virus "Your computer is infected"..

Hallo,

habe wohl einen Virus. Ein gelbes Kästchen baut sich unten rechts auf dem Desktop auf und warnt mich "Your computer is infected"..

Log-Datei:

Logfile of HijackThis v1.99.1
Scan saved at 15:49:56, on 29.05.2006
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\csrss.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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Programme\Alwil Software\Avast4\aswUpdSv.exe
C:\Programme\Alwil Software\Avast4\ashServ.exe
C:\Programme\FRITZ!DSL\IGDCTRL.EXE
C:\Programme\Gemeinsame Dateien\Microsoft Shared\VS7Debug\mdm.exe
C:\WINDOWS\System32\HPZipm12.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\wdfmgr.exe
C:\Programme\HP\HP Software Update\HPWuSchd2.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\WINDOWS\system32\ZoneLabs\vsmon.exe
C:\Programme\Zone Labs\ZoneAlarm\zlclient.exe
C:\WINDOWS\System32\intell321.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Programme\HDX4\hdx4tray.exe
C:\Programme\FRITZ!DSL\StCenter.exe
C:\Programme\Alwil Software\Avast4\setup\avast.setup
C:\Programme\Alwil Software\Avast4\ashWebSv.exe
C:\Programme\Alwil Software\Avast4\ashMaiSv.exe
C:\Programme\WinRAR\WinRAR.exe
C:\DOKUME~1\Bati\LOKALE~1\Temp\Rar$EX01.734\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.de/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = fritz.box
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programme\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Programme\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: PCTools Site Guard - {5C8B2A36-3DB1-42A4-A3CB-D426709BBFEB} - C:\PROGRA~1\SPYWAR~1\tools\iesdsg.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programme\google\googletoolbar2.dll
O2 - BHO: PCTools Browser Monitor - {B56A7D7D-6927-48C8-A975-17DF180C71AC} - C:\PROGRA~1\SPYWAR~1\tools\iesdpb.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programme\google\googletoolbar2.dll
O4 - HKLM\..\Run: [HP Software Update] C:\Programme\HP\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [NTSF MICROSOFT SYSTEM] ntsf.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [Zone Labs Client] C:\Programme\Zone Labs\ZoneAlarm\zlclient.exe
O4 - HKLM\..\Run: [hgqhp.exe] C:\WINDOWS\System32\hgqhp.exe
O4 - HKLM\..\Run: [intell321.exe] C:\WINDOWS\System32\intell321.exe
O4 - HKLM\..\RunServices: [NTSF MICROSOFT SYSTEM] ntsf.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [NTSF MICROSOFT SYSTEM] ntsf.exe
O4 - Global Startup: Control Center.lnk = C:\Programme\HDX4\hdx4tray.exe
O4 - Global Startup: FRITZ!DSL Startcenter.lnk = C:\Programme\FRITZ!DSL\StCenter.exe
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://C:\PROGRA~1\MICROS~2\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: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programme\Java\jre1.5.0_02\bin\npjpi150_02.dll
O9 - Extra 'Tools' menuitem: Sun Java Konsole - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programme\Java\jre1.5.0_02\bin\npjpi150_02.dll
O9 - Extra button: Spyware Doctor - {2D663D1A-8670-49D9-A1A5-4C56B4E14E84} - C:\PROGRA~1\SPYWAR~1\tools\iesdpb.dll
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://by15fd.bay15.hotmail.msn.com/resources/MsnPUpld.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDownloader.cab
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: 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: AVM IGD CTRL Service - AVM Berlin - C:\Programme\FRITZ!DSL\IGDCTRL.EXE
O23 - Service: AVM FRITZ!web Routing Service (de_serv) - AVM Berlin - C:\Programme\Gemeinsame Dateien\AVM\de_serv.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\System32\HPZipm12.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe