昨天中午在自动弹出了一个广告网页后，系统运行速度开始明显下降，不开任何程序的情况下系统CPU占用率一直保持在100%，只有间断的下降，随后又升至100%，瑞星杀毒更新到了最新版本也查不出任何病毒，希望高手们可以帮我解决！！！

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:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Network Monitor\netmon.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\System32\rundll32.exe
C:\Program Files\Rising\Rav\RavTask.exe
C:\PROGRA~1\Yahoo!\ASSIST~1\YLive.exe
C:\PROGRA~1\Yahoo!\Assistant\yassistse.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\racer-henan-cnc\racer.exe
C:\Program Files\racer-henan-cnc\RacerKp.exe
C:\WINDOWS\System32\conime.exe
C:\WINDOWS\system32\cmd.exe
C:\WINDOWS\system32\rundll32.exe
C:\Program Files\Rising\Rav\Ravmond.exe
C:\Program Files\Rising\Rav\RAVMON.EXE
C:\Program Files\Rising\Rav\RavStub.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\WINDOWS\system32\NOTEPAD.EXE
D:\瑞星防火墙\Rfw\rfwmain.exe
d:\瑞星防火墙\rfw\rfwsrv.exe
C:\WINDOWS\explorer.exe
C:\WINDOWS\System32\taskmgr.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\WinRAR\WinRAR.exe
C:\DOCUME~1\WFY\LOCALS~1\Temp\Rar$EX00.188\HijackThis1991zww.exe

R3 - URLSearchHook: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\assist\yasbar.dll
O1 - Hosts: 222.76.249.6 www.baidu.com/s?wd=%C1%F9%BA%CF%B2%CA&cl=3
O1 - Hosts: 222.76.249.6 baidu.com/s?wd=%C1%F9%BA%CF%B2%CA&cl=3
O1 - Hosts: 222.76.249.6 www.baidu.com
O1 - Hosts: 222.76.249.6 baidu.com
O1 - Hosts: 222.76.249.6 www.baidu.com
O1 - Hosts: 222.76.249.6 baidu.com
O1 - Hosts: 222.76.249.6 www.cns.3721.com/cns.dll?argse=new3721&fw=home&p=%C1%F9%BA%CF%B2%CA
O1 - Hosts: 222.76.249.6 cns.3721.com/cns.dll?argse=new3721&fw=home&p=%C1%F9%BA%CF%B2%CA
O1 - Hosts: 222.76.249.6 www.3721.com
O1 - Hosts: 222.76.249.6 3721.com
O1 - Hosts: 222.76.249.6 www.3721.com
O1 - Hosts: 222.76.249.6 3721.com
O1 - Hosts: 222.76.249.6 www.88009.com
O1 - Hosts: 222.76.249.6 88009.com
O1 - Hosts: 222.76.249.6 www.58567.com
O1 - Hosts: 222.76.249.6 58567.com
O1 - Hosts: 222.76.249.6 www.y3999.com
O1 - Hosts: 222.76.249.6 y3999.com
O1 - Hosts: 222.76.249.6 www.wh678.com
O1 - Hosts: 222.76.249.6 wh678.com
O1 - Hosts: 222.76.249.6 www.880990.com
O1 - Hosts: 222.76.249.6 880990.com
O1 - Hosts: 222.76.249.6 www.tu188.com
O1 - Hosts: 222.76.249.6 tu188.com
O1 - Hosts: 222.76.249.6 www.cp3721.com
O1 - Hosts: 222.76.249.6 cp3721.com
O1 - Hosts: 222.76.249.6 www.tk6.cn
O1 - Hosts: 222.76.249.6 tk6.cn
O1 - Hosts: 222.76.249.6 www.234110.com
O1 - Hosts: 222.76.249.6 234110.com
O1 - Hosts: 222.76.249.6 www.77997.com
O1 - Hosts: 222.76.249.6 77997.com
O1 - Hosts: 222.76.249.6 www.311366.com
O1 - Hosts: 222.76.249.6 311366.com
O1 - Hosts: 222.76.249.6 www.cp111.com
O1 - Hosts: 222.76.249.6 cp111.com
O1 - Hosts: 222.76.249.6 www.q246.com
O1 - Hosts: 222.76.249.6 q246.com
O1 - Hosts: 222.76.249.6 www.tm526.com
O1 - Hosts: 222.76.249.6 tm526.com
O1 - Hosts: 222.76.249.6 www.736677.com
O1 - Hosts: 222.76.249.6 736677.com
O1 - Hosts: 222.76.249.6 www.mh8888.com
O1 - Hosts: 222.76.249.6 mh8888.com
O1 - Hosts: 222.76.249.6 www.70.hk
O1 - Hosts: 222.76.249.6 70.hk
O1 - Hosts: 222.76.249.6 www.456555.cc
O1 - Hosts: 222.76.249.6 456555.cc
O1 - Hosts: 222.76.249.6 www.558.hk
O1 - Hosts: 222.76.249.6 558.hk
O1 - Hosts: 222.76.249.6 www.mark68.net
O1 - Hosts: 222.76.249.6 mark68.net
O1 - Hosts: 222.76.249.6 www.567238.com
O1 - Hosts: 222.76.249.6 567238.com
O1 - Hosts: 222.76.249.6 www.tk288.com
O1 - Hosts: 222.76.249.6 tk288.com
O1 - Hosts: 222.76.249.6 www.dv38.com
O1 - Hosts: 222.76.249.6 dv38.com
O1 - Hosts: 222.76.249.6 www.qq03.com
O1 - Hosts: 222.76.249.6 qq03.com
O1 - Hosts: 222.76.249.6 www.mm08.com
O1 - Hosts: 222.76.249.6 mm08.com
O1 - Hosts: 222.76.249.6 www.qq636.com

O1 - Hosts: 222.76.249.6 qq636.com
O1 - Hosts: 222.76.249.6 www.312666.com
O1 - Hosts: 222.76.249.6 312666.com
O1 - Hosts: 222.76.249.6 www.372c.com
O1 - Hosts: 222.76.249.6 372c.com
O1 - Hosts: 222.76.249.6 www.dv38.com
O1 - Hosts: 222.76.249.6 dv38.com
O1 - Hosts: 222.76.249.6 www.q246.com
O1 - Hosts: 222.76.249.6 q246.com
O1 - Hosts: 222.76.249.6 www.372c.com
O1 - Hosts: 222.76.249.6 372c.com
O1 - Hosts: 222.76.249.6 www.cp111.com
O1 - Hosts: 222.76.249.6 cp111.com
O1 - Hosts: 222.76.249.6 www.cp3721.com
O1 - Hosts: 222.76.249.6 cp3721.com
O1 - Hosts: 222.76.249.6 www.799799.cn
O1 - Hosts: 222.76.249.6 799799.cn
O1 - Hosts: 222.76.249.6 www.q246.com
O1 - Hosts: 222.76.249.6 q246.com
O1 - Hosts: 222.76.249.6 www.helpor.net
O1 - Hosts: 222.76.249.6 helpor.net
O1 - Hosts: 222.76.249.6 www.mm559.com
O1 - Hosts: 222.76.249.6 mm559.com
O1 - Hosts: 222.76.249.6 www.8888kk.com
O1 - Hosts: 222.76.249.6 8888kk.com
O1 - Hosts: 222.76.249.6 www.6789kk.cn
O1 - Hosts: 222.76.249.6 6789kk.cn
O1 - Hosts: 222.76.249.6 www.t4567.com
O1 - Hosts: 222.76.249.6 t4567.com
O1 - Hosts: 222.76.249.6 www.tmk999.com
O1 - Hosts: 222.76.249.6 tmk999.com
O1 - Hosts: 222.76.249.6 www.2006tk.com
O1 - Hosts: 222.76.249.6 2006tk.com
O1 - Hosts: 222.76.249.6 www.lhc88.org
O1 - Hosts: 222.76.249.6 lhc88.org
O1 - Hosts: 222.76.249.6 www.xg66678.com
O1 - Hosts: 222.76.249.6 xg66678.com
O1 - Hosts: 222.76.249.6 www.666345.com
O2 - BHO: (no name) - {033B37E9-7A66-4161-A4CE-D1EC70A2A6E6} - C:\WINDOWS\System32\ddcyw.dll
O2 - BHO: yPhtb - {33BBE430-0E42-4f12-B075-8D21ACB10DCB} - C:\PROGRA~1\Yahoo!\ASSIST~1\assist\yphtb.dll
O2 - BHO: Anti Fish - {38928D50-8A48-44C2-945F-D2F23F771410} - C:\PROGRA~1\Yahoo!\ASSIST~1\assist\yangling.dll
O2 - BHO: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\assist\yasbar.dll
O2 - BHO: YDragSearch - {62EED7C6-9F02-42f9-B634-98E2899E147B} - C:\PROGRA~1\Yahoo!\ASSIST~1\assist\YDRAGS~1.DLL
O2 - BHO: (no name) - {6D794CB4-C7CD-4c6f-BFDC-9B77AFBDC02C} - C:\WINDOWS\System32\qomkkjj.dll
