Danke für die Antwort.
hier die logfile.
Logfile of HijackThis v1.99.1
Scan saved at 19:49:13, on 02.01.2006
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\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\spoolsv.exe
C:\WINDOWS\System32\Ati2evxx.exe
C:\Programme\AVPersonal\AVWUPSRV.EXE
C:\WINDOWS\system32\oodag.exe
C:\Programme\Tiny Personal Firewall\persfw.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\Programme\AVPersonal\AVGNT.EXE
C:\Programme\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Programme\iTunes\iTunesHelper.exe
C:\Programme\QuickTime\qttask.exe
C:\WINDOWS\system32\carpserv.exe
C:\Programme\iPod\bin\iPodService.exe
C:\PROGRA~1\BILLPS~1\WINPAT~1\winpatrol.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programme\Gemeinsame Dateien\Ahead\lib\NMBgMonitor.exe
C:\PROGRAMME\AVPERSONAL\AVGUARD.EXE
C:\Programme\WinRAR\WinRAR.exe
C:\DOKUME~1\SERVER~1\LOKALE~1\Temp\Rar$EX00.532\HijackThis.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://de.rd.yahoo.com/customize/ie/defaults/sp/msgr7/*http://de.search.yahoo.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.t-online.de/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://de.rd.yahoo.com/customize/ie/defaults/su/msgr7/*http://de.search.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://de.rd.yahoo.com/customize/ie/defaults/sp/msgr7/*http://de.search.yahoo.com
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://de.rd.yahoo.com/customize/ie/defaults/su/msgr7/*http://de.search.yahoo.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = c:\WINDOWS\PCHealth\HelpCtr\System\panels\blank.htm
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://windowsupdate.microsoft.com/
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programme\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programme\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [AVGCtrl] C:\Programme\AVPersonal\AVGNT.EXE /min
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Programme\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [iTunesHelper] "C:\Programme\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [CookiePatrol] C:\Programme\PestPatrol\CookiePatrol.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programme\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [KAVPersonal50] "C:\Programme\Kaspersky Lab\Kaspersky Anti-Virus Personal\kav.exe" /minimize
O4 - HKLM\..\Run: [CARPService] carpserv.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [WinPatrol] C:\PROGRA~1\BILLPS~1\WINPAT~1\winpatrol.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [bgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Programme\Gemeinsame Dateien\Ahead\lib\NMBgMonitor.exe"
O8 - Extra context menu item: &Search - http://kp.bar.need2find.com/KP/menusearch.html?p=KP
O8 - Extra context menu item: Nach Microsoft &Excel exportieren - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\PROGRA~1\Yahoo!\Common\yhexbmesde.dll
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\PROGRA~1\Yahoo!\Common\yhexbmesde.dll
O9 - Extra button: Recherchieren - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Programme\Yahoo!\Common\yinsthelper.dll
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1130777664339
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1130785993366
O23 - Service: AntiVir Service (AntiVirService) - H+BEDV Datentechnik GmbH - C:\PROGRAMME\AVPERSONAL\AVGUARD.EXE
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: AntiVir Update (AVWUpSrv) - H+BEDV Datentechnik GmbH, Germany - C:\Programme\AVPersonal\AVWUPSRV.EXE
O23 - Service: AVM FRITZ!web Routing Service (de_serv) - Unknown owner - C:\Programme\Gemeinsame Dateien\AVM\de_serv.exe (file missing)
O23 - Service: iPod Service (iPodService) - Apple Computer, Inc. - C:\Programme\iPod\bin\iPodService.exe
O23 - Service: O&O Defrag - O&O Software GmbH - C:\WINDOWS\system32\oodag.exe
O23 - Service: Tiny Personal Firewall (PersFw) - Tiny Software - C:\Programme\Tiny Personal Firewall\persfw.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe