Hallo,
habe ein problem mit meinen pc...der friert seit kurzen immer ein.
Vieleicht kann wer durch diese log datei ersehen woran das liegen kann.

Logfile of HijackThis v1.99.1
Scan saved at 12:25:18, on 02.12.2007
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\csrss.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
D:\Programme\TuneUp Utilities 2006\WinStylerThemeSvc.exe
C:\WINDOWS\System32\svchost.exe
D:\Programme\Sygate\SPF\smc.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:\Programme\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Programme\Java\jre1.6.0_03\bin\jusched.exe
C:\Programme\Sony Ericsson\Mobile2\Application Launcher\Application Launcher.exe
C:\Programme\PestPatrol\PPMemCheck.exe
C:\Programme\PestPatrol\CookiePatrol.exe
C:\Programme\Gemeinsame Dateien\Real\Update_OB\realsched.exe
C:\Programme\Winamp\winampa.exe
D:\Programme\Tobit ClipInc\Player\ClipIncTray.exe
C:\PROGRA~1\Grisoft\AVG7\avgcc.exe
C:\Programme\MSN Messenger\MsnMsgr.Exe
C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
C:\WINDOWS\System32\cisvc.exe
D:\Programme\Tobit ClipInc\Server\ClipInc-Server.exe
C:\Programme\Mozilla Firefox\firefox.exe
D:\Programme\Tobit ClipInc\Server\ClipInc-Server.exe
D:\Programme\Tobit ClipInc\Server\ClipInc-Server.exe
D:\Programme\Tobit ClipInc\Server\ClipInc-Server.exe
D:\Programme\Tobit ClipInc\Server\ClipInc-Server.exe
C:\Programme\Gemeinsame Dateien\MicroWorld\Agent\MWASER.EXE
C:\Programme\Gemeinsame Dateien\MicroWorld\Agent\MWAgent.exe
C:\Programme\CyberLink\Shared Files\RichVideo.exe
C:\Programme\HanseNet\HanseNet-Produkte\app\TangoService.exe
C:\WINDOWS\system32\wdfmgr.exe
C:\WINDOWS\System32\alg.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Programme\Gemeinsame Dateien\Teleca Shared\Generic.exe
C:\Programme\Sony Ericsson\Mobile2\Mobile Phone Monitor\epmworker.exe
C:\WINDOWS\system32\cidaemon.exe
C:\PROGRA~1\HanseNet\HANSEN~1\app\TangoManager.exe
C:\Programme\Real\RealPlayer\RealPlay.exe
C:\Programme\MSN Messenger\usnsvc.exe
C:\Programme\WinRAR\WinRAR.exe
C:\DOKUME~1\ADMINI~1\LOKALE~1\Temp\Rar$EX01.922\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://g.msn.de/0SEDEDE/SAOS01?FORM=TOOLBR
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://g.msn.de/0SEDEDE/SAOS01?FORM=TOOLBR
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www1.cae.mypersonalexpression.com/index.pd
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://g.msn.de/0SEDEDE/SAOS01?FORM=TOOLBR
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programme\Java\jre1.6.0_03\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
O4 - HKLM\..\Run: [ATIPTA] C:\Programme\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programme\Java\jre1.6.0_03\bin\jusched.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Programme\Gemeinsame Dateien\Ahead\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [Sony Ericsson PC Suite] "C:\Programme\Sony Ericsson\Mobile2\Application Launcher\Application Launcher.exe" /startoptions
O4 - HKLM\..\Run: [PPMemCheck] C:\Programme\PestPatrol\PPMemCheck.exe
O4 - HKLM\..\Run: [CookiePatrol] C:\Programme\PestPatrol\CookiePatrol.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Programme\Gemeinsame Dateien\Real\Update_OB\realsched.exe"  -osboot
O4 - HKLM\..\Run: [WinampAgent] C:\Programme\Winamp\winampa.exe
O4 - HKLM\..\Run: [ClipIncSrvTray] "D:\Programme\Tobit ClipInc\Player\ClipIncTray.exe"
O4 - HKLM\..\Run: [SmcService] D:\PROGRA~1\Sygate\SPF\smc.exe -startgui
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVG7\avgcc.exe /STARTUP
O4 - HKCU\..\Run: [MsnMsgr] "C:\Programme\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [TangoManager] C:\Programme\HanseNet\HanseNet-Produkte\app\TangoManager.exe
