Hallo zusammen!
Ich habe seit heute früh das Problem, daß die eingestellte Startseite nicht angezeigt wird, sondern eine "Fehlerseite" von Microsoft:

(mal im Klartext) http://www.microsoft.com/library/errorpages/smarterror.aspx?404;http://www.microsoft.com/germany/windows/ie/downloads/default.mspx

Wenn ich im IE (Version 7, alle Updates) den Startseiten-Button klicke, kommt die eigentliche Seite ganz normal.

Ich habe mal ein HiJackThis-Logfile gemacht:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 19:27:35, on 22.10.2008
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16735)
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:\Programme\Lavasoft\Ad-Aware\aawservice.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\brsvc01a.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\brss01a.exe
C:\Programme\a-squared Free\a2service.exe
C:\Programme\Gemeinsame Dateien\Acronis\Schedule2\schedul2.exe
C:\Programme\WISO Internet Security\sched.exe
C:\Programme\WISO Internet Security\avguard.exe
C:\Programme\Ashampoo\Ashampoo Magical Defrag 2\bin\aDefragService.exe
C:\Programme\WISO Internet Security\avesvc.exe
C:\Programme\Google\Common\Google Updater\GoogleUpdaterService.exe
C:\Programme\ICQ6Toolbar\ICQ Service.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\system32\svchost.exe
C:\Programme\UPHClean\uphclean.exe
C:\WINDOWS\system32\SearchIndexer.exe
C:\Programme\Ashampoo\Ashampoo Magical Defrag 2\bin\defragMonitorService.exe
C:\Programme\WISO Internet Security\avmailc.exe
C:\Programme\Ashampoo\Ashampoo Magical Defrag 2\bin\defragActivityMonitor.exe
C:\Programme\WISO Internet Security\AVWEBGRD.EXE
C:\Programme\Canon\CAL\CALMAIN.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programme\Visagesoft\eXPert PDF\vspdfprsrv.exe
C:\Programme\Spamihilator\spamihilator.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Programme\Ashampoo\Ashampoo Magical Defrag 2\bin\defragTaskBar.exe
C:\Programme\Java\jre1.6.0_07\bin\jusched.exe
C:\Programme\Ahead\Nero BackItUp\NBJ.exe
C:\Programme\WEB.DE\WEB.DE SmartDrive Manager\DAVSRV.EXE
C:\Programme\Free Download Manager\fdm.exe
C:\Programme\Free Download Manager\FUM\fumoei.exe
C:\Programme\Spybot - Search & Destroy\TeaTimer.exe
C:\Programme\Copernic Desktop Search 2\DesktopSearchService.exe
C:\Programme\Windows Media Player\WMPNSCFG.exe
C:\Programme\EPSON\EPSON SMART PANEL for Scanner\EspMain.exe
C:\Programme\FRITZ!\FriFax32.exe
C:\Programme\FRITZ!\FriFon32.exe
C:\Programme\ICQ6\ICQ.exe
C:\Programme\T-Online\DSL-Manager\DslMgr.exe
C:\Programme\T-Online\DSL-Manager\DslMgrSvc.exe
C:\Programme\Internet Explorer\iexplore.exe
C:\Programme\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.web.de/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,First Home Page = http://go.microsoft.com/fwlink/?LinkId=54843
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Programme\Gemeinsame Dateien\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Programme\Real\RealPlayer\rpbrowserrecordplugin.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programme\Java\jre1.6.0_07\bin\ssv.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programme\google\googletoolbar1.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Programme\Google\GoogleToolbarNotifier\4.1.805.4472\swg.dll
O2 - BHO: FDMIECookiesBHO Class - {CC59E0F9-7E43-44FA-9FAA-8377850BF205} - C:\Programme\Free Download Manager\iefdm2.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programme\google\googletoolbar1.dll
O3 - Toolbar: ICQToolBar - {855F3B16-6D32-4fe6-8A56-BBB695989046} - C:\Programme\ICQ6Toolbar\ICQToolBar.dll
