高手们，我的电脑浏览器被劫持了，每次开机的时候速度好慢，等好长时间，我打开任务管理器时，发现自动打开一个网址www.c6c7.com.但是通过停止进程，速度又重新回复，请教怎么样才能彻底整好！
   
    现付扫描结果如下

Logfile of HijackThis v1.99.1
Scan saved at （宝贝思思）7:27:37, on 2006-9-30
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:\WINDOWS\System32\svchost.exe
C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
c:\program files\rising\rfw\rfwsrv.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:\WINDOWS\system32\svchost.exe
C:\Program Files\rising\Rav\RavTask.exe
C:\WINDOWS\system32\Rundll32.exe
C:\Program Files\rising\Rav\Ravmon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
c:\program files\rising\rfw\RfwMain.exe
C:\WINDOWS\system32\taskmgr.exe
C:\下载夹\反浏览器劫持\HijackThis.exe

O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: QQIEHelper - {54EBD53A-9BC1-480B-966A-843A333CA162} - D:\Program Files\Tencent\qq\QQIEHelper.dll
O2 - BHO: Helper Class - {6E28339B-7A2A-47B6-AEB2-197004272379} - C:\WINDOWS\vchelper.dll
O2 - BHO: (no name) - {A5366673-E8CA-11D3-9CD9-0090271D075B} - (no file)
O2 - BHO: isObject Class - {BE0B5843-553A-48C2-9A42-258A1D791AFC} - C:\PROGRA~1\pcast\tbcast.dll
O2 - BHO: Enya Popup Blocker - {C68AE9C0-0909-4DDC-B661-C11970042753} - C:\WINDOWS\system32\svrhost.dll
O3 - Toolbar: 博采 - {4DA2EE61-6399-4C39-AEB9-0D990E610D29} - C:\WINDOWS\system32\BOCAIT~1.DLL
O3 - Toolbar: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - C:\PROGRA~1\FlashGet\fgiebar.dll
O3 - Toolbar: (no name) - {D74EC18E-3DDD-4174-B1B1-949FE3B8366D} - (no file)
O3 - Toolbar: BitComet工具栏 - {3F1ABCDB-A875-46c1-8345-B72A4567E486} - C:\Program Files\BitComet\BitCometBar\BitCometBar0.6.dll
O3 - Toolbar: 搜虎 - {7A38130D-BEB7-4d60-BE7A-4C4AB6A85CD1} - C:\WINDOWS\vcbar11.dll
O4 - HKLM\..\Run: [RavTask] "C:\Program Files\rising\Rav\RavTask.exe" -system
O4 - HKLM\..\Run: [YLive.exe] C:\PROGRA~1\Yahoo!\ASSIST~1\YLive.exe
O4 - HKLM\..\Run: [RichMedia] C:\WINDOWS\system32\Rundll32.exe  "C:\PROGRA~1\pcast\tbcast.dll",WaitWindows
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O8 - Extra context menu item: 上传到QQ网络硬盘 - D:\Program Files\Tencent\qq\AddToNetDisk.htm
O8 - Extra context menu item: 使用KuGoo3下载(&K) - D:\Program Files\KuGoo2\KuGoo3DownX.htm
O8 - Extra context menu item: 使用网际快车下载 - C:\Program Files\FlashGet\jc_link.htm
O8 - Extra context menu item: 使用网际快车下载全部链接 - C:\Program Files\FlashGet\jc_all.htm
O8 - Extra context menu item: 导出到 Microsoft Office Excel(&X) - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: 添加到QQ自定义面板 - D:\Program Files\Tencent\qq\AddPanel.htm
O8 - Extra context menu item: 添加到QQ表情 - D:\Program Files\Tencent\qq\AddEmotion.htm
O8 - Extra context menu item: 用QQ彩信发送该图片 - D:\Program Files\Tencent\qq\SendMMS.htm
O9 - Extra button: 浩方对战平台 - {0A155D3C-68E2-4215-A47A-E800A446447A} - E:\CS1.5中文硬盘版\浩方平台\浩方对战平台\GameClient.exe (file missing)
O9 - Extra button: Infofo 工具栏 - {8507326C-B5C1-4559-BB91-0919E753836F} - C:\WINDOWS\system32\shdocvw.dll
O9 - Extra 'Tools' menuitem: Infofo 工具栏 - {8507326C-B5C1-4559-BB91-0919E753836F} - C:\WINDOWS\system32\shdocvw.dll
O9 - Extra button: 信息检索 - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - D:\Program Files\Tencent\qq\QQ.EXE
O9 - Extra 'Tools' menuitem: 腾讯QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - D:\Program Files\Tencent\qq\QQ.EXE
O9 - Extra button: FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - C:\PROGRA~1\FlashGet\flashget.exe
O9 - Extra 'Tools' menuitem: &FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - C:\PROGRA~1\FlashGet\flashget.exe
O9 - Extra button: (no name) - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - D:\Program Files\Tencent\qq\QQIEHelper.dll
O9 - Extra 'Tools' menuitem: QQ炫彩工具条设置 - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - D:\Program Files\Tencent\qq\QQIEHelper.dll
O14 - IERESET.INF: START_PAGE_URL=about:blank
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxsrvc.dll
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1050\Intel 32\IDriverT.exe
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