Kann Virus in system 32 nicht löschen

Hallo,
in system 32 hat sich ein virus eingeschlichen.
Die datei heißt jkkJCtSL.dll und kann nicht durch avira oder manuell gelöscht werden, außerdem hat die Geschwindigkeit meines Rechners stark nachgelassen
hier noch die Hijackthis logfile:
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 19:12:49, on 11.10.2008
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16705)
Boot mode: Normal

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
O2 - BHO: (no name) - {2AABD0C3-1B64-4DE0-AE17-BBBE806197F2} - C:\WINDOWS\system32\cbXQGwUk.dll
O2 - BHO: (no name) - {8B3B64DD-A6F8-42D8-AA56-95B885DC704C} - C:\WINDOWS\system32\jkkJCtSl.dll
O2 - BHO: {0dfcd5b9-0a1a-cae9-27d4-65e3c2a8a1c8} - {8c1a8a2c-3e56-4d72-9eac-a1a09b5dcfd0} - C:\WINDOWS\system32\nehlmy.dll
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [AVMWlanClient] C:\Programme\avmwlanstick\wlangui.exe
O4 - HKLM\..\Run: [avgnt] "C:\Programme\Avira\AntiVir PersonalEdition Classic\avgnt.exe" /min
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] C:\WINDOWS\system32\spool\drivers\w32x86\3\hpztsb06.exe
O4 - HKLM\..\Run: [StartCCC] "C:\Programme\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe" MSRun
O4 - HKLM\..\Run: [90fd532d] rundll32.exe "C:\WINDOWS\system32\ygyxtces.dll",b
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Programme\Messenger\msmsgs.exe" /background
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 - Global Startup: Microsoft Office.lnk = C:\Programme\Microsoft Office\Office10\OSA.EXE
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: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1220644476332
O20 - AppInit_DLLs: nehlmy.dll
O20 - Winlogon Notify: cbXQGwUk - C:\WINDOWS\SYSTEM32\cbXQGwUk.dll
O23 - Service: Avira AntiVir Personal - Free Antivirus Planer (AntiVirScheduler) - Avira GmbH - C:\Programme\Avira\AntiVir PersonalEdition Classic\sched.exe
O23 - Service: Avira AntiVir Personal - Free Antivirus Guard (AntiVirService) - Avira GmbH - C:\Programme\Avira\AntiVir PersonalEdition Classic\avguard.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: AVM WLAN Connection Service - AVM Berlin - C:\Programme\avmwlanstick\WlanNetService.exe
O23 - Service: PnkBstrA - Unknown owner - C:\WINDOWS\system32\PnkBstrA.exe

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