPUpld.cab
O16 - DPF: {8AD9C840-044E-11D1-B3E9-00805F499D93} (Java Runtime Environment 1.6.0) - http://dl8-cdn-03.sun.com/s/ESD5/JSC...ws-i586-jc.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/ge...sh/swflash.cab
O20 - AppInit_DLLs: C:\WINDOWS\system32\mosoveva.dll
O20 - Winlogon Notify: !SASWinLogon - C:\WINDOWS\
O23 - Service: Avira AntiVir Personal - Free Antivirus Scheduler (AntiVirScheduler) - Avira GmbH - C:\Program Files\Avira\AntiVir PersonalEdition Classic\sched.exe
O23 - Service: Avira AntiVir Personal - Free Antivirus Guard (AntiVirService) - Avira GmbH - C:\Program Files\Avira\AntiVir PersonalEdition Classic\avguard.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: ASP.NET State Service (aspnet_state) - Unknown owner - C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_state.exe (file missing)
O23 - Service: Bonjour Service - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: iPod Service - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: MSCSPTISRV - Sony Corporation - C:\Program Files\Common Files\Sony Shared\AVLib\MSCSPTISRV.exe
O23 - Service: PACSPTISVR - Unknown owner - C:\Program Files\Common Files\Sony Shared\AVLib\PACSPTISVR.exe
O23 - Service: Sony SPTI Service (SPTISRV) - Sony Corporation - C:\Program Files\Common Files\Sony Shared\AVLib\SPTISRV.exe

--
End of file - 6922 bytes

SmitFraudFix v2.399

Scan done at 20:02:31.96, Wed 03/04/2009
Run from C:\Documents and Settings\philip\Desktop\SmitfraudFix
OS: Microsoft Windows XP [Version 5.1.2600] - Windows_NT
The filesystem type is NTFS
Fix run in normal mode

»»»»»»»»»»»»»»»»»»»»»»»» Process

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\system32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Avira\AntiVir PersonalEdition Classic\sched.exe
C:\Program Files\Avira\AntiVir PersonalEdition Classic\avguard.exe
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\Avira\AntiVir PersonalEdition Classic\avgnt.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\WINDOWS\fxstaller.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\Program Files\DNA\btdna.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\WINDOWS\explorer.exe
C:\Program Files\Windows Live\Messenger\usnsvc.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\philip\Desktop\SmitfraudFix\Policies.exe
C:\WINDOWS\system32\cmd.exe

»»»»»»»»»»»»»»»»»»»»»»»» hosts

hosts file corrupted !

127.0.0.1 m.dell.com
127.0.0.1 microsoft.com.org
127.0.0.1 www.www.microsoft.com.org
127.0.0.1 ads.techguy.org

»»»»»»»»»»»»»»»»»»»»»»»» C:\


»»»»»»»»»»»»»»»»»»»»»»»» C:\WINDOWS


»»»»»»»»»»»»»»»»»»»»»»»» C:\WINDOWS\system


»»»»»»»»»»»»»»»»»»»»»»»» C:\WINDOWS\Web


»»»»»»»»»»»»»»»»»»»»»»»» C:\WINDOWS\system32


»»»»»»»»»»»»»»»»»»»»»»»» C:\WINDOWS\system32\LogFiles


»»»»»»»»»»»»»»»»»»»»»»»» C:\Documents and Settings\philip


»»»»»»»»»»»»»»»»»»»»»»»» C:\DOCUME~1\philip\LOCALS~1\Temp


»»»»»»»»»»»»»»»»»»»»»»»» C:\Documents and Settings\philip\Application Data


»»»»»»»»»»»»»»»»»»»»»»»» Start Menu


»»»»»»»»»»»»»»»»»»»»»»»» C:\DOCUME~1\philip\FAVORI~1


»»»»»»»»»»»»»»»»»»»»»»»» Desktop


»»»»»»»»»»»»»»»»»»»»»»»» C:\Program Files


»»»»»»»»»»»»»»»»»»»»»»»» Corrupted keys


»»»»»»»»»»»»»»»»»»»»»»»» Desktop Components

[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Desktop\Components\0]
"Source"="About:Home"
"SubscribedURL"="About:Home"
"FriendlyName"="My Current Home Page"


»»»»»»»»»»»»»»»»»»»»»»»» o4Patch
!!!Attention, following keys are not inevitably infected!!!

o4Patch
Credits: Malware Analysis & Diagnostic
Code: S!Ri



»»»»»»»»»»»»»»»»»»»»»»»» IEDFix
!!!Attention, following keys are not inevitably infected!!!

