今天下午在上网时无意被安装了易趣等垃圾软件,之后就时不时的会弹出一些含有垃圾信息的网页,请问应该怎么解决

请下载Hijackthis1.99.1汉化版扫描将日志粘贴上来
下载地址：http://free5.ys168.com/?ufwihgu168

HijackThis_815汉化版扫描日志 V1.99.1
保存于      18:34:52, 日期 2006-8-26
操作系统：  Windows XP SP2 (WinNT 5.01.2600)
浏览器：    Internet Explorer v6.00 SP2 (6.00.2900.2180)

当前运行的进程：         
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Rising\Rav\CCenter.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\Program Files\Rising\Rav\Ravmond.exe
c:\program files\rising\rfw\rfwsrv.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Rising\Rav\RavStub.exe
C:\WINDOWS\Explorer.EXE
c:\program files\rising\rfw\RfwMain.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\Rising\Rav\RavTask.exe
C:\Program Files\Rising\Rav\Ravmon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\ChinaNet\VnetClient.exe
C:\Program Files\Tencent\QQ\QQ.exe
C:\Program Files\Tencent\QQ\TIMPlatform.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Documents and Settings\Administrator\桌面\Hijackthis1991zww\HijackThis1991zww.exe

R3 - 默认的URLSearchHook丢失。用HijackThis修复
F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\userinit.exe,C:\WINDOWS\system32\updown.exe
O2 - BHO: Vision - {6671A431-5C3D-463d-A7CF-5587F9B7E191} - C:\PROGRA~1\MMSASS~1\mmsass~1.dll (file missing)
O2 - BHO: (no name) - {6671A431-5C3D-463d-A7CF-5587F9B7E191}? - (no file)
O3 - IE工具栏增项: 卡卡上网安全助手 - {DB9ECD4F-FB8F-4311-B3CE-90B976C2707C} - C:\WINDOWS\system32\kakatool.dll
O4 - 启动项HKLM\\Run: [SoundMan] SOUNDMAN.EXE
O4 - 启动项HKLM\\Run: [RavTask] "C:\Program Files\Rising\Rav\RavTask.exe" -system
O4 - 启动项HKLM\\Run: [RfwMain] "C:\Program Files\Rising\Rfw\rfwmain.exe" -Startup
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Global Startup: 星空极速.lnk = C:\Program Files\ChinaNet\VnetClient.exe
O14 - IERESET.INF: START_PAGE_URL=http://www.tomatolei.com
O17 - HKLM\System\CCS\Services\Tcpip\..\{DE8FFD09-292B-4A2C-A94B-55FC36672D2A}: NameServer = 202.96.209.134 202.96.209.6
O18 - 列举现有的协议: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - 列举现有的协议: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O23 - NT 服务: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - NT 服务: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - NT 服务: Rising Proxy  Service (RfwProxySrv) - Beijing Rising Technology Co., Ltd. - c:\program files\rising\rfw\rfwproxy.exe
O23 - NT 服务: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Co., Ltd. - c:\program files\rising\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

已经好了,帮忙看下了...谢谢!!!!

运行Hijackthis，把下面的选中打上钩，修复
R3 - 默认的URLSearchHook丢失。用HijackThis修复
F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\userinit.exe,C:\WINDOWS\system32\updown.exe
O2 - BHO: Vision - {6671A431-5C3D-463d-A7CF-5587F9B7E191} - C:\PROGRA~1\MMSASS~1\mmsass~1.dll (file missing)
O2 - BHO: (no name) - {6671A431-5C3D-463d-A7CF-5587F9B7E191}? - (no file)


删除
C:\WINDOWS\system32\updown.exe