hallo,

mein PC ist schon seit längerer zeit sehr langsam geworden,
reagiert öfters nicht mehr, wenn ich programme starte wie z.B. windows live messenger, hab auch probleme mit meiner internetverbindung, und ich habe sehr viele programme in meiner softwareliste(systemsteuerung) die sich nicht deinstallieren lassen,weiß auch gar nicht woher die kommen.
ich denke, dass sich einige viren hier angesammelt haben.

ich habe erstmal CCleaner runtergeladen und laufen lassen, bin so eine fehlermeldung losgeworden.

hijackthis habe ich auch laufen lassen hier die logfile:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 12:14:20, on 26.04.2009
Platform: Windows Vista SP1 (WinNT 6.00.1905)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\system32\taskeng.exe
C:\Windows\system32\taskeng.exe
C:\Program Files\Samsung\Samsung Update Plus\SUPBackGround.exe
C:\Program Files\SAMSUNG\EasySpeedUpManager\EasySpeedUpManager.exe
C:\Program Files\Samsung\Samsung Magic Doctor\MagicDoctorKbdHk.exe
C:\Program Files\Samsung\Easy Display Manager\dmhkcore.exe
C:\Program Files\Samsung\EBM\EasyBatteryMgr3.exe
C:\Windows\Explorer.EXE
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe
C:\Program Files\iTunes\iTunesHelper.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\Trend Micro\HijackThis\HijackThis.exe
C:\Windows\system32\SearchFilterHost.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.de/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://de.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://de.yahoo.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
R3 - URLSearchHook: Peer2Peer-DE Toolbar - {97ac393a-a525-4cd0-95cf-019b028cc7a4} - C:\Program Files\Peer2Peer-DE\tbPeer.dll
R3 - URLSearchHook: PHPNukeDE Toolbar - {c9508125-4747-4733-b048-e4b82dc9716d} - C:\Program Files\PHPNukeDE\tbPHPN.dll
O1 - Hosts: ::1 localhost
O2 - BHO: G DATA WebFilter Class - {0124123D-61B4-456f-AF86-78C53A0790C5} - C:\Program Files\G DATA\InternetSecurity\Webfilter\AVKWebIE.dll
O2 - BHO: &Yahoo! Toolbar Helper - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre6\bin\ssv.dll
O2 - BHO: Windows Live Anmelde-Hilfsprogramm - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Peer2Peer-DE Toolbar - {97ac393a-a525-4cd0-95cf-019b028cc7a4} - C:\Program Files\Peer2Peer-DE\tbPeer.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: PHPNukeDE Toolbar - {c9508125-4747-4733-b048-e4b82dc9716d} - C:\Program Files\PHPNukeDE\tbPHPN.dll
O2 - BHO: (no name) - {D187A56B-A33F-4CBE-9D77-459FC0BAE012} - (no file)
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: (no name) - {4F11ACBB-393F-4C86-A214-FF3D0D155CC3} - (no file)
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: Peer2Peer-DE Toolbar - {97ac393a-a525-4cd0-95cf-019b028cc7a4} - C:\Program Files\Peer2Peer-DE\tbPeer.dll
O3 - Toolbar: PHPNukeDE Toolbar - {c9508125-4747-4733-b048-e4b82dc9716d} - C:\Program Files\PHPNukeDE\tbPHPN.dll
O3 - Toolbar: G DATA WebFilter - {0124123D-61B4-456f-AF86-78C53A0790C5} - C:\Program Files\G DATA\InternetSecurity\Webfilter\AVKWebIE.dll
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe"
O4 - HKLM\..\Run: [LanguageShortcut] "C:\Program Files\CyberLink\PowerDVD\Language\Language.exe"
O4 - HKLM\..\Run: [LiveUpdate] "\Update\Copyer.exe" -R
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKCU\..\Run: [ehTray.exe] C:\Windows\ehome\ehTray.exe
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 'LOKALER DIENST')
O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'LOKALER DIENST')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'NETZWERKDIENST')
O8 - Extra context menu item: Nach Microsoft E&xel exportieren - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: In Blog veröffentlichen - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: In Windows Live Writer in Blog veröffentliche&n - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: (no name) - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: @btrez.dll,-4015 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra 'Tools' menuitem: @btrez.dll,-12650 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra button: Run IMVU - {d9288080-1baa-4bc4-9cf8-a92d743db949} - C:\Users\Zakia\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\IMVU\Run IMVU.lnk
O9 - Extra button: ICQ6 - {E59EB121-F339-4851-A3BA-FE49C35617C2} - C:\Program Files\ICQ6\ICQ.exe
O9 - Extra 'Tools' menuitem: ICQ6 - {E59EB121-F339-4851-A3BA-FE49C35617C2} - C:\Program Files\ICQ6\ICQ.exe
O13 - Gopher Prefix:
O16 - DPF: CabBuilder - http://kiw.imgag.com/imgag/kiw/toolbar/download/InstallerControl.cab
