双击我的电脑或者我的文档或者网上邻居或者回收站时，瑞星提示是否同意修改注册表（进程为：C:\WINDOWS\explorer.exe  修改<Start Page>值为<http://diyitian.com>） 
我双击浏览器时，瑞星提示是否同意修改注册表（进程为：C:\Program Files\Internet Explorer\iexplore.exe  修改<Start Page>值为<http://diyitian.com>） 
如果不同意修改，提示explorer.exe出错关闭，桌面和任务栏消失后又出现。我的电脑、我的文档、网上邻居、回收站都不能打开；浏览器则出现错误而关闭。 
我怀疑是中了病毒，就用最新版的瑞星杀毒查杀，没有发现病毒。 
我从网上搜索解决办法，没有能解决的。 
没有办法只好同意对注册表的修改了。同意后只是主页被改，其它好像没有什么影响。 
哪位高手知道是怎么回事？急急急！！！ 

应该是浏览器劫持。http://forum.ikaka.com/topic.asp?board=28&artid=6979213第1楼下载HijackThis扫个日志发上来。

【回复“虎啸山庄”的帖子】
中了木马程序

【回复“虎啸山庄”的帖子】
帮你贴出来了：
Logfile of HijackThis v1.99.1
Scan saved at 18:02:43, on 2006-4-17
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
D:\Rising\Rav\CCenter.exe
C:\WINDOWS\System32\svchost.exe
D:\Rising\Rav\Ravmond.exe
d:\rising\rfw\rfwsrv.exe
C:\WINDOWS\Explorer.EXE
D:\Rising\Rav\RavStub.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\WINDOWS\SOUNDMAN.EXE
D:\Rising\Rav\RavTask.exe
D:\Rising\Rav\Ravmon.exe
d:\rising\rfw\RfwMain.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Microtek\ScanWizard 5\ScannerFinder.exe
C:\Program Files\UFDisk\UFDisk Format Tool\iFormat.exe
C:\Program Files\Tencent\QQ\QQ.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Tencent\QQ\TIMPlatform.exe
C:\Program Files\WinRAR\WinRAR.exe
C:\DOCUME~1\sd\LOCALS~1\Temp\Rar$EX00.602\HijackThis.exe

