Hi ich glaube ihch wurde gehackt, hier einmal ein HijackThis Log:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 13:18, on 2009-02-23
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP3 (6.00.2900.5512)
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\Avira\AntiVir PersonalEdition Classic\sched.exe
C:\Programme\Avira\AntiVir PersonalEdition Classic\avguard.exe
C:\Programme\Gemeinsame Dateien\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Programme\AskBarDis\bar\bin\AskService.exe
C:\Programme\AskBarDis\bar\bin\ASKUpgrade.exe
C:\Programme\avmwlanstick\WlanNetService.exe
C:\Programme\Bonjour\mDNSResponder.exe
C:\Programme\Java\jre6\bin\jqs.exe
C:\Programme\Google\Update\GoogleUpdate.exe
C:\Programme\Gemeinsame Dateien\Microsoft Shared\VS7Debug\mdm.exe
C:\Programme\Gemeinsame Dateien\Nero\Nero BackItUp 4\NBService.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\system32\PnkBstrA.exe
C:\WINDOWS\Explorer.EXE
C:\Programme\avmwlanstick\wlangui.exe
C:\Programme\Gemeinsame Dateien\Logitech\G-series Software\LGDCore.exe
C:\Programme\Avira\AntiVir PersonalEdition Classic\avgnt.exe
C:\WINDOWS\RTHDCPL.EXE
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\TUProgSt.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\Programme\DAEMON Tools Lite\daemon.exe
C:\Programme\Spybot - Search & Destroy\TeaTimer.exe
C:\Programme\Logitech\Desktop Messenger\8876480\Program\LogitechDesktopMessenger.exe
C:\Programme\Logitech\SetPoint\SetPoint.exe
C:\WINDOWS\system32\wbem\wmiapsrv.exe
C:\Programme\Gemeinsame Dateien\Logishrd\KHAL2\KHALMNPR.EXE
C:\Programme\iPod\bin\iPodService.exe
C:\Programme\iTunes\iTunes.exe
C:\Programme\ICQ6.5\ICQ.exe
C:\Programme\Mozilla Firefox\firefox.exe
C:\WINDOWS\system32\PnkBstrB.exe
C:\WINDOWS\SYSTEM32\NOTEPAD.EXE
C:\Programme\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.de
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R3 - URLSearchHook: (no name) - - (no file)
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Programme\Gemeinsame Dateien\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: AskBar BHO - {201f27d4-3704-41d6-89c1-aa35e39143ed} - C:\Programme\AskBarDis\bar\bin\askBar.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programme\Java\jre6\bin\ssv.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programme\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Programme\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O3 - Toolbar: Ask Toolbar - {3041d03e-fd4b-44e0-b742-2d9b88305f98} - C:\Programme\AskBarDis\bar\bin\askBar.dll
O4 - HKLM\..\Run: [AVMWlanClient] "C:\Programme\avmwlanstick\wlangui.exe"
O4 - HKLM\..\Run: [Launch LGDCore] "C:\Programme\Gemeinsame Dateien\Logitech\G-series Software\LGDCore.exe" /SHOWHIDE
O4 - HKLM\..\Run: [Kernel and Hardware Abstraction Layer] KHALMNPR.EXE
O4 - HKLM\..\Run: [AppleSyncNotifier] C:\Programme\Gemeinsame Dateien\Apple\Mobile Device Support\bin\AppleSyncNotifier.exe
O4 - HKLM\..\Run: [Synchronization Manager] "C:\WINDOWS\system32\mobsync.exe" /logon
O4 - HKLM\..\Run: [avgnt] "C:\Programme\Avira\AntiVir PersonalEdition Classic\avgnt.exe" /min
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
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 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [DAEMON Tools Lite] "C:\Programme\DAEMON Tools Lite\daemon.exe"
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Programme\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU\..\Run: [EA Core] "C:\Programme\Electronic Arts\EADM\Core.exe" -silent
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\RunOnce: [tscuninstall] %systemroot%\system32\tscupgrd.exe (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunOnce: [tscuninstall] %systemroot%\system32\tscupgrd.exe (User 'Default user')
O4 - Global Startup: Adobe Gamma Loader.exe.lnk = C:\Programme\Gemeinsame Dateien\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Logitech Desktop Messenger.lnk = C:\Programme\Logitech\Desktop Messenger\8876480\Program\LogitechDesktopMessenger.exe
