[Win2000] Cisvc.exe al 100% Cpu

[Duncandg]

Mi sono accorto che da un paio di giorni questo file va a occupare il 100% della Cpu rallentanto notevolmente il sistema

premettendo che ho guardato di non aver virus strani (ho fatto persino il controllo per il sasser) cosa puo' essere help please

probabilmente questo problema è l'autore del freeze del pc

questo il mio log di hijackthis

Logfile of HijackThis v1.99.1
Scan saved at 1.55.55, on 02/01/2006
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\Programmi\Sygate\SPF\smc.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\Programmi\AntiVir PersonalEdition Classic\sched.exe
C:\Programmi\AntiVir PersonalEdition Classic\avguard.exe
C:\WINNT\System32\cisvc.exe
C:\WINNT\System32\svchost.exe
C:\WINNT\system32\stisvc.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\System32\MsPMSPSv.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\Explorer.EXE
C:\Programmi\MSN Messenger\MsnMsgr.Exe
C:\Documents and Settings\Administrator\Documenti\FxSasser.exe
C:\PROGRA~1\WINZIP\winzip32.exe
C:\PROGRA~1\WINZIP\winzip32.exe
C:\WINNT\System32\cidaemon.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Temp\wz7c0e\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar1.dll
O2 - BHO: MSN Search Toolbar Helper - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\MSN Toolbar Suite\TB\02.05.0000.1082\it-it\msntb.dll
O3 - Toolbar: @msdxmLC.dll,-1@1033,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\System32\msdxm.ocx
O3 - Toolbar: MSN Search Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\MSN Toolbar Suite\TB\02.05.0000.1082\it-it\msntb.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar1.dll
O4 - HKLM\..\Run: [SmcService] C:\PROGRA~1\Sygate\SPF\smc.exe -startgui
O4 - HKLM\..\Run: [DAEMON Tools] "C:\Programmi\DAEMON Tools\daemon.exe" -lang 1033
O4 - HKLM\..\Run: [avgnt] "C:\Programmi\AntiVir PersonalEdition Classic\avgnt.exe" /min
O4 - HKLM\..\Run: [MSConfig] C:\WINNT\system32\msconfig.exe /auto
O4 - HKCU\..\Run: [MsnMsgr] "C:\Programmi\MSN Messenger\MsnMsgr.Exe" /background
O8 - Extra context menu item: &Cerca con Google - res://C:\Programmi\Google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: &MSN Search - res://C:\Programmi\MSN Toolbar Suite\TB\02.05.0000.1082\it-it\msntb.dll/search.htm
O8 - Extra context menu item: &Traduci parola in italiano - res://C:\Programmi\Google\GoogleToolbar1.dll/cmwordtrans.html
O8 - Extra context menu item: Apri in nuova scheda in primo piano - res://C:\Programmi\MSN Toolbar Suite\TAB\02.05.0001.1119\it-it\msntabres.dll/230?a999eeb911a94809a81c6146c2b20b6
O8 - Extra context menu item: Apri in nuova scheda in secondo piano - res://C:\Programmi\MSN Toolbar Suite\TAB\02.05.0001.1119\it-it\msntabres.dll/229?a999eeb911a94809a81c6146c2b20b6
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Link a ritroso - res://C:\Programmi\Google\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: Pagine simili - res://C:\Programmi\Google\GoogleToolbar1.dll/cmsimilar.html
O8 - Extra context menu item: Versione cache della pagina - res://C:\Programmi\Google\GoogleToolbar1.dll/cmcache.html
O9 - Extra button: ICQ Lite - {B863453A-26C3-4e1f-A54D-A2CD196348E9} - C:\Programmi\ICQLite\ICQLite.exe
O9 - Extra 'Tools' menuitem: ICQ Lite - {B863453A-26C3-4e1f-A54D-A2CD196348E9} - C:\Programmi\ICQLite\ICQLite.exe
O16 - DPF: {0E8D0700-75DF-11D3-8B4A-0008C7450C4A} - http://downloadcenter.samsung.com/co...rolLite_EN.cab
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsu...?1134174574078
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsof...?1134178508140
O23 - Service: AntiVir Scheduler (AntiVirScheduler) - H+BEDV Datentechnik GmbH - C:\Programmi\AntiVir PersonalEdition Classic\sched.exe
O23 - Service: AntiVir PersonalEdition Classic Service (AntiVirService) - H+BEDV Datentechnik GmbH - C:\Programmi\AntiVir PersonalEdition Classic\avguard.exe
O23 - Service: Servizio amministrativo di Gestione disco logico (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: Sygate Personal Firewall Pro (SmcService) - Sygate Technologies, Inc. - C:\Programmi\Sygate\SPF\smc.exe

[crazy.cat]

Process File: cisvc or cisvc.exe
Process Name: Microsoft Index Service Helper

Description:
cisvc.exe is a process that belongs to the Microsoft Windows Operating System. It is used to monitor the memory usage in CIDAEMON.exe and prevent low memory problems. This is an essential system process and should not be removed. This program is an essential system process and should not be removed.