O4 - HKCU\..\RunOnce: [FFTI] C:\Dokumente und Einstellungen\Administrator\Anwendungsdaten\Mozilla\Firefox\Profiles\5vl0ga8c.default\extensions\{B13721C7-F507-4982-B2E5-502A71474FED}\ffti.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /DestPath="C:\Dokumente und Einstellungen\Administrator\Anwendungsdaten\Mozilla\Firefox\Profiles/5vl0ga8c.default\extensions\{B13721C7-F507-4982-B2E5-502A71474FED}"
O8 - Extra context menu item: Add to Windows &Live Favorites - http://favorites.live.com/quickadd.aspx
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programme\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Konsole - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programme\Java\jre1.6.0_03\bin\ssv.dll
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: {BD8667B7-38D8-4C77-B580-18C3E146372C} (Creative Toolbox Plug-in) - http://caebmm.imgag.com/imgag/cp/install/crusher-cae.cab
O16 - DPF: {EF791A6B-FC12-4C68-99EF-FB9E207A39E6} (McFreeScan Class) - http://download.mcafee.com/molbin/iss-loc/mcfscan/2,2,0,4969/mcfscan.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{3B016EF4-3D1F-4D6D-B002-69FBC33F4375}: NameServer = 192.168.122.252,192.168.122.253
O17 - HKLM\System\CCS\Services\Tcpip\..\{9ED7225D-1895-4E7E-B06B-5FFCDFDAA0AC}: NameServer = 62.109.123.6 213.191.92.87
O17 - HKLM\System\CS1\Services\Tcpip\..\{3B016EF4-3D1F-4D6D-B002-69FBC33F4375}: NameServer = 192.168.122.252,192.168.122.253
O17 - HKLM\System\CS2\Services\Tcpip\..\{3B016EF4-3D1F-4D6D-B002-69FBC33F4375}: NameServer = 192.168.122.252,192.168.122.253
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\GEMEIN~1\Skype\SKYPE4~1.DLL
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: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
O23 - Service: ClipInc 001 (ClipInc001) - Unknown owner - D:\Programme\Tobit ClipInc\Server\ClipInc-Server.exe
O23 - Service: ClipInc 002 (ClipInc002) - Unknown owner - D:\Programme\Tobit ClipInc\Server\ClipInc-Server.exe
O23 - Service: ClipInc 003 (ClipInc003) - Unknown owner - D:\Programme\Tobit ClipInc\Server\ClipInc-Server.exe
O23 - Service: ClipInc 004 (ClipInc004) - Unknown owner - D:\Programme\Tobit ClipInc\Server\ClipInc-Server.exe
O23 - Service: ClipInc 005 (ClipInc005) - Unknown owner - D:\Programme\Tobit ClipInc\Server\ClipInc-Server.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programme\Gemeinsame Dateien\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: MWAgent - MicroWorld Technologies Inc. - C:\Programme\Gemeinsame Dateien\MicroWorld\Agent\MWASER.EXE
O23 - Service: NBService - Nero AG - C:\Programme\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Programme\CyberLink\Shared Files\RichVideo.exe
O23 - Service: Sygate Personal Firewall (SmcService) - Sygate Technologies, Inc. - D:\Programme\Sygate\SPF\smc.exe
O23 - Service: Tango Service (TangoService) - Unknown owner - C:\Programme\HanseNet\HanseNet-Produkte\app\TangoService.exe
O23 - Service: TuneUp WinStyler Theme Service (TUWinStylerThemeSvc) - TuneUp Software GmbH - D:\Programme\TuneUp Utilities 2006\WinStylerThemeSvc.exe

@nicole78w

O4 - HKCU\..\RunOnce: [FFTI] C:\Dokumente und Einstellungen\Administrator\Anwendungsdaten\Mozilla\Firefox\Profiles\5vl0ga8c.default\extensions\{B1 3721C7-F507-4982-B2E5-502A71474FED}\ffti.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /DestPath="C:\Dokumente und Einstellungen\Administrator\Anwendungsdaten\Mozilla\Firefox\Profiles/5vl0ga8c.default\extensions\{B13721C7-F507-4982-B2E5-502A71474FED}"

So was sehe ich zum ersten mal ind vermute: du hast mind. einen Firefox-Addon nicht von der Mozilla-Seite installiert. Fixe diesen Eintrag und entferne alle AddOns aus dem FF, die nicht von Mozilla stammen.