默认首页被自动改为http://www.17777.com.开始菜单－>运行－>regedit->确定，打开注册表编辑工具，按如下顺序依次打开：HKEY_LOCAL_USER\Software\Microsoft\Internet Explorer\Main分支，找到StartPage键值名,改为空白页.重起后又被改回来了.怎么办?

进入安全模式,用升级到最新的瑞星杀毒,没毒.下载瑞星的注册表修复软件,改了以后,还是被改回来.真不知怎么办?

开始运行notepad %SystemRoot%\system32\drivers\etc\hosts

点[确定]按钮。# Copyright (c) 1993-1999 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97    rhino.acme.com          # source server
#      38.25.63.10    x.acme.com              # x client host

127.0.0.1      localhost

HijackThis_zww汉化版扫描日志 V1.99.1
保存于      7:55:09, 日期 2005-7-22
操作系统：  Windows XP SP1 (WinNT 5.01.2600)
浏览器：    Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\svchost.exe
C:\WINDOWS\System32\svchost.exe
c:\program files\rising\rfw\rfwsrv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\System32\VTTimer.exe
C:\WINDOWS\System32\VTtrayp.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
C:\Program Files\Rising\Rfw\rfwmain.exe
C:\PROGRA~1\RISING\RAV\RAVMON.EXE
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\Tencent\QQ\QQ.exe
C:\Program Files\Tencent\QQ\TIMPlatform.exe
C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
C:\PROGRAM FILES\RISING\RAV\Ravmond.exe
C:\PROGRAM FILES\RISING\RAV\RavStub.exe
C:\Program Files\Tencent\QQ\QQexternal.exe
C:\Program Files\HijackThis1991汉化版\HijackThis1991zww.exe

O2 - BHO: Wbho Class - {40E3A34A-3282-41F8-AD2C-051BAB96AD4A} - C:\WINDOWS\System32\Usign.dll
O2 - BHO: QQIEHelper - {54EBD53A-9BC1-480B-966A-843A333CA162} - C:\Program Files\Tencent\QQ\QQIEHelper.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: (no name) - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - (no file)
O4 - 启动项HKLM\\Run: [VTTimer] VTTimer.exe
O4 - 启动项HKLM\\Run: [VTTrayp] VTtrayp.exe
O4 - 启动项HKLM\\Run: [SoundMan] SOUNDMAN.EXE
O4 - 启动项HKLM\\Run: [RavTimer] C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
O4 - 启动项HKLM\\Run: [RfwMain] "C:\Program Files\Rising\Rfw\rfwmain.exe" -Startup
O4 - 启动项HKLM\\Run: [RavMon] C:\PROGRA~1\RISING\RAV\RAVMON.EXE -SYSTEM
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O4 - Startup: 腾讯QQ.lnk = C:\Program Files\Tencent\QQ\QQ.exe
O8 - IE右键菜单中的新增项目: 添加到QQ自定义面板 - C:\Program Files\Tencent\QQ\AddPanel.htm
O8 - IE右键菜单中的新增项目: 添加到QQ表情 - C:\Program Files\Tencent\QQ\AddEmotion.htm
O8 - IE右键菜单中的新增项目: 用QQ彩信发送该图片 - C:\Program Files\Tencent\QQ\SendMMS.htm
O8 - IE右键菜单中的新增项目: 解霸实时播放 - C:\HEROSOFT\Hero3000\MPURLGET.HTM
O9 - 浏览器额外的按钮: 浩方对战平台 - {0A155D3C-68E2-4215-A47A-E800A446447A} - C:\Program Files\浩方对战平台\GameClient.exe
O9 - 浏览器额外的按钮: 解霸 - {367E0A21-8601-4986-9C9A-153BF5ACA118} - C:\HEROSOFT\Hero3000\MPLAYER.EXE
O9 - 浏览器额外的“工具”菜单项: 超级解霸 - {367E0A21-8601-4986-9C9A-153BF5ACA118} - C:\HEROSOFT\Hero3000\MPLAYER.EXE
O9 - 浏览器额外的按钮: 词霸 - {9A687CA6-D585-4947-9ED9-BE96071F5CD9} - C:\POWERW~1\XDictExB.dll
O9 - 浏览器额外的按钮: 金山词霸 - {C8CE29C5-7589-11D3-B81B-0080C8DC5DC8} - C:\POWERW~1\IEPlugin.dll
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} - C:\Program Files\Tencent\QQ\QQ.EXE
O9 - 浏览器额外的“工具”菜单项: 腾讯QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - C:\Program Files\Tencent\QQ\QQ.EXE
O9 - 浏览器额外的按钮: (no name) - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\Program Files\Tencent\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} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O9 - 浏览器额外的按钮: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\WINDOWS\System32\shdocvw.dll
O9 - 浏览器额外的“工具”菜单项: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\WINDOWS\System32\shdocvw.dll
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1121387264421
O16 - DPF: {73E4740C-08EB-4133-896B-8D0A7C9EE3CD} (AxInputControl Class) - https://mybank.icbc.com.cn/icbc/perbank/AxSafeControls.cab
O16 - DPF: {C14D003A-DA41-4FEE-8204-62A94EAA29D1} (GLWebAvt Control) - http://bbs.ourgame.com/image/GLWebAvt.cab
O16 - DPF: {D0A29C6C-AA71-4423-8C4A-5998B774C448} (IEDown Class) - http://download.ourgame.com/IEDown4.cab
O16 - DPF: {DA984A6D-508E-11D6-AA49-0050FF3C628D} (Ravonline) - http://download.rising.com.cn/QQ/QQkill/rsonline.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{DC596B4C-B044-4A65-824F-FFDC0DBA8782}: NameServer = 61.177.7.1 221.228.255.1
O18 - 列举现有的协议: dic - {C21F5C32-F57A-4A0D-8E0A-B672691C52D0} - C:\POWERW~1\XDictExB.dll
O23 - NT 服务: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Corporation Limited - c:\program files\rising\rfw\rfwsrv.exe
O23 - NT 服务: Rising Process Communication Center (RsCCenter) - rising - 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

请用最新版Hijackthis1.99.1扫描一个log贴上来。

hijackThis下载地址见置顶贴
[必读]本版说明及常用小软件下载
http://forum.ikaka.com/topic.asp?board=67&artid=5188931

运行HijackThis，先点[扫描系统并保存日志]或[Do a system scan and save a logfile]按钮，扫描完成后，LOG将会在自动弹出的记事本中显示，再从记事本里复制/粘贴到贴子里。如果LOG比较长，一贴发不完，你可以分成几个部分发在回贴里。

HijackThis_zww汉化版扫描日志 V1.99.1
保存于      9:00:48, 日期 2005-7-22
操作系统：  Windows XP SP1 (WinNT 5.01.2600)
浏览器：    Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\svchost.exe
C:\WINDOWS\System32\svchost.exe
c:\program files\rising\rfw\rfwsrv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\VTTimer.exe
C:\WINDOWS\System32\VTtrayp.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
C:\Program Files\Rising\Rfw\rfwmain.exe
C:\PROGRA~1\RISING\RAV\RAVMON.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
C:\PROGRAM FILES\RISING\RAV\Ravmond.exe
C:\PROGRAM FILES\RISING\RAV\RavStub.exe
C:\Program Files\Tencent\QQ\QQ.exe
C:\Program Files\Tencent\QQ\TIMPlatform.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\HijackThis1991汉化版\HijackThis1991zww.exe

O2 - BHO: Wbho Class - {40E3A34A-3282-41F8-AD2C-051BAB96AD4A} - C:\WINDOWS\System32\Usign.dll
O2 - BHO: QQIEHelper - {54EBD53A-9BC1-480B-966A-843A333CA162} - C:\Program Files\Tencent\QQ\QQIEHelper.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: (no name) - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - (no file)
O4 - 启动项HKLM\\Run: [VTTimer] VTTimer.exe
O4 - 启动项HKLM\\Run: [VTTrayp] VTtrayp.exe
O4 - 启动项HKLM\\Run: [SoundMan] SOUNDMAN.EXE
O4 - 启动项HKLM\\Run: [RavTimer] C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
O4 - 启动项HKLM\\Run: [RfwMain] "C:\Program Files\Rising\Rfw\rfwmain.exe" -Startup
O4 - 启动项HKLM\\Run: [RavMon] C:\PROGRA~1\RISING\RAV\RAVMON.EXE -SYSTEM
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O4 - Startup: 腾讯QQ.lnk = C:\Program Files\Tencent\QQ\QQ.exe
O8 - IE右键菜单中的新增项目: 添加到QQ自定义面板 - C:\Program Files\Tencent\QQ\AddPanel.htm
O8 - IE右键菜单中的新增项目: 添加到QQ表情 - C:\Program Files\Tencent\QQ\AddEmotion.htm
O8 - IE右键菜单中的新增项目: 用QQ彩信发送该图片 - C:\Program Files\Tencent\QQ\SendMMS.htm
O8 - IE右键菜单中的新增项目: 解霸实时播放 - C:\HEROSOFT\Hero3000\MPURLGET.HTM
O9 - 浏览器额外的按钮: 浩方对战平台 - {0A155D3C-68E2-4215-A47A-E800A446447A} - C:\Program Files\浩方对战平台\GameClient.exe
O9 - 浏览器额外的按钮: 解霸 - {367E0A21-8601-4986-9C9A-153BF5ACA118} - C:\HEROSOFT\Hero3000\MPLAYER.EXE
O9 - 浏览器额外的“工具”菜单项: 超级解霸 - {367E0A21-8601-4986-9C9A-153BF5ACA118} - C:\HEROSOFT\Hero3000\MPLAYER.EXE
O9 - 浏览器额外的按钮: 词霸 - {9A687CA6-D585-4947-9ED9-BE96071F5CD9} - C:\POWERW~1\XDictExB.dll
O9 - 浏览器额外的按钮: 金山词霸 - {C8CE29C5-7589-11D3-B81B-0080C8DC5DC8} - C:\POWERW~1\IEPlugin.dll
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} - C:\Program Files\Tencent\QQ\QQ.EXE
O9 - 浏览器额外的“工具”菜单项: 腾讯QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - C:\Program Files\Tencent\QQ\QQ.EXE
O9 - 浏览器额外的按钮: (no name) - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\Program Files\Tencent\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} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O9 - 浏览器额外的按钮: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\WINDOWS\System32\shdocvw.dll
O9 - 浏览器额外的“工具”菜单项: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\WINDOWS\System32\shdocvw.dll
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1121387264421
O16 - DPF: {73E4740C-08EB-4133-896B-8D0A7C9EE3CD} (AxInputControl Class) - https://mybank.icbc.com.cn/icbc/perbank/AxSafeControls.cab
O16 - DPF: {C14D003A-DA41-4FEE-8204-62A94EAA29D1} (GLWebAvt Control) - http://bbs.ourgame.com/image/GLWebAvt.cab
O16 - DPF: {D0A29C6C-AA71-4423-8C4A-5998B774C448} (IEDown Class) - http://download.ourgame.com/IEDown4.cab
O16 - DPF: {DA984A6D-508E-11D6-AA49-0050FF3C628D} (Ravonline) - http://download.rising.com.cn/QQ/QQkill/rsonline.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{DC596B4C-B044-4A65-824F-FFDC0DBA8782}: NameServer = 61.177.7.1 221.228.255.1
O18 - 列举现有的协议: dic - {C21F5C32-F57A-4A0D-8E0A-B672691C52D0} - C:\POWERW~1\XDictExB.dll
O23 - NT 服务: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Corporation Limited - c:\program files\rising\rfw\rfwsrv.exe
O23 - NT 服务: Rising Process Communication Center (RsCCenter) - rising - 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

修复:
O2 - BHO: Wbho Class - {40E3A34A-3282-41F8-AD2C-051BAB96AD4A} - C:\WINDOWS\System32\Usign.dll

O3 - IE工具栏增项: (no name) - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - (no file)

删除文件:

C:\WINDOWS\System32\Usign.dll

----------------------------------

修复完问题还存在请再扫个日志上来.谢谢.

解决了3Q