R3 - URLSearchHook: 上网助手 - {BB936323-19FA-4521-BA29-ECA6A121BC78} - C:\PROGRA~1\3721\Assist\asbar.dll (file missing)
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: CNNIC_IDN - {35980F6E-A137-4E50-953D-813BB8556899} - C:\PROGRA~1\CNNIC\Cdn\cdniehlp.dll (file missing)
O2 - BHO: QQBrowserHelperObject Class - {54EBD53A-9BC1-480B-966A-843A333CA162} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O2 - BHO: MMSAssist - {6671A431-5C3D-463d-A7CF-5587F9B7E191} - (no file)
O2 - BHO: 百度搜霸 - {B580CF65-E151-49C3-B73F-70B13FCA8E86} - C:\WINDOWS\DOWNLO~1\BaiDuBar.dll
O2 - BHO: AssistII - {BB936323-19FA-4521-BA29-ECA6A121BC78} - C:\PROGRA~1\3721\Assist\asbar.dll (file missing)
O2 - BHO: 珊瑚虫 工具栏 - {D74EC18E-3DDD-4174-B1B1-949FE3B8366D} - C:\Program Files\Infofo Bar\infofobar.dll
O2 - BHO: (no name) - {FCADDC14-BD46-408A-9842-CDBE1C6D37EB} - C:\WINDOWS\BrowserHelper.dll
O3 - Toolbar: (no name) - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - (no file)
O3 - Toolbar: 百度搜霸 - {B580CF65-E151-49C3-B73F-70B13FCA8E86} - C:\WINDOWS\DOWNLO~1\BaiDuBar.dll
O3 - Toolbar: 珊瑚虫 工具栏 - {D74EC18E-3DDD-4174-B1B1-949FE3B8366D} - C:\Program Files\Infofo Bar\infofobar.dll
O3 - Toolbar: 便民工具 - {803E354A-8D70-4C6B-8AB7-7FCEBFD36FA8} - C:\WINDOWS\MailIEBand.dll
O3 - Toolbar: 上网助手 - {BB936323-19FA-4521-BA29-ECA6A121BC78} - C:\PROGRA~1\3721\Assist\asbar.dll (file missing)
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: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe"  -osboot
O4 - HKLM\..\Run: [MSPY2002] C:\WINDOWS\system32\IME\PINTLGNT\ImScInst.exe /SYNC
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [RfwMain] "C:\Program Files\Rising\Rfw\rfwmain.exe" -Startup
O4 - HKLM\..\Run: [RavTask] "D:\Rising\Rav\RavTask.exe" -system
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [RavTimer] C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
O4 - HKLM\..\Run: [Internet Explorer] IExplorer.exe
O4 - HKLM\..\RunOnce: [RavStub] "D:\Rising\Rav\ravstub.exe" /RUNONCE
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Startup: 腾讯QQ珊瑚虫版.lnk = C:\Program Files\Tencent\QQ\CoralQQ.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Microtek 扫描仪探测器.lnk = C:\Program Files\Microtek\ScanWizard 5\ScannerFinder.exe
O4 - Global Startup: iFormat.lnk = C:\Program Files\UFDisk\UFDisk Format Tool\iFormat.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O8 - Extra context menu item:  >> 彩信发送 << - res://C:\PROGRA~1\MMSASS~1\Mmsass~1.dll/mms.htm
O8 - Extra context menu item: &Download by NetAnts - C:\PROGRA~1\NETANTS\NAGet.htm
O8 - Extra context menu item: Download &All by NetAnts - C:\PROGRA~1\NETANTS\NAGetAll.htm
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: 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: 百度Flash搜索 - res://C:\WINDOWS\DOWNLO~1\BaiDuBar.dll/FLASHSEARCH.HTM
O8 - Extra context menu item: 百度mp3搜索 - res://C:\WINDOWS\DOWNLO~1\BaiDuBar.dll/BAIDUMP3.HTM
O8 - Extra context menu item: 百度信息快递搜索 - res://C:\WINDOWS\DOWNLO~1\BaiDuBar.dll/BAIDUIE.HTM
O8 - Extra context menu item: 百度图片搜索 - res://C:\WINDOWS\DOWNLO~1\BaiDuBar.dll/BAIDUIMG.HTM
O8 - Extra context menu item: 百度搜索 - res://C:\WINDOWS\DOWNLO~1\BaiDuBar.dll/BAIDUSEARCH.HTM
O8 - Extra context menu item: 百度新闻搜索 - res://C:\WINDOWS\DOWNLO~1\BaiDuBar.dll/BAIDUNEWS.HTM
O8 - Extra context menu item: 豪杰超级解霸V8实时播放 - C:\Herosoft\HeroV8\MPURLGET.HTM
O9 - Extra button: 中文上网 - {35980F6E-A137-4E50-953D-813BB8556899} - C:\PROGRA~1\CNNIC\Cdn\cdniehlp.dll (file missing)
O9 - Extra 'Tools' menuitem: 中文上网 - {35980F6E-A137-4E50-953D-813BB8556899} - C:\PROGRA~1\CNNIC\Cdn\cdniehlp.dll (file missing)
O9 - Extra button: 豪杰超级解霸V8 - {367E0A21-8601-4986-9C9A-153BF5ACA118} - C:\Herosoft\HeroV8\STHSDVD.EXE
O9 - Extra 'Tools' menuitem: 豪杰超级解霸V8 - {367E0A21-8601-4986-9C9A-153BF5ACA118} - C:\Herosoft\HeroV8\STHSDVD.EXE
O9 - Extra button: NetAnts - {57E91B47-F40A-11D1-B792-444553540000} - C:\PROGRA~1\NETANTS\NetAnts.exe
O9 - Extra 'Tools' menuitem: &NetAnts - {57E91B47-F40A-11D1-B792-444553540000} - C:\PROGRA~1\NETANTS\NetAnts.exe
O9 - Extra button: (no name) - {6671A433-5C3D-463d-A7CF-5587F9B7E191} - C:\WINDOWS\system32\shdocvw.dll
O9 - Extra 'Tools' menuitem: MMSAssist工具条设置 - {6671A433-5C3D-463d-A7CF-5587F9B7E191} - C:\WINDOWS\system32\shdocvw.dll
O9 - Extra button: 珊瑚虫 工具栏 - {8507326C-B5C1-4559-BB91-0919E753836F} - C:\Program Files\Infofo Bar\infofobar.dll
O9 - Extra 'Tools' menuitem: 珊瑚虫 工具栏 - {8507326C-B5C1-4559-BB91-0919E753836F} - C:\Program Files\Infofo Bar\infofobