Trojaner-Board - Internet Explorer läuft im Hintergrung obwohl ich ihn garnicht geöffnet habe

Hallo,
bin neu hier im Forum und kenn mich noch nich so aus hier.
Ich habe folgendes Problem, mein Internet Explorer läuft im Hintergrung obwohl ich ihn garnicht geöffnet habe. Außerdem kann ich Antivir nicht instalieren. Ich glaube ein Trojaner hat sich bei mir eingeschlichen.
Ich poste noch die Hijackthis logfile dazu.
Ich hoffe ihr könnt mir da weiter helfen, vielen Dank schon mal im vorraus.

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 10:13:12, on 11.12.2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
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\spoolsv.exe
C:\Programme\Home Cinema\PowerCinema\Kernel\TV\CLCapSvc.exe
C:\WINDOWS\Explorer.EXE
C:\Programme\Home Cinema\PowerCinema\Kernel\CLML_NTService\CLMLServer.exe
C:\Programme\EWA net\database\TransBase EWA\tbmux32.exe
C:\Programme\EWA net\database\TransBase EPC\tbmux32.exe
C:\Programme\EWA net\database\TransBase WIS\tbmux32.exe
C:\Programme\EWA net\server\bin\tomcat.exe
C:\WINDOWS\System32\svchost.exe
C:\Programme\Gemeinsame Dateien\LightScribe\LSSrvc.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\lxdwserv.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Programme\Cyberlink\Shared files\RichVideo.exe
C:\WINDOWS\system32\svchost.exe
C:\PROGRA~1\COMMON~1\X10\Common\x10nets.exe
C:\Programme\Home Cinema\PowerCinema\Kernel\TV\CLSched.exe
C:\Programme\EWA net\database\TransBase EPC\tbkern32.exe
C:\Programme\EWA net\database\TransBase EWA\tbkern32.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\taskmgr.exe
D:\Programme\Trend Micro\HijackThis\HijackThis.exe
C:\Programme\Internet Explorer\iexplore.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = Google
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.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
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {1E53EA77-34F2-474E-9046-B2B0C86F1821} (OggX Control) - http://www.eska.pl/streamplayers/OggX.ocx
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1150982010296
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1150981999390
O16 - DPF: {C1FDEE68-98D5-4F42-A4DD-D0BECF5077EB} (EPUImageControl Class) - http://tools.ebayimg.com/eps/wl/activex/eBay_Enhanced_Picture_Control_v1-0-27-0.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\GEMEIN~1\Skype\SKYPE4~1.DLL
O23 - Service: Avira AntiVir Personal - Free Antivirus Planer (AntiVirScheduler) - Unknown owner - C:\Programme\Avira\AntiVir PersonalEdition Classic\sched.exe (file missing)
O23 - Service: CyberLink Background Capture Service (CBCS) (CLCapSvc) - Unknown owner - C:\Programme\Home Cinema\PowerCinema\Kernel\TV\CLCapSvc.exe
O23 - Service: CyberLink Task Scheduler (CTS) (CLSched) - Unknown owner - C:\Programme\Home Cinema\PowerCinema\Kernel\TV\CLSched.exe
O23 - Service: CyberLink Media Library Service - Cyberlink - C:\Programme\Home Cinema\PowerCinema\Kernel\CLML_NTService\CLMLServer.exe
O23 - Service: EWA net DB Core - Transaction Software, D 81737 Munich - C:\Programme\EWA net\database\TransBase EWA\tbmux32.exe
O23 - Service: EWA net DB EPC - Transaction Software, D 81737 Munich - C:\Programme\EWA net\database\TransBase EPC\tbmux32.exe
O23 - Service: EWA net DB WIS - Transaction Software, D 81737 Munich - C:\Programme\EWA net\database\TransBase WIS\tbmux32.exe
O23 - Service: EWA net Server - Alexandria Software Consulting - C:\Programme\EWA net\server\bin\tomcat.exe
O23 - Service: Firebird Server - MAGIX Instance (FirebirdServerMAGIXInstance) - MAGIX® - C:\Programme\MAGIX\Common\Database\bin\fbserver.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programme\Gemeinsame Dateien\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: Lavasoft Ad-Aware Service - Unknown owner - C:\Programme\Lavasoft\Ad-Aware\AAWService.exe (file missing)
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Programme\Gemeinsame Dateien\LightScribe\LSSrvc.exe
O23 - Service: lxdwCATSCustConnectService - Lexmark International, Inc. - C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\\lxdwserv.exe
O23 - Service: NBService - Nero AG - C:\Programme\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: NMIndexingService - Nero AG - C:\Programme\Gemeinsame Dateien\Ahead\Lib\NMIndexingService.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Programme\Cyberlink\Shared files\RichVideo.exe
O23 - Service: LiveShare P2P Server 9 (RoxLiveShare9) - Unknown owner - C:\Programme\Gemeinsame Dateien\Roxio Shared\9.0\SharedCOM\RoxLiveShare9.exe (file missing)
O23 - Service: TuneUp Drive Defrag-Dienst (TuneUp.Defrag) - TuneUp Software GmbH - C:\WINDOWS\System32\TuneUpDefragService.exe
O23 - Service: X10 Device Network Service (x10nets) - X10 - C:\PROGRA~1\COMMON~1\X10\Common\x10nets.exe