O16 - DPF: {20A60F0D-9AFA-4515-A0FD-83BD84642501} (Checkers Class) - http://messenger.zone.msn.com/binary/msgrchkr.cab56986.cab
O16 - DPF: {4A85DBE0-BFB2-4119-8401-186A7C6EB653} - http://messenger.zone.msn.com/binary/MJSS.cab69309.cab
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://gfx1.hotmail.com/mail/w2/resources/VistaMSNPUpldde-de.cab
O16 - DPF: {5C051655-FCD5-4969-9182-770EA5AA5565} (Solitaire Showdown Class) - http://messenger.zone.msn.com/binary/SolitaireShowdown.cab56986.cab
O16 - DPF: {5D637FAD-E202-48D1-8F18-5B9C459BD1E3} (Image Uploader Control) - http://www.schueler.cc/uploader/ImageUploader5.cab
O16 - DPF: {5D6F45B3-9043-443D-A792-115447494D24} (UnoCtrl Class) - http://messenger.zone.msn.com/DE-DE/a-UNO1/GAME_UNO1.cab
O16 - DPF: {67DABFBF-D0AB-41FA-9C46-CC0F21721616} (DivXBrowserPlugin Object) - http://download.divx.com/player/DivXBrowserPlugin.cab
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1233774804705
O16 - DPF: {6E5E167B-1566-4316-B27F-0DDAB3484CF7} (Image Uploader Control) - http://static.pe.studivz.net/photouploader/ImageUploader4.cab?nocache=1203452274
O16 - DPF: {6E718D87-6909-4FCE-92D4-EDCB2F725727} (Navigram Control) - http://www.navigram.com/engine/v911/Navigram.cab
O16 - DPF: {8AD9C840-044E-11D1-B3E9-00805F499D93} (Java Runtime Environment 1.6.0) - http://dl8-cdn-03.sun.com/s/ESD5/JSCDL/jdk/6u10/jinstall-6u10-windows-i586-jc.cab?e=1226094271389&h=61201a74f1e61719f8df8e49f2c5c7fa/&filename=jinstall-6u10-windows-i586-jc.cab
O16 - DPF: {9122D757-5A4F-4768-82C5-B4171D8556A7} (PhotoPickConvert Class) - http://appdirectory.messenger.msn.com/AppDirectory/P4Apps/PhotoSwap/PhtPkMSN.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (MSN Games - Installer) - http://messenger.zone.msn.com/binary/ZIntro.cab56649.cab
O16 - DPF: {BA162249-F2C5-4851-8ADC-FC58CB424243} (Image Uploader Control) - http://static.pe.schuelervz.net/photouploader/ImageUploader5.cab?nocache=1204836591
O16 - DPF: {BFF1950D-B1B4-4AE8-B842-B2CCF06D9A1B} (Zylom Games Player) - http://game11.zylom.com/activex/zylomgamesplayer.cab
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab56907.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O16 - DPF: {E6187999-9FEC-46A1-A20F-F4CA977D5643} (ZoneChess Object) - http://messenger.zone.msn.com/binary/Chess.cab57176.cab
O16 - DPF: {F8C5C0F1-D884-43EB-A5A0-9E1C4A102FA8} (GoPetsWeb Control) - https://secure.gopetslive.com/dev/GoPetsWeb.cab
O23 - Service: Agere Modem Call Progress Audio (AgereModemAudio) - Agere Systems - C:\Windows\system32\agrsmsvc.exe
O23 - Service: Ati External Event Utility - ATI Technologies Inc. - C:\Windows\system32\Ati2evxx.exe
O23 - Service: G DATA AntiVirus Proxy (AVKProxy) - G DATA Software AG - C:\Program Files\Common Files\G DATA\AVKProxy\AVKProxy.exe
O23 - Service: G DATA Scheduler (AVKService) - G DATA Software AG - C:\Program Files\G DATA\InternetSecurity\AVK\AVKService.exe
O23 - Service: AntiVirus Wächter (AVKWCtl) - G DATA Software AG - C:\Program Files\G DATA\InternetSecurity\AVK\AVKWCtl.exe
O23 - Service: InCD Helper (InCDsrvR) - Nero AG - C:\Program Files\Nero\Nero8\InCD\InCDsrv.exe
O23 - Service: iPod-Dienst (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Nero Registry InCD Service (NeroRegInCDSrv) - Nero AG - C:\Program Files\Nero\Nero8\InCD\NBHRegInCDSrv.exe
O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Program Files\CyberLink\Shared Files\RichVideo.exe
O23 - Service: ServiceLayer - Nokia. - C:\Program Files\Common Files\PCSuite\Services\ServiceLayer.exe
O23 - Service: STI Simulator - Unknown owner - C:\Windows\System32\PAStiSvc.exe

--
End of file - 10655 bytes

dein system sieht mir noch verdächtig verseucht aus.
ich würd einmal die folgenden daten unter Online malware scan scannen:
C:\Program Files\Peer2Peer-DE\tbPeer.dll
C:\Program Files\PHPNukeDE\tbPHPN.dll
C:\Windows\System32\PAStiSvc.exe (fals du keine webcam besitzt oder cam software instaliert ist]
das sind die files die mir ins auge gefallen sind.
sicherheitshalber dann gleich nochmal von CA Threat Scanner aus scannen lassen.
falls der pc virenfrei ist einmal den autostart überprüfen. ausführen-->msconfig-->systemstart
teilweise auch
ausführen-->msconfig-->dienste
umso mehr prozesse der pc beim booten starten muss umso länger dauert es und die unötigen hintergrund programme klauen dem pc nur unötig die ressourcen für aktiv von dir benutze programme und natürlich dem system, deshalb alles was du nicht benötigst deaktivieren in dem du die häckchen aus den dementsprechenden zeilen nimmst.
falls du dich mit den diensten nicht auskennst, finger weg von den windows diensten und nur die deaktievieren die du kennst.