O3 - Toolbar: Copernic Desktop Search - Home - {968631B6-4729-440D-9BF4-251F5593EC9A} - C:\Programme\Copernic Desktop Search 2\DesktopSearchBand300000081.dll
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [vspdfprsrv.exe] C:\Programme\Visagesoft\eXPert PDF\vspdfprsrv.exe --background
O4 - HKLM\..\Run: [Spamihilator] "C:\Programme\Spamihilator\spamihilator.exe"
O4 - HKLM\..\Run: [avgnt] "C:\Programme\WISO Internet Security\avgnt.exe" /min
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [DefragTaskBar] "C:\Programme\Ashampoo\Ashampoo Magical Defrag 2\bin\defragTaskBar.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programme\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programme\Java\jre1.6.0_07\bin\jusched.exe"
O4 - HKCU\..\Run: [NBJ] "C:\Programme\Ahead\Nero BackItUp\NBJ.exe"
O4 - HKCU\..\Run: [WEB.DE_WEB.DE SmartDrive Manager] "C:\Programme\WEB.DE\WEB.DE SmartDrive Manager\DAVSRV.EXE" /hide
O4 - HKCU\..\Run: [Free Download Manager] C:\Programme\Free Download Manager\fdm.exe -autorun
O4 - HKCU\..\Run: [Free Uploader Oe Integration] C:\Programme\Free Download Manager\FUM\fumoei.exe
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Programme\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Copernic Desktop Search - Home] "C:\Programme\Copernic Desktop Search 2\DesktopSearchService.exe" /tray
O4 - HKCU\..\Run: [WMPNSCFG] C:\Programme\Windows Media Player\WMPNSCFG.exe
O4 - Startup: DSL-Manager.lnk = C:\Programme\T-Online\DSL-Manager\DslMgr.exe
O4 - Global Startup: EPSON SMART PANEL for Scanner.lnk = C:\Programme\EPSON\EPSON SMART PANEL for Scanner\EspMain.exe
O4 - Global Startup: FRITZ!fax.lnk = C:\Programme\FRITZ!\FriFax32.exe
O4 - Global Startup: FRITZ!fon.lnk = C:\Programme\FRITZ!\FriFon32.exe
O4 - Global Startup: ICQ6.lnk = C:\Programme\ICQ6\ICQ.exe
O8 - Extra context menu item: Download all with Free Download Manager - file://C:\Programme\Free Download Manager\dlall.htm
O8 - Extra context menu item: Download selected with Free Download Manager - file://C:\Programme\Free Download Manager\dlselected.htm
O8 - Extra context menu item: Download video with Free Download Manager - file://C:\Programme\Free Download Manager\dlfvideo.htm
O8 - Extra context menu item: Download with Free Download Manager - file://C:\Programme\Free Download Manager\dllink.htm
O8 - Extra context menu item: Nach Microsoft &Excel exportieren - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programme\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Konsole - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programme\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra button: Recherchieren - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\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: ICQ6 - {E59EB121-F339-4851-A3BA-FE49C35617C2} - C:\Programme\ICQ6\ICQ.exe
O9 - Extra 'Tools' menuitem: ICQ6 - {E59EB121-F339-4851-A3BA-FE49C35617C2} - C:\Programme\ICQ6\ICQ.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
O9 - Extra button: Upload - {FD4E2FF8-973C-4A19-89BD-8E86B3CFCFE1} - C:\Programme\Free Download Manager\FUM\fumiebtn.dll
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - http://www.kaspersky.com/kos/german/partner/de/kavwebscan_unicode.cab
O16 - DPF: {1E54D648-B804-468d-BC78-4AFFED8E262E} (System Requirements Lab) - http://www.nvidia.com/content/DriverDownload/srl/3.0.0.0/srl_bin/sysreqlab3.cab
O16 - DPF: {406B5949-7190-4245-91A9-30A17DE16AD0} (Snapfish Activia) - http://www3.snapfish.de/SnapfishActivia.cab
O16 - DPF: {59136DB4-6CA3-4B40-8F2F-BBF84B6F1E91} (Attachment Upload Control) - https://stream.web.de/mail/activex/mail_upload_11213.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1132229558968
