开机拨号后总弹出一个广告页，每次都不一样．
用hijackthis扫描日志如下：
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:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\ChinaNet\VnetClient.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Maxthon\Maxthon.exe
C:\Program Files\WinRAR\WinRAR.exe
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\Rar$EX03.312\HijackThis.exe
O3 - Toolbar: BitComet工具栏 - {3F1ABCDB-A875-46c1-8345-B72A4567E486} - d:\Program Files\BitComet\BitCometBar\BitCometBar0.6.dll
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: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [NvCplDaemon] ; RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [NvMediaCenter] ; RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [KAVPersonal50] "C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus Personal\kav.exe" /minimize
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Global Startup: 星空极速.lnk = C:\Program Files\ChinaNet\VnetClient.exe
O8 - Extra context menu item: &使用迅雷下载 - d:\Program Files\Thunder Network\Thunder\Program\GetUrl.htm
O8 - Extra context menu item: &使用迅雷下载全部链接 - d:\Program Files\Thunder Network\Thunder\Program\GetAllUrl.htm
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: 导出到 Microsoft Office Excel(&X) - res://D:\PROGRA~1\MICROS~1\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} - D:\Program Files\浩方对战平台\GameClient.exe
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: (no name) - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\WINDOWS\system32\shdocvw.dll
O9 - Extra 'Tools' menuitem: QQ炫彩工具条设置 - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\WINDOWS\system32\shdocvw.dll
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
O10 - Unknown file in Winsock LSP: c:\windows\system32\wshcon32.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\wshcon32.dll
O16 - DPF: {8FCDF9D9-A28B-480F-8C3D-581F119A8AB8} - http://static.zangocash.com/cab/Seekmo/ie/bridge-c15.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{833A4219-B85F-4DE3-9665-DBAFE3F3D052}: NameServer = 60.191.244.5 60.191.244.2
O23 - Service: Autodesk Licensing Service - Autodesk - C:\Program Files\Common Files\Autodesk Shared\Service\AdskScSrv.exe
O23 - Service: kavsvc - Kaspersky Lab - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus Personal\kavsvc.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
请高手指点，不胜感激
