Logfile of HijackThis v1.99.0
Scan saved at 8:59:13, on 2006-3-27
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:\WINNT\System32\termsrv.exe
C:\WINNT\system32\svchost.exe
C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\Program Files\Symantec AntiVirus\DefWatch.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
E:\ichat\ichat.exe
d:\PROGRA~1\MICROS~1\MSSQL\binn\sqlservr.exe
C:\WINNT\System32\svchost.exe
C:\Program Files\Symantec AntiVirus\SavRoam.exe
C:\Program Files\Serv-U\ServUDaemon.exe
C:\WINNT\System32\svchost.exe
C:\WINNT\System32\lserver.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\Dfssvc.exe
C:\WINNT\system32\inetsrv\inetinfo.exe
C:\Program Files\Common Files\System\MSSearch\Bin\mssearch.exe
C:\WINNT\Explorer.EXE
C:\WINNT\System32\mdm.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\PROGRA~1\SYMANT~2\VPTray.exe
C:\WINNT\system32\internat.exe
C:\Program Files\Microsoft SQL Server\80\Tools\Binn\sqlmangr.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\rdpclip.exe
C:\WINNT\Explorer.EXE
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\WINNT\system32\internat.exe
C:\Program Files\Microsoft SQL Server\80\Tools\Binn\sqlmangr.exe
C:\WINNT\system32\taskmgr.exe
E:\HijackThis\HijackThis.exe
C:\WINNT\system32\mmc.exe

O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~2\VPTray.exe
O4 - HKCU\..\Run: [Internat.exe] internat.exe
O4 - Global Startup: 服务管理器.lnk = C:\Program Files\Microsoft SQL Server\80\Tools\Binn\sqlmangr.exe
O15 - Trusted Zone: http://update.microsoft.com
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1139985034734
O16 - DPF: {A2D29E4D-143E-4DA0-B800-2449402EE37F} (CmsEditorInterface Class) - http://202.103.41.59:8080/cms/system/editor/CmsEditor.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://202.103.41.68:81/pub/shockwave/cabs/flash/swflash.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{734860AC-7D8E-4DCB-94F2-2217767D9E88}: NameServer = 202.103.41.58,202.103.0.117
O17 - HKLM\System\CS1\Services\Tcpip\..\{734860AC-7D8E-4DCB-94F2-2217767D9E88}: NameServer = 202.103.41.58,202.103.0.117
O17 - HKLM\System\CS2\Services\Tcpip\..\{734860AC-7D8E-4DCB-94F2-2217767D9E88}: NameServer = 202.103.41.58,202.103.0.117
O23 - Service: Symantec Event Manager - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
O23 - Service: Symantec AntiVirus Definition Watcher - Symantec Corporation - C:\Program Files\Symantec AntiVirus\DefWatch.exe
O23 - Service: COM+ Event System Applications - Unknown - C:\WINNT\tasks\svchost.exe
O23 - Service: SAVRoam - symantec - C:\Program Files\Symantec AntiVirus\SavRoam.exe
O23 - Service: Serv-U FTP 服务器 - Cat Soft - C:\Program Files\Serv-U\ServUDaemon.exe
O23 - Service: Symantec Network Drivers Service - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec AntiVirus - Symantec Corporation - C:\Program Files\Symantec AntiVirus\Rtvscan.exe

系统进程存在IEXPL0RE.exe文件..
cpu资源没搁30多秒会被IEXPL0RE.exe占用到100%，持续10秒钟
请高手指点怎么解决，感谢