默认网页改成空白后，然后重启后默认的又变回到www.9991.com,真烦人啊
大家帮帮我分析一下，谢谢
HijackThis@Qoo的扫描日志  V1.97.7
Scan saved at 21:59:52, on 2006-3-23
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:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\Rundll32.exe
C:\Program Files\Common Files\UPDAT\Update.exe
C:\WINDOWS\system32\res.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\SYSTEM32\RUNDLL32.EXE
C:\WINDOWS\system32\nvsvc32.exe
D:\HijackThis1.97\HijackThis.exe

O2 - BHO: ThunderIEHelper - {0005A87D-D626-4B3A-84F9-1D9571695F55} - C:\WINDOWS\system32\xunleibho_v14.dll
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {1A199C20-DE2B-4838-AE3F-B5257ECE2B7E} - C:\Program Files\CoolWebsite\QuickLink.dll
O2 - BHO: QQIEHelper - {54EBD53A-9BC1-480B-966A-843A333CA162} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O2 - BHO: (no name) - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O2 - BHO: (no name) - {AE22AFE5-1EF4-4D25-9E23-D2825FB17DA1} - C:\PROGRA~1\HBClient\hbhelper.dll
O2 - BHO: (no name) - {D74EC18E-3DDD-4174-B1B1-949FE3B8366D} - C:\Program Files\Infofo Bar\infofobar.dll
O3 - Toolbar: ????? - {D74EC18E-3DDD-4174-B1B1-949FE3B8366D} - C:\Program Files\Infofo Bar\infofobar.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: BitCometBar - {3F1ABCDB-A875-46c1-8345-B72A4567E486} - D:\BitComet\BitCometBar\BitCometBar0.3.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: [PHIME2002A] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /IMEName
O4 - HKLM\..\Run: [KAVPersonal50] "C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus Personal\kav.exe" /minimize
O4 - HKLM\..\Run: [RichMedia] C:\WINDOWS\system32\Rundll32.exe  "C:\PROGRA~1\HBClient\hbhelper.dll",WaitWindows
O4 - HKLM\..\Run: [Update] C:\Program Files\Common Files\UPDAT\Update.exe
O4 - HKLM\..\Run: [res] C:\WINDOWS\system32\res.exe
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NVMixerTray] "C:\Program Files\NVIDIA Corporation\NvMixer\NVMixerTray.exe"
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Startup: NTUSER.DAT
O4 - Startup: ntuser.dat.LOG
O4 - Startup: ntuser.ini
O8 - Extra context menu item: &使用迅雷下载 - D:\Thunder Network\Thunder\geturl.htm
O8 - Extra context menu item: &使用迅雷下载全部链接 - D:\Thunder Network\Thunder\getallurl.htm
O8 - Extra context menu item: Google 搜索(&G) - res://c:\program files\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: 上传到QQ网络硬盘 - C:\Program Files\Tencent\QQ\AddToNetDisk.htm
O8 - Extra context menu item: 反向链接 - res://c:\program files\google\GoogleToolbar2.dll/cmbacklinks.html
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 - C:\Program Files\Tencent\QQ\AddPanel.htm
O8 - Extra context menu item: 添加到QQ表情 - C:\Program Files\Tencent\QQ\AddEmotion.htm
O8 - Extra context menu item: 用QQ彩信发送该图片 - C:\Program Files\Tencent\QQ\SendMMS.htm
O8 - Extra context menu item: 类似网页 - res://c:\program files\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: 缓存的网页快照 - res://c:\program files\google\GoogleToolbar2.dll/cmcache.html
O8 - Extra context menu item: 翻译英文字词(&T) - res://c:\program files\google\GoogleToolbar2.dll/cmwordtrans.html
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Windows Messenger (HKLM)
O16 - DPF: {3D8F74EE-8692-4F8F-B8D2-7522E732519E} (WebActivater Control) - http://game.qq.com/QQGame2.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab