Logfile of HijackThis v1.99.1
Scan saved at 16:53:40, on 20.04.2006
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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\spoolsv.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb08.exe
C:\Programme\Hewlett-Packard\Digital Imaging\bin\hpotdd01.exe
C:\Programme\MSN Messenger\msnmsgr.exe
C:\PROGRA~1\INCRED~1\bin\IMApp.exe
C:\Programme\Alwil Software\Avast4\aswUpdSv.exe
C:\Programme\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\System32\svchost.exe
C:\Programme\Alwil Software\Avast4\ashMaiSv.exe
C:\Programme\Alwil Software\Avast4\ashWebSv.exe
D:\Eigene Dateien1\Programme\Hijack\hijackthis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.ebay.de/
F2 - REG:system.ini: UserInit=C:\WINDOWS\System32\Userinit.exe
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - D:\Eigene Dateien1\Programme\Adobe\ActiveX\AcroIEHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programme\google\googletoolbar2.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programme\google\googletoolbar2.dll
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb08.exe
O4 - HKLM\..\Run: [DeviceDiscovery] C:\Programme\Hewlett-Packard\Digital Imaging\bin\hpotdd01.exe
O4 - HKCU\..\Run: [IncrediMail] C:\Programme\IncrediMail\bin\IncMail.exe /c
O4 - HKCU\..\Run: [msnmsgr] "C:\Programme\MSN Messenger\msnmsgr.exe" /background
O8 - Extra context menu item: &Google-Suche - res://c:\programme\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: &Ins Deutsche übersetzen - res://c:\programme\google\GoogleToolbar2.dll/cmwordtrans.html
O8 - Extra context menu item: Im Cache gespeicherte Seite - res://c:\programme\google\GoogleToolbar2.dll/cmcache.html
O8 - Extra context menu item: Nach Microsoft &Excel exportieren - res://D:\EIGENE~1\PROGRA~1\MICROS~1\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Verweisseiten - res://c:\programme\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Ähnliche Seiten - res://c:\programme\google\GoogleToolbar2.dll/cmsimilar.html
O9 - Extra button: Snip Dies! - {C3881663-B3FA-49F4-BA57-183B02F47280} - res://snipit.dll/101 (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
O16 - DPF: {266B9238-31A5-4B53-9039-272FE846DF9D} (DiameterTransfer Control) - http://www.sis.com/download/SISTransfer.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{7865F635-0649-46FE-9CE6-1B1CC86B500C}: NameServer = 195.50.140.252 195.50.140.114
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Programme\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Programme\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Programme\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Programme\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programme\Gemeinsame Dateien\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: TuneUp WinStyler Theme Service (TUWinStylerThemeSvc) - TuneUp Software GmbH - C:\Programme\TuneUp Utilities 2004\WinStylerThemeSvc.exe

Es ist alle in Ordnung nur das Programm "Snip Dies" ist unnötig. Sonst verwendest du ja keine Firewall, das ist immer gut

O17 - HKLM\System\CCS\Services\Tcpip\..\{7865F635-0649-46FE-9CE6-1B1CC86B500C}: NameServer = 195.50.140.252 195.50.140.114

kennst du diese IP Adresse?