O16 - DPF: {67A5F8DC-1A4B-4D66-9F24-A704AD929EEE} (System Requirements Lab) - http://www.nvidia.com/content/DriverDownload/srl/2.0.0.1/sysreqlab2.cab
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1179940892906
O16 - DPF: {74DBCB52-F298-4110-951D-AD2FF67BC8AB} (NVIDIA Smart Scan) - http://www.nvidia.com/content/DriverDownload/nforce/NvidiaSmartScan.cab
O16 - DPF: {917623D1-D8E5-11D2-BE8B-00104B06BDE3} (CamImage Class) - http://metbee-ipcam.dyndns.org:85/activex/AxisCamControl.cab
O16 - DPF: {CF40ACC5-E1BB-4AFF-AC72-04C2F616BCA7} -
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - https://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O16 - DPF: {D3166EE4-3E00-46CA-8F62-8E01D2314A7F} - http://www.cig.canon-europe.com/ph/de_DE/st/download/ddup/CNIMGUP_01_210102G.cab
O16 - DPF: {DEB21AD3-FDA4-42F6-B57D-EE696A675EE8} (IPSUploader Control) - http://as.photoprintit.de/ips-opdata/layout/default01/activex/IPSUploader.cab
O16 - DPF: {DF6504AC-3EFE-4287-B259-FB299B069C95} (WEBDE Fotoalbum Upload Control) - https://img.web.de/v/mail/activex/fa_os_mms/upload_1141.cab
O16 - DPF: {E4CF4E86-D0DC-4864-8F0E-4F6EA2526334} (UI File Upload Control) - https://img.web.de/v/smartdrive/activex/v2/web_de_osupload_2002.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{91CCC922-C80E-4B27-B5B8-B409292DCFC8}: NameServer = 217.237.149.205 217.237.151.51
O23 - Service: a-squared Free Service (a2free) - Emsi Software GmbH - C:\Programme\a-squared Free\a2service.exe
O23 - Service: Lavasoft Ad-Aware Service (aawservice) - Lavasoft - C:\Programme\Lavasoft\Ad-Aware\aawservice.exe
O23 - Service: Acronis Scheduler2 Service (AcrSch2Svc) - Acronis - C:\Programme\Gemeinsame Dateien\Acronis\Schedule2\schedul2.exe
O23 - Service: WISO Internet Security AntiVir Firewall (AntiVirFirewallService) - Avira GmbH - C:\Programme\WISO Internet Security\avfwsvc.exe
O23 - Service: WISO Internet Security AntiVir MailGuard (AntiVirMailService) - Avira GmbH - C:\Programme\WISO Internet Security\avmailc.exe
O23 - Service: WISO Internet Security AntiVir Planer (AntiVirScheduler) - Avira GmbH - C:\Programme\WISO Internet Security\sched.exe
O23 - Service: WISO Internet Security AntiVir Guard (AntiVirService) - Avira GmbH - C:\Programme\WISO Internet Security\avguard.exe
O23 - Service: WISO Internet Security AntiVir WebGuard (antivirwebservice) - Avira GmbH - C:\Programme\WISO Internet Security\AVWEBGRD.EXE
O23 - Service: Ashampoo Defrag Service (AshampooDefragService) - - C:\Programme\Ashampoo\Ashampoo Magical Defrag 2\bin\aDefragService.exe
O23 - Service: WISO Internet Security AntiVir MailGuard Hilfsdienst (AVEService) - Avira GmbH - C:\Programme\WISO Internet Security\avesvc.exe
O23 - Service: BrSplService (Brother XP spl Service) - brother Industries Ltd - C:\WINDOWS\system32\brsvc01a.exe
O23 - Service: Canon Camera Access Library 8 (CCALib8) - Canon Inc. - C:\Programme\Canon\CAL\CALMAIN.exe
O23 - Service: AVM FRITZ!web Routing Service (de_serv) - AVM Berlin - C:\Programme\Gemeinsame Dateien\AVM\de_serv.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Programme\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: ICQ Service - Unknown owner - C:\Programme\ICQ6Toolbar\ICQ Service.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: DSL-Manager (TDslMgrService) - T-Systems Enterprise Services GmbH - C:\Programme\T-Online\DSL-Manager\DslMgrSvc.exe
O23 - Service: WPEServ - soft Xpansion - C:\Programme\Gemeinsame Dateien\WPE\wpeserv.exe

--
End of file - 12604 bytes


Ein Virenscan und eine Überprüfung von Spybot haben nichts gebracht. Das System läßt sich auch nicht zurücksetzen, da ändert sich nichts.

Hat jemand eine Idee zur Lösung?

Danke
Carsten