IEDFix
Credits: Malware Analysis & Diagnostic
Code: S!Ri



»»»»»»»»»»»»»»»»»»»»»»»» Agent.OMZ.Fix
!!!Attention, following keys are not inevitably infected!!!

Agent.OMZ.Fix
Credits: Malware Analysis & Diagnostic
Code: S!Ri


»»»»»»»»»»»»»»»»»»»»»»»» VACFix
!!!Attention, following keys are not inevitably infected!!!

VACFix
Credits: Malware Analysis & Diagnostic
Code: S!Ri


»»»»»»»»»»»»»»»»»»»»»»»» 404Fix
!!!Attention, following keys are not inevitably infected!!!

404Fix
Credits: Malware Analysis & Diagnostic
Code: S!Ri


»»»»»»»»»»»»»»»»»»»»»»»» Sharedtaskscheduler
!!!Attention, following keys are not inevitably infected!!!

SrchSTS.exe by S!Ri
Search SharedTaskScheduler's .dll


»»»»»»»»»»»»»»»»»»»»»»»» AppInit_DLLs
!!!Attention, following keys are not inevitably infected!!!

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows]
"AppInit_DLLs"="C:\\WINDOWS\\system32\\mosoveva.dll"
"LoadAppInit_DLLs"=dword:00000001


»»»»»»»»»»»»»»»»»»»»»»»» Winlogon
!!!Attention, following keys are not inevitably infected!!!

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
"Userinit"="C:\\WINDOWS\\system32\\userinit.exe,"
"System"=""


»»»»»»»»»»»»»»»»»»»»»»»» RK



»»»»»»»»»»»»»»»»»»»»»»»» DNS

Description: Realtek RTL8139 Family PCI Fast Ethernet NIC - Packet Scheduler Miniport
DNS Server Search Order: 192.168.2.1

HKLM\SYSTEM\CCS\Services\Tcpip\..\{DB260A07-6C3B-4B90-8798-0E4D640C2BBF}: DhcpNameServer=192.168.2.1
HKLM\SYSTEM\CS1\Services\Tcpip\..\{DB260A07-6C3B-4B90-8798-0E4D640C2BBF}: DhcpNameServer=192.168.2.1
HKLM\SYSTEM\CS3\Services\Tcpip\..\{DB260A07-6C3B-4B90-8798-0E4D640C2BBF}: DhcpNameServer=192.168.2.1
HKLM\SYSTEM\CCS\Services\Tcpip\Parameters: DhcpNameServer=192.168.2.1
HKLM\SYSTEM\CS1\Services\Tcpip\Parameters: DhcpNameServer=192.168.2.1
HKLM\SYSTEM\CS3\Services\Tcpip\Parameters: DhcpNameServer=192.168.2.1


»»»»»»»»»»»»»»»»»»»»»»»» Scanning for wininet.dll infection


»»»»»»»»»»»»»»»»»»»»»»»» End

i found this link

http://forums.spybot.info/showthread.php?t=36124

and i followed these instructions:

Thanks for returning your information, Smitfraudfix found the infection and it also found this:
»»»»»»»»»»»»»»»»»»»»»»»» hosts
hosts file corrupted !
After we clean, in the next C:\rapport.txt, there may be a very large hosts file (items starting with 127.0.0.1) and I do not need to see it. Edit (remove) it from the C:\rapport.txt before you post it.

Clean:
Reboot your computer in Safe Mode (before the Windows icon appears, tap the F8 key continually)
Double-click SmitfraudFix.exe
Select 2 and hit Enter to delete infected files.
You will be prompted: Do you want to clean the registry ? answer Y (yes) and hit Enter in order to remove the Desktop background and clean registry keys associated with the infection.
The tool will now check if wininet.dll is infected. You may be prompted to replace the infected file (if found): Replace infected file ? answer Y (yes) and hit Enter to restore a clean file.
A reboot may be needed to finish the cleaning process. The report can be found at the root of the system drive, usually at C:\rapport.txt

Optional:
To restore Trusted and Restricted site zone, select 3 and hit Enter.
You will be prompted: Restore Trusted Zone ? answer Y (yes) and hit Enter to delete trusted zone.
Note, if you use SpywareBlaster and/or IE-SPYAD, it will be necessary to re-install the protection both afford. For SpywareBlaster, run the program and re-protect all items. For IE-SPYAD, run the batch file and reinstall the protection.

Post the C:\rapport.txt and a new HJT log.

Thanks


although during the process, it didnt do this : The tool will now check if wininet.dll is infected. You may be prompted to replace the infected file (if found): Replace infected file ? answer Y (yes) and hit Enter to restore a clean file.
so how can i do that bit, when it didnt show up in the cleaning process?