Trojaner-Board - Startseite verschwindet

Hallo,

ich hoffe auf Eure Hilfe.
Wenn ich den Rechner neu starte "verliert" er jedes Mal die Explorer7/Firefox-Startseite und setzt die Adresse auf "00000000". Wenn ich in der "regedit" die Adresse unter R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page ändere passiert dasselbe nach dem Neustart. Unter "Internetoptionen" komme ich natürlich auch nicht zum Erfolg.
Lt. Spybot, Shredder und AntiVir liegen keine Viren o. ä. vor.
Was muss ich tun, damit der PC sich wieder die Startseite behält????

Logfile of HijackThis v1.99.1
Scan saved at 19:55:54, on 04.02.2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16574)

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\ibmpmsvc.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\ZoneLabs\vsmon.exe
C:\WINDOWS\system32\brsvc01a.exe
C:\WINDOWS\system32\brss01a.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Programme\ThinkPad\ConnectUtilities\AcPrfMgrSvc.exe
C:\Programme\AntiVir PersonalEdition Classic\sched.exe
C:\Programme\AntiVir PersonalEdition Classic\avguard.exe
C:\WINDOWS\system32\Brmfrmps.exe
C:\Programme\Analog Devices\SoundMAX\SMAgent.exe
C:\WINDOWS\System32\svchost.exe
c:\programme\lenovo\system update\suservice.exe
C:\Programme\Gemeinsame Dateien\Lenovo\Scheduler\tvtsched.exe
C:\Programme\ThinkPad\ConnectUtilities\AcSvc.exe
C:\Programme\ThinkPad\ConnectUtilities\SvcGuiHlpr.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Programme\AntiVir PersonalEdition Classic\avgnt.exe
C:\Programme\Synaptics\SynTP\SynTPLpr.exe
C:\Programme\Synaptics\SynTP\SynTPEnh.exe
C:\Programme\IBM\Messages By IBM\ibmmessages.exe
C:\Programme\Analog Devices\SoundMAX\SMax4PNP.exe
C:\PROGRA~1\ThinkPad\UTILIT~1\EzEjMnAp.Exe
C:\Programme\ThinkPad\ConnectUtilities\ACTray.exe
C:\Programme\ThinkPad\ConnectUtilities\ACWLIcon.exe
C:\WINDOWS\AGRSMMSG.exe
C:\PROGRA~1\Lenovo\PkgMgr\HOTKEY\TPHKMGR.exe
C:\Programme\Gemeinsame Dateien\Real\Update_OB\realsched.exe
C:\Programme\Browser MOUSE\mouse32a.exe
C:\Programme\Zone Labs\ZoneAlarm\zlclient.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programme\Gemeinsame Dateien\Lenovo\Scheduler\scheduler_proxy.exe
C:\Programme\Lenovo\PkgMgr\HOTKEY\TPONSCR.exe
C:\Programme\Lenovo\PkgMgr\HOTKEY_1\TpScrex.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Programme\Adobe\Acrobat 7.0\Reader\reader_sl.exe
C:\Dokumente und Einstellungen\Eigner\Eigene Dateien\(Internet)Software\HiJackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = 00000000
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
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programme\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O4 - HKLM\..\Run: [avgnt] "C:\Programme\AntiVir PersonalEdition Classic\avgnt.exe" /min
O4 - HKLM\..\Run: [SynTPLpr] C:\Programme\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Programme\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [ibmmessages] C:\Programme\IBM\Messages By IBM\\ibmmessages.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Programme\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [SoundMAXPnP] C:\Programme\Analog Devices\SoundMAX\SMax4PNP.exe
O4 - HKLM\..\Run: [SoundMAX] "C:\Programme\Analog Devices\SoundMAX\Smax4.exe" /tray
O4 - HKLM\..\Run: [EZEJMNAP] C:\PROGRA~1\ThinkPad\UTILIT~1\EzEjMnAp.Exe
O4 - HKLM\..\Run: [ACTray] C:\Programme\ThinkPad\ConnectUtilities\ACTray.exe
O4 - HKLM\..\Run: [ACWLIcon] C:\Programme\ThinkPad\ConnectUtilities\ACWLIcon.exe
O4 - HKLM\..\Run: [TP4EX] tp4ex.exe
O4 - HKLM\..\Run: [AGRSMMSG] AGRSMMSG.exe
O4 - HKLM\..\Run: [TPHOTKEY] C:\PROGRA~1\Lenovo\PkgMgr\HOTKEY\TPHKMGR.exe
O4 - HKLM\..\Run: [TrackPointSrv] tp4serv.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Programme\Gemeinsame Dateien\Ahead\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [SetDefPrt] C:\Programme\Brother\Brmfl03a\BrStDvPt.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Programme\Gemeinsame Dateien\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [FLMOFFICE4DMOUSE] C:\Programme\Browser MOUSE\mouse32a.exe
O4 - HKLM\..\Run: [ZoneAlarm Client] "C:\Programme\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKLM\..\Run: [TVT Scheduler Proxy] C:\Programme\Gemeinsame Dateien\Lenovo\Scheduler\scheduler_proxy.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [ibmmessages] C:\Programme\IBM\Messages By IBM\ibmmessages.exe
O4 - Global Startup: Adobe Reader - Schnellstart.lnk = C:\Programme\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Programme\Microsoft Office\Office10\OSA.EXE
O9 - Extra button: ThinkPad-Software - Aktualisierung - {D1A4DEBD-C2EE-449f-B9FB-E8409F9A0BC5} - C:\Programme\Lenovo\PkgMgr\PkgMgr.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: 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: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1154453373924
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1154457032958
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\GEMEIN~1\Skype\SKYPE4~1.DLL
O20 - Winlogon Notify: ACNotify - ACNotify.dll (file missing)
O20 - Winlogon Notify: tpfnf2 - C:\WINDOWS\SYSTEM32\notifyf2.dll
O20 - Winlogon Notify: tphotkey - C:\WINDOWS\SYSTEM32\tphklock.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O23 - Service: Ac Profile Manager Service (AcPrfMgrSvc) - Unknown owner - C:\Programme\ThinkPad\ConnectUtilities\AcPrfMgrSvc.exe
O23 - Service: Access Connections Main Service (AcSvc) - Lenovo - C:\Programme\ThinkPad\ConnectUtilities\AcSvc.exe
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: Brother Popup Suspend service for Resource manager (brmfrmps) - Unknown owner - C:\WINDOWS\system32\Brmfrmps.exe" -service (file missing)
O23 - Service: BrSplService (Brother XP spl Service) - brother Industries Ltd - C:\WINDOWS\system32\brsvc01a.exe
O23 - Service: ThinkPad PM Service (IBMPMSVC) - Unknown owner - C:\WINDOWS\system32\ibmpmsvc.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programme\Gemeinsame Dateien\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: NBService - Nero AG - C:\Programme\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: Intel NCS NetService (NetSvc) - Intel(R) Corporation - C:\Programme\Intel\NCS\Sync\NetSvc.exe
O23 - Service: SoundMAX Agent Service (SoundMAX Agent Service (default)) - Analog Devices, Inc. - C:\Programme\Analog Devices\SoundMAX\SMAgent.exe
O23 - Service: System Update (SUService) - Lenovo Group Limited - c:\programme\lenovo\system update\suservice.exe
O23 - Service: TVT Scheduler - Lenovo Group Limited - C:\Programme\Gemeinsame Dateien\Lenovo\Scheduler\tvtsched.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe

1000Dank!!!