Thanks! Heb een log gemaakt: 
Logfile of Trend Micro HijackThis v2.0.2 
Scan saved at 16:14:22, on 23-3-2009 
Platform: Windows Vista SP1 (WinNT 6.00.1905) 
MSIE: Internet Explorer v7.00 (7.00.6001.18000) 
Boot mode: Normal 
Running processes: 
C:\Windows\system32\Dwm.exe 
C:\Windows\Explorer.EXE 
C:\Windows\system32\taskeng.exe 
C:\Windows\RtHDVCpl.exe 
C:\Program Files\Launch Manager\LaunchAp.exe 
C:\Program Files\Launch Manager\HotkeyApp.exe 
C:\Program Files\Launch Manager\OSD.exe 
C:\Program Files\Launch Manager\WButton.exe 
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe 
C:\Program Files\AVG\AVG8\avgtray.exe 
C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe 
C:\Program Files\Synaptics\SynTP\SynMedion.exe 
C:\Windows\System32\rundll32.exe 
C:\Program Files\Java\jre6\bin\jusched.exe 
C:\Program Files\Windows Live\Messenger\msnmsgr.exe 
C:\Windows\ehome\ehtray.exe 
C:\Program Files\Windows Media Player\wmpnscfg.exe 
C:\Windows\ehome\ehmsas.exe 
C:\Windows\system32\wbem\unsecapp.exe 
C:\Program Files\Internet Explorer\ieuser.exe 
C:\Windows\system32\wuauclt.exe 
C:\Program Files\Internet Explorer\iexplore.exe 
C:\Windows\system32\conime.exe 
C:\Windows\system32\Macromed\Flash\FlashUtil10a.exe 
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe 
C:\Windows\system32\SearchFilterHost.exe 
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = MEDION International 
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = Live Search 
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = Alles Over Utrecht, het beste lokale nieuws! Lokaal nieuws uit Utrecht en veel meer... Utrecht, nieuwshart van nederland 
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = MEDION International 
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = Live Search 
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = Live Search 
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = MSN.com 
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =  
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =  
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = 192.168.100.54:8080 
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =  
O1 - Hosts: ::1 localhost 
O2 - BHO: Adobe PDF Reader Help bij koppelingen - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll 
O2 - BHO: Java Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre6\bin\ssv.dll 
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file) 
O2 - BHO: Windows Live Aanmelden - Help - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll 
O2 - BHO: Java Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll 
O4 - HKLM\..\Run: [RtHDVCpl] RtHDVCpl.exe 
O4 - HKLM\..\Run: [LaunchAp] "C:\Program Files\Launch Manager\LaunchAp.exe" 
O4 - HKLM\..\Run: [HotkeyApp] "C:\Program Files\Launch Manager\HotkeyApp.exe" 
O4 - HKLM\..\Run: [LMgrOSD] "C:\Program Files\Launch Manager\OSD.exe" 
O4 - HKLM\..\Run: [Wbutton] "C:\Program Files\Launch Manager\Wbutton.exe" 
O4 - HKLM\..\Run: [synTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe 
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe" 
O4 - HKLM\..\Run: [iSUSScheduler] "C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe" -start 
O4 - HKLM\..\Run: [toolbar_eula_launcher] C:\Program Files\GoogleEULA\EULALauncher.exe 
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Windows\system32\NeroCheck.exe 
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime 
O4 - HKLM\..\Run: [NvSvc] RUNDLL32.EXE C:\Windows\system32\nvsvc.dll,nvsvcStart 
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\Windows\system32\NvCpl.dll,NvStartup 
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\Windows\system32\NvMcTray.dll,NvTaskbarInit 
O4 - HKLM\..\Run: [AVG8_TRAY] C:\PROGRA~1\AVG\AVG8\avgtray.exe 
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe" 
O4 - HKLM\..\Run: [sunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe" 
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe" /background 
O4 - HKCU\..\Run: [ehTray.exe] C:\Windows\ehome\ehTray.exe 
O4 - HKCU\..\Run: [iSUSPM Startup] "C:\Program Files\Common Files\InstallShield\UpdateService\ISUSPM.exe" -startup 
O4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe 
O4 - HKUS\S-1-5-19\..\Run: [sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'LOCAL SERVICE') 
O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'LOCAL SERVICE') 
O4 - HKUS\S-1-5-20\..\Run: [sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'NETWORK SERVICE') 
O9 - Extra button: Onderzoek - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL 
O13 - Gopher Prefix:  
O20 - AppInit_DLLs: avgrsstx.dll 
O23 - Service: Lavasoft Ad-Aware Service (aawservice) - Lavasoft - C:\Program Files\Lavasoft\Ad-Aware\aawservice.exe 
O23 - Service: AVG Free8 E-mail Scanner (avg8emc) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgemc.exe 
O23 - Service: AVG Free8 WatchDog (avg8wd) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe 
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files\Common Files\LightScribe\LSSrvc.exe 
O23 - Service: WisLMSvc - Wistron Corp. - C:\Program Files\Launch Manager\WisLMSvc.exe 
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End of file - 5916 bytes 
Kan je hier wat mee zo?