发了N个论坛了，都没有合适的答案：
我的电脑运行十几分钟后速度就会很慢，经过几个测试软件测试，电脑运行一段时间后性能只有刚启动时的1/3，速度变得很慢。
起初杀病毒重装系统无果，怀疑硬件问题，最后大致排除硬件可能性，又想是病毒做怪，请高手帮我分析下我扫描的结果，看是否有问题：

Logfile of HijackThis v1.99.1
Scan saved at 16:42:36, on 2006-10-2
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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:\Program Files\Rising\Rav\CCenter.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Rising\Rav\Ravmond.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Rising\Rav\RavStub.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\D-Tools\daemon.exe
C:\Program Files\Rising\Rav\RavTask.exe
C:\Program Files\Rising\Rav\Ravmon.exe
C:\WINDOWS\System32\ctfmon.exe
E:\工具软件\ha_hijackthis_1991\HijackThis.exe

O2 - BHO: ThunderBHO - {889D2FEB-5411-4565-8998-1DD2C5261283} - E:\工具软件\迅雷\ComDlls\XunLeiBHO_002.dll
O3 - Toolbar: 电台(&R) - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: (no name) - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - (no file)
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [PHIME2002ASync] C:\WINDOWS\System32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - HKLM\..\Run: [PHIME2002A] C:\WINDOWS\System32\IME\TINTLGNT\TINTSETP.EXE /IMEName
O4 - HKLM\..\Run: [DAEMON Tools-1033] "C:\Program Files\D-Tools\daemon.exe"  -lang 1033
O4 - HKLM\..\Run: [RavTask] "C:\Program Files\Rising\Rav\RavTask.exe" -system
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O8 - Extra context menu item: &使用迅雷下载 - E:\工具软件\迅雷\Program\GetUrl.htm
O8 - Extra context menu item: &使用迅雷下载全部链接 - E:\工具软件\迅雷\Program\GetAllUrl.htm
O9 - Extra button: 启动迅雷 - {0062C9BD-B349-40DE-91A0-755F37ACD559} - E:\工具软件\迅雷\Thunder.exe
O9 - Extra 'Tools' menuitem: 启动迅雷 - {0062C9BD-B349-40DE-91A0-755F37ACD559} - E:\工具软件\迅雷\Thunder.exe
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O14 - IERESET.INF: START_PAGE_URL=about:blank
O17 - HKLM\System\CCS\Services\Tcpip\..\{3222880B-F888-4844-8434-D0FC8401FD02}: NameServer = 192.168.7.125,219.133.31.162
O17 - HKLM\System\CCS\Services\Tcpip\..\{CE3D7A15-A858-40A7-BAE7-32093138CB42}: NameServer = 192.168.7.125,219.133.31.162
O17 - HKLM\System\CS1\Services\Tcpip\..\{3222880B-F888-4844-8434-D0FC8401FD02}: NameServer = 192.168.7.125,219.133.31.162
O17 - HKLM\System\CS2\Services\Tcpip\..\{3222880B-F888-4844-8434-D0FC8401FD02}: NameServer = 192.168.7.125,219.133.31.162
O23 - Service: PsShutdown (PsShutdownSvc) - Unknown owner - C:\WINDOWS\System32\PSSDNSVC.EXE
O23 - Service: Rising Process Communication Center (RsCCenter) - Beijing Rising Technology Co., Ltd. - C:\Program Files\Rising\Rav\CCenter.exe
O23 - Service: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - C:\Program Files\Rising\Rav\Ravmond.exe