Trojaner-Board - hilfe werbeseiten öffnen sich von alleine

hallo brauche dringend hilfe.jedes mal wenn ich im internet eine seite öffne,öffnen sich von alleine werbeseiten.woran kann das leigen und was kann ich machen damit die sich nicht mehr öffnene?
hier noch mein post hjackthis.

Logfile of HijackThis v1.99.1
Scan saved at 21:06:05, on 15.12.2006
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.5730.0011)

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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\LEXBCES.EXE
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\LEXPPS.EXE
C:\WINDOWS\ehome\ehtray.exe
C:\Programme\ICQLite\ICQLite.exe
C:\Programme\AntiVir PersonalEdition Classic\avgnt.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programme\MSN Messenger\MsnMsgr.Exe
C:\Programme\Skype\Phone\Skype.exe
C:\Programme\Xfire\Xfire.exe
c:\progra~1\intern~1\iexplore.exe
C:\Programme\Internet Explorer\IEXPLORE.EXE
C:\Programme\AntiVir PersonalEdition Classic\sched.exe
C:\Programme\AntiVir PersonalEdition Classic\avguard.exe
C:\WINDOWS\eHome\ehRecvr.exe
C:\WINDOWS\eHome\ehSched.exe
C:\PROGRA~1\INCRED~1\bin\IMApp.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\PROGRA~1\MOZILL~1\FIREFOX.EXE
C:\Programme\Internet Explorer\iexplore.exe
C:\Dokumente und Einstellungen\SCHATZ\Desktop\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://de.rd.yahoo.com/customize/ie/defaults/sp/msgr8/*http://de.search.yahoo.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.de/
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\Internet Explorer\SearchURL,(Default) = http://de.rd.yahoo.com/customize/ie/defaults/su/msgr8/*http://de.search.yahoo.com
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = fritz.box
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O2 - BHO: Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programme\Gemeinsame Dateien\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Programme\Spybot - Search & Destroy\SDHelper.dll
O4 - HKLM\..\Run: [ehTray] C:\WINDOWS\ehome\ehtray.exe
O4 - HKLM\..\Run: [ICQ Lite] "C:\Programme\ICQLite\ICQLite.exe" -minimize
O4 - HKLM\..\Run: [avgnt] "C:\Programme\AntiVir PersonalEdition Classic\avgnt.exe" /min
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Programme\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [IncrediMail] C:\Programme\IncrediMail\bin\IncMail.exe /c
O4 - HKCU\..\Run: [Spyware Doctor] "C:\Programme\Spyware Doctor\spydoctor.exe" /Q
O4 - HKCU\..\Run: [Skype] "C:\Programme\Skype\Phone\Skype.exe" /nosplash /minimized
O4 - HKCU\..\Run: [MSMSGS] C:\Programme\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [DebugDead] C:\DOKUME~1\SCHATZ\ANWEND~1\INTERN~1\dumbonce.exe
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Programme\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU\..\RunOnce: [ICQ Lite] C:\Programme\ICQLite\ICQLite.exe -trayboot
O4 - Startup: OpenOffice.org 2.0.lnk = C:\Programme\OpenOffice.org 2.0\program\quickstart.exe
O4 - Startup: Xfire.lnk = C:\Programme\Xfire\Xfire.exe
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programme\Java\j2re1.4.2_05\bin\npjpi142_05.dll
O9 - Extra 'Tools' menuitem: Sun Java Konsole - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programme\Java\j2re1.4.2_05\bin\npjpi142_05.dll
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O9 - Extra button: (no name) - {AFC3FA82-AD07-45cd-8B57-983435B9899E} - (no file)
O9 - Extra button: ICQ Lite - {B863453A-26C3-4e1f-A54D-A2CD196348E9} - C:\Programme\ICQLite\ICQLite.exe
O9 - Extra 'Tools' menuitem: ICQ Lite - {B863453A-26C3-4e1f-A54D-A2CD196348E9} - C:\Programme\ICQLite\ICQLite.exe
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra button: Yahoo! Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - C:\Programme\Yahoo!\Messenger\YahooMessenger.exe
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - C:\Programme\Yahoo!\Messenger\YahooMessenger.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programme\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programme\Messenger\msmsgs.exe
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/SharedContent/vc/bin/AvSniff.cab
O16 - DPF: {2ED9BC2B-4DF1-472E-9B5E-55477D2C97F5} (Microsoft Data Collection Control) - https://support.microsoft.com/OAS/ActiveX/odc.cab
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://download.bitdefender.com/resources/scan8/oscan8.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1158496685041
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClient.cab31267.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O16 - DPF: {EF791A6B-FC12-4C68-99EF-FB9E207A39E6} (McFreeScan Class) - http://download.mcafee.com/molbin/iss-loc/mcfscan/2,1,0,4918/mcfscan.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{A946A3DF-D2F3-4CDE-97CA-3FD766C6FBDE}: NameServer = 192.168.122.252,192.168.122.253
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: AntiVir PersonalEdition Classic Planer (AntiVirScheduler) - Avira GmbH - C:\Programme\AntiVir PersonalEdition Classic\sched.exe
O23 - Service: AntiVir PersonalEdition Classic Guard (AntiVirService) - AVIRA GmbH - C:\Programme\AntiVir PersonalEdition Classic\avguard.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: AVM FRITZ!web Routing Service (de_serv) - AVM Berlin - C:\Programme\Gemeinsame Dateien\AVM\de_serv.exe
O23 - Service: LexBce Server (LexBceS) - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.EXE
O23 - Service: ServiceLayer - Nokia. - C:\Programme\Gemeinsame Dateien\PCSuite\Services\ServiceLayer.exe