Hallo!
Bin neu hier und hab ziemlich wenig Ahnung von Viren und sonstigem lästigem Zeug. Ich hab folgendes Problem und zwar dauert der Start von meinem Computer viel länger als früher. Ebenfalls ist er auch beim Arbeiten langsamer.
Auf meinem Computer ist Windows XP mit SP3!
Hab hier mal mein HijackThis file eingefügt. Wäre nett wenn ihr mal einen Blick drauf werfen könnt und mir ggf. helfen.

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 15:32:24, on 05.11.2008
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16735)
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Programme\Lavasoft\Ad-Aware\aawservice.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Programme\AntiVir PersonalEdition Classic\sched.exe
C:\Programme\AntiVir PersonalEdition Classic\avguard.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\ZoneLabs\vsmon.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_S4I0T1.EXE
C:\Programme\ATI Technologies\ATI.ACE\cli.exe
C:\Programme\AntiVir PersonalEdition Classic\avgnt.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Programme\Java\jre1.6.0_07\bin\jusched.exe
C:\Programme\Zone Labs\ZoneAlarm\zlclient.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programme\Windows Media Player\WMPNSCFG.exe
C:\Programme\ATI Technologies\ATI.ACE\CLI.exe
C:\Programme\MA311 PCI Adapter Configuration Utility\wlanutil.exe
C:\Programme\OnlineControl\ocontrol.exe
C:\Programme\SpeedFan\speedfan.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Programme\Trend Micro\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://google.icq.com/search/search_frame.php
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.de/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
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://go.microsoft.com/fwlink/?LinkId=69157
R3 - URLSearchHook: (no name) - {855F3B16-6D32-4fe6-8A56-BBB695989046} - (no file)
O2 - BHO: XTTBPos00 - {055FD26D-3A88-4e15-963D-DC8493744B1D} - (no file)
O2 - BHO: flashget2 urlcatch - {1F364306-AA45-47B5-9F9D-39A8B94E7EF1} - C:\Programme\FlashGet Network\FlashGet universal\ComDlls\bhoCATCH.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programme\Java\jre1.6.0_07\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Programme\Gemeinsame Dateien\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: ZoneAlarm Spy Blocker BHO - {F0D4B231-DA4B-4daf-81E4-DFEE4931A4AA} - C:\Programme\ZoneAlarmSB\bar\1.bin\SPYBLOCK.DLL
O3 - Toolbar: ZoneAlarm Spy Blocker - {F0D4B239-DA4B-4daf-81E4-DFEE4931A4AA} - C:\Programme\ZoneAlarmSB\bar\1.bin\SPYBLOCK.DLL
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [EPSON Stylus C46 Series] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_S4I0T1.EXE /P23 "EPSON Stylus C46 Series" /O6 "USB001" /M "Stylus C46"
O4 - HKLM\..\Run: [ATICCC] "C:\Programme\ATI Technologies\ATI.ACE\cli.exe" runtime
O4 - HKLM\..\Run: [avgnt] "C:\Programme\AntiVir PersonalEdition Classic\avgnt.exe" /min
O4 - HKLM\..\Run: [PinnacleDriverCheck] C:\WINDOWS\system32\\PSDrvCheck.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programme\Java\jre1.6.0_07\bin\jusched.exe"
O4 - HKLM\..\Run: [ZoneAlarm Client] "C:\Programme\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [WMPNSCFG] C:\Programme\Windows Media Player\WMPNSCFG.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'LOKALER DIENST')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'NETZWERKDIENST')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - Startup: SpeedFan.lnk = C:\Programme\SpeedFan\speedfan.exe
O4 - Global Startup: ATI CATALYST System Tray.lnk = C:\Programme\ATI Technologies\ATI.ACE\CLI.exe
O4 - Global Startup: Configuration Utility.lnk = C:\Programme\MA311 PCI Adapter Configuration Utility\wlanutil.exe
O4 - Global Startup: OnlineControl.lnk = C:\Programme\OnlineControl\ocontrol.exe
O8 - Extra context menu item: &Download All by FlashGet - C:\Programme\FlashGet Network\FlashGet universal\ComDlls\Bhoall.htm
O8 - Extra context menu item: &Download by FlashGet - C:\Programme\FlashGet Network\FlashGet universal\ComDlls\Bholink.htm
O8 - Extra context menu item: &ICQ Toolbar Search - res://C:\Programme\ICQToolbar\toolbaru.dll/SEARCH.HTML
O8 - Extra context menu item: Nach Microsoft &Excel exportieren - res://C:\PROGRA~1\MICROS~3\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Senden an &Bluetooth - C:\Programme\MSI\BToes Bluetooth Software\btsendto_ie_ctx.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programme\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Konsole - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programme\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra button: Recherchieren - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\OFFICE11\REFIEBAR.DLL
O9 - Extra button: ICQ Lite - {B863453A-26C3-4e1f-A54D-A2CD196348E9} - C:\Programme\ICQLite\ICQLite.exe (file missing)
O9 - Extra 'Tools' menuitem: ICQ Lite - {B863453A-26C3-4e1f-A54D-A2CD196348E9} - C:\Programme\ICQLite\ICQLite.exe (file missing)
O9 - Extra button: @btrez.dll,-4015 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Programme\MSI\BToes Bluetooth Software\btsendto_ie.htm
O9 - Extra 'Tools' menuitem: @btrez.dll,-4017 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Programme\MSI\BToes Bluetooth Software\btsendto_ie.htm
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\ICQ.exe
O9 - Extra 'Tools' menuitem: ICQ6 - {E59EB121-F339-4851-A3BA-FE49C35617C2} - C:\Programme\ICQ6\ICQ.exe
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: {14B87622-7E19-4EA8-93B3-97215F77A6BC} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab31267.cab
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://spaces.msn.com//PhotoUpload/MsnPUpld.cab
O16 - DPF: {5D6F45B3-9043-443D-A792-115447494D24} (UnoCtrl Class) - http://messenger.zone.msn.com/DE-DE/a-UNO1/GAME_UNO1.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1123416902750
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (MSN Games - Installer) - http://messenger.zone.msn.com/binary/ZIntro.cab56649.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: {F5A7706B-B9C0-4C89-A715-7A0C6B05DD48} (Minesweeper Flags Class) - http://messenger.zone.msn.com/binary/MineSweeper.cab56986.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{79BAA210-10BB-4CB6-A7DE-9C6C521ECD1F}: NameServer = 192.168.2.1
O23 - Service: Lavasoft Ad-Aware Service (aawservice) - Lavasoft - C:\Programme\Lavasoft\Ad-Aware\aawservice.exe
O23 - Service: AntiVir Scheduler (AntiVirScheduler) - Avira GmbH - C:\Programme\AntiVir PersonalEdition Classic\sched.exe
O23 - Service: AntiVir PersonalEdition Classic Service (AntiVirService) - Avira GmbH - C:\Programme\AntiVir PersonalEdition Classic\avguard.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programme\Gemeinsame Dateien\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Remote Packet Capture Protocol v.0 (experimental) (rpcapd) - CACE Technologies - C:\Programme\WinPcap\rpcapd.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe

--
End of file - 8933 bytes

Hi JeanL

In deinem Log kann ich nichts wirklich Schädliches sehen.
Versuche mal die Firewall abzuschalten und die Windowseigene zu aktivieren.
Dann kannst du mal noch den CCleaner nach Anleitung mal anwenden.
Ansonsten ist es normal, dass der PC mit der Zeit langsamer wird.
Du kannst auch im Windows Verzeichnis den Prefetch Ordner leeren.