O4 - Global Startup: Logitech SetPoint.lnk = C:\Programme\Logitech\SetPoint\SetPoint.exe
O8 - Extra context menu item: Add to Google Photos Screensa&ver - res://C:\WINDOWS\system32\GPhotos.scr/200
O8 - Extra context menu item: Nach Microsoft E&xel exportieren - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\Microsoft Office\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\Spybot - Search & Destroy\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\ICQ6.5\ICQ.exe
O9 - Extra 'Tools' menuitem: ICQ6 - {E59EB121-F339-4851-A3BA-FE49C35617C2} - C:\Programme\ICQ6.5\ICQ.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programme\Messenger\msmsgs.exe (file missing)
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programme\Messenger\msmsgs.exe (file missing)
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
O16 - DPF: {D0C0F75C-683A-4390-A791-1ACFD5599AB8} (Oberon Flash Game Host) - http://icq.oberon-media.com/Gameshell/GameHost/1.0/OberonGameHost.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{D7A1BE18-99DC-4F7B-96BE-B811BBA7A751}: NameServer = 192.168.178.1
O18 - Protocol: bwfile-8876480 - {9462A756-7B47-47BC-8C80-C34B9B80B32B} - C:\Programme\Logitech\Desktop Messenger\8876480\Program\GAPlugProtocol-8876480.dll
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\GEMEIN~1\Skype\SKYPE4~1.DLL
O20 - Winlogon Notify: efcYOeFx - efcYOeFx.dll (file missing)
O23 - Service: Avira AntiVir Personal - Free Antivirus Planer (AntiVirScheduler) - Avira GmbH - C:\Programme\Avira\AntiVir PersonalEdition Classic\sched.exe
O23 - Service: Avira AntiVir Personal - Free Antivirus Guard (AntiVirService) - Avira GmbH - C:\Programme\Avira\AntiVir PersonalEdition Classic\avguard.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Programme\Gemeinsame Dateien\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: ASKService - Unknown owner - C:\Programme\AskBarDis\bar\bin\AskService.exe
O23 - Service: ASKUpgrade - Unknown owner - C:\Programme\AskBarDis\bar\bin\ASKUpgrade.exe
O23 - Service: AVM WLAN Connection Service - AVM Berlin - C:\Programme\avmwlanstick\WlanNetService.exe
O23 - Service: Bonjour-Dienst (Bonjour Service) - Apple Inc. - C:\Programme\Bonjour\mDNSResponder.exe
O23 - Service: Defragmentation-Service (DfSdkS) - mst software GmbH, Germany - C:\Programme\Ashampoo\Ashampoo WinOptimizer 6\Dfsdks.exe
O23 - Service: Google Update Service (gupdate1c98f7125f02e86) (gupdate1c98f7125f02e86) - Google Inc. - C:\Programme\Google\Update\GoogleUpdate.exe
O23 - Service: Google Software Updater (gusvc) - Google - C:\Programme\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programme\Gemeinsame Dateien\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: iPod-Dienst (iPod Service) - Apple Inc. - C:\Programme\iPod\bin\iPodService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Programme\Java\jre6\bin\jqs.exe
O23 - Service: Logitech Bluetooth Service (LBTServ) - Logitech, Inc. - C:\Programme\Gemeinsame Dateien\Logitech\Bluetooth\LBTServ.exe
O23 - Service: Nero BackItUp Scheduler 4.0 - Nero AG - C:\Programme\Gemeinsame Dateien\Nero\Nero BackItUp 4\NBService.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: PnkBstrA - Unknown owner - C:\WINDOWS\system32\PnkBstrA.exe
O23 - Service: PnkBstrB - Unknown owner - C:\WINDOWS\system32\PnkBstrB.exe
O23 - Service: SiSoftware Deployment Agent Service (SandraAgentSrv) - SiSoftware - C:\Programme\SiSoftware\SiSoftware Sandra Lite 2009.SP2\RpcAgentSrv.exe
O23 - Service: TuneUp Drive Defrag-Dienst (TuneUp.Defrag) - TuneUp Software - C:\WINDOWS\System32\TuneUpDefragService.exe
O23 - Service: TuneUp Program Statistics Service (TuneUp.ProgramStatisticsSvc) - TuneUp Software - C:\WINDOWS\System32\TUProgSt.exe

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End of file - 9755 bytes

Die Angabe " ich glaube ich wurde gehackt " ist ein wenig allgemein gehalten. Versuche zu erläutern was genau passiert ist.