O2 - BHO: BandIE Class - {77FEF28E-EB96-44FF-B511-3185DEA48697} - C:\PROGRA~1\baidu\bar\baidubar.dll
O2 - BHO: IE - {D157330A-9EF3-49F8-9A67-4141AC41ADD4} - C:\WINDOWS\downlo~1\CnsHook.dll
O3 - IE工具栏增项: 电台(&R) - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - IE工具栏增项: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - IE工具栏增项: 百度超级搜霸 - {B580CF65-E151-49C3-B73F-70B13FCA8E86} - C:\PROGRA~1\baidu\bar\baidubar.dll
O3 - IE工具栏增项: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\assist\yasbar.dll
O4 - 启动项HKLM\\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - 启动项HKLM\\Run: [PHIME2002ASync] C:\WINDOWS\System32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - 启动项HKLM\\Run: [PHIME2002A] C:\WINDOWS\System32\IME\TINTLGNT\TINTSETP.EXE /IMEName
O4 - 启动项HKLM\\Run: [NvCplDaemon] RUNDLL32.EXE NvQTwk,NvCplDaemon initialize
O4 - 启动项HKLM\\Run: [nwiz] nwiz.exe /install
O4 - 启动项HKLM\\Run: [WinDLL (wchshield.exe)] rundll32.exe C:\WINDOWS\System32\wchshield.exe,start
O4 - 启动项HKLM\\Run: [keyboard] c:\\keyboard25.exe
O4 - 启动项HKLM\\Run: [defender] c:\\defender23a.exe
O4 - 启动项HKLM\\Run: [RavTask] "C:\Program Files\Rising\Rav\RavTask.exe" -system
O4 - 启动项HKLM\\Run: [Network Associates Error Reporting Service] ; "C:\Program Files\Common Files\Network Associates\TalkBack\tbmon.exe"
O4 - 启动项HKLM\\Run: [YLive.exe] C:\PROGRA~1\Yahoo!\ASSIST~1\YLive.exe
O4 - 启动项HKLM\\Run: [yassistse] "C:\PROGRA~1\Yahoo!\Assistant\yassistse.exe"
O4 - 启动项HKLM\\Run: [RfwMain] "D:\瑞星防火墙\Rfw\rfwmain.exe" -Startup
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - Global Startup: 河南网通宽带用户客户端.lnk = C:\Program Files\racer-henan-cnc\racer.exe
O8 - IE右键菜单中的新增项目: &使用迅雷下载 - D:\xunlei\Program\GetUrl.htm
O8 - IE右键菜单中的新增项目: &使用迅雷下载全部链接 - D:\xunlei\Program\GetAllUrl.htm
O8 - IE右键菜单中的新增项目: Google 搜索(&G) - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsearch.html
O8 - IE右键菜单中的新增项目: 上传到QQ网络硬盘 - D:\QQ\AddToNetDisk.htm
O8 - IE右键菜单中的新增项目: 反向链接 - res://C:\Program Files\Google\GoogleToolbar1.dll/cmbacklinks.html
O8 - IE右键菜单中的新增项目: 添加到QQ自定义面板 - D:\QQ\AddPanel.htm
O8 - IE右键菜单中的新增项目: 添加到QQ表情 - D:\QQ\AddEmotion.htm
O8 - IE右键菜单中的新增项目: 添加到雅虎订阅(&Y) - res://C:\PROGRA~1\Yahoo!\ASSIST~1\assist\yrss.dll/YRSSMENUEXT
O8 - IE右键菜单中的新增项目: 用QQ彩信发送该图片 - D:\QQ\SendMMS.htm
O8 - IE右键菜单中的新增项目: 百度--MP3搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDUMP3.HTM
O8 - IE右键菜单中的新增项目: 百度--图片搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDUIMG.HTM
O8 - IE右键菜单中的新增项目: 百度--新闻搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDUNEWS.HTM
O8 - IE右键菜单中的新增项目: 百度--歌词搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDULYRIC.HTM
O8 - IE右键菜单中的新增项目: 百度--网页搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDUSEARCH.HTM
O8 - IE右键菜单中的新增项目: 百度--词典搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDU_DIC.HTM
O8 - IE右键菜单中的新增项目: 百度--贴吧搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDUPOST.HTM
