本人的电脑最近运行速度突然变慢了很多，已经自己动手卸载了一些不常用的软件，速度依然较慢，联想到网上一些朋友说过电脑速度变慢是中了木马的症状之一，于是特来请教高手。
下面是日志，麻烦看看啊！！

Logfile of HijackThis v1.99.1
Scan saved at 9:57:04, on 2006-10-27
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:\Program Files\Rising\Rav\CCenter.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Rising\Rav\Ravmond.exe
C:\WINDOWS\Explorer.EXE
c:\program files\rising\rfw\rfwsrv.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Rising\Rav\RavStub.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\Rising\Rav\RavTask.exe
C:\Program Files\Rising\Rfw\rfwmain.exe
C:\Program Files\Rising\Rav\Ravmon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
D:\Program Files\Kingsoft\PowerWord 2006\XDICT.EXE
D:\Program Files\eph.exe
C:\WINDOWS\system32\msiexec.exe
C:\Program Files\ChinaNet\VnetClient.exe
C:\Program Files\Super Rabbit\MagicSet\SRCK.EXE
C:\Program Files\GOSURF2\gsfbwsr.exe
C:\Program Files\Thunder Network\Thunder\Program\Thunder5.exe
C:\Program Files\Rising\Rav\RsAgent.exe
C:\WINDOWS\msagent\AgentSvr.exe
D:\Downloads\HijackThis.exe

R3 - URLSearchHook: (no name) - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - (no file)
O4 - HKLM\..\Run: [wallpaper] c:\windows\system32\壁纸自动换.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [IMSCMig] C:\PROGRA~1\COMMON~1\MICROS~1\IME\IMSC40A\IMSCMIG.EXE /Preload
O4 - HKLM\..\Run: [RavTask] "C:\Program Files\Rising\Rav\RavTask.exe" -system
O4 - HKLM\..\Run: [RfwMain] "C:\Program Files\Rising\Rfw\rfwmain.exe" -Startup
O4 - HKLM\..\RunOnce: [RavStub] "C:\Program Files\Rising\Rav\ravstub.exe" /RUNONCE
O4 - HKLM\..\RunOnce: [Super Rabbit SRCK] "C:\Program Files\Super Rabbit\MagicSet\SRCK.exe" /autokill:38,23
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Startup: 金山词霸 2006.lnk = D:\Program Files\Kingsoft\PowerWord 2006\XDICT.EXE
O4 - Startup: 263 DoShow.lnk = ?APPDATA%\Microsoft\Installer\{540F8C95-2C51-4188-A4C7-DFDFBFB0F802}\eph.exe1_540F8C952C514188A4C7DFDFBFB0F802_2.exe
O4 - Startup: 新浪UC.lnk = C:\Program Files\sina\UC\uc.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O8 - Extra context menu item: &使用迅雷下载 - C:\Program Files\Thunder Network\Thunder\Program\GetUrl.htm
O8 - Extra context menu item: &使用迅雷下载全部链接 - C:\Program Files\Thunder Network\Thunder\Program\GetAllUrl.htm
O8 - Extra context menu item: 导出到 Microsoft Office Excel(&X) - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: 启动迅雷 - {0062C9BD-B349-40DE-91A0-755F37ACD559} - C:\Program Files\Thunder Network\Thunder\Thunder.exe
O9 - Extra 'Tools' menuitem: 启动迅雷 - {0062C9BD-B349-40DE-91A0-755F37ACD559} - C:\Program Files\Thunder Network\Thunder\Thunder.exe
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O17 - HKLM\System\CCS\Services\Tcpip\..\{66003BD4-2A80-4465-92EF-B0B9F5587733}: NameServer = 202.96.128.166 202.96.128.86
O17 - HKLM\System\CCS\Services\Tcpip\..\{B499AFC8-295C-49FC-8CAB-BBC8E519C882}: NameServer = 202.96.128.143
O23 - Service: Rising Proxy Service (RfwProxySrv) - Beijing Rising Technology Co., Ltd. - c:\program files\rising\rfw\rfwproxy.exe
O23 - Service: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Co., Ltd. - c:\program files\rising\rfw\rfwsrv.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