O8 - IE右键菜单中的新增项目: 类似网页 - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsimilar.html
O8 - IE右键菜单中的新增项目: 缓存的网页快照 - res://C:\Program Files\Google\GoogleToolbar1.dll/cmcache.html
O8 - IE右键菜单中的新增项目: 翻译英文字词(&T) - res://C:\Program Files\Google\GoogleToolbar1.dll/cmwordtrans.html
O8 - IE右键菜单中的新增项目: 雅虎搜索 - res://C:\PROGRA~1\Yahoo!\Assistant\Assist\yasbar.dll/246
O9 - 浏览器额外的按钮: Yahoo 1G电邮 - {507F9113-CD77-4866-BA92-0E86DA3D0B97} - http://cn.zs.yahoo.com/cnsbutton.htm?source=cns&btn=yahoomail (file missing)
O9 - 浏览器额外的按钮: 寻宝乐趣多 - {59BC54A2-56B3-44a0-93E5-432D58746E26} - http://cn.zs.yahoo.com/cnsbutton.htm?source=cns&btn=taobao (file missing)
O9 - 浏览器额外的按钮: 雅虎助手 - {5D73EE86-05F1-49ed-B850-E423120EC338} - http://cn.zs.yahoo.com/cnsbutton.htm?source=cns&btn=yassist (file missing)
O9 - 浏览器额外的按钮: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - 浏览器额外的“工具”菜单项: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - 浏览器额外的按钮: QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - D:\QQ\QQ.EXE
O9 - 浏览器额外的“工具”菜单项: 腾讯QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - D:\QQ\QQ.EXE
O9 - 浏览器额外的按钮: (no name) - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - D:\QQ\QQIEHelper.dll
O9 - 浏览器额外的“工具”菜单项: QQ炫彩工具条设置 - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - D:\QQ\QQIEHelper.dll
O9 - 浏览器额外的按钮: 情景聊天 - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - http://cn.zs.yahoo.com/cnsbutton.htm?source=cns&btn=yahoomsg (file missing)
O9 - 浏览器额外的按钮: (no name) - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://cn.zs.yahoo.com/cnsbutton.htm?source=cns&btn=repair (file missing)
O9 - 浏览器额外的“工具”菜单项: 修复浏览器 - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://cn.zs.yahoo.com/cnsbutton.htm?source=cns&btn=repair (file missing)
O9 - 浏览器额外的按钮: (no name) - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://cn.zs.yahoo.com/cnsbutton.htm?source=cns&btn=clean (file missing)
O9 - 浏览器额外的“工具”菜单项: 清理上网记录 - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://cn.zs.yahoo.com/cnsbutton.htm?source=cns&btn=clean (file missing)
O11 - Options group: [!CNS]  网络实名
O18 - 列举现有的协议: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O20 - Winlogon Notify: ddcyw - C:\WINDOWS\System32\ddcyw.dll
O20 - Winlogon Notify: qomkkjj - C:\WINDOWS\SYSTEM32\qomkkjj.dll
O23 - NT 服务: Network Monitor - Unknown owner - C:\Program Files\Network Monitor\netmon.exe
O23 - NT 服务: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - NT 服务: Rising Proxy  Service (RfwProxySrv) - Beijing Rising Technology Co., Ltd. - d:\瑞星防火墙\rfw\rfwproxy.exe
O23 - NT 服务: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Co., Ltd. - d:\瑞星防火墙\rfw\rfwsrv.exe
O23 - NT 服务: Rising Process Communication Center (RsCCenter) - Beijing Rising Technology Co., Ltd. - C:\Program Files\Rising\Rav\CCenter.exe
O23 - NT 服务: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - C:\Program Files\Rising\Rav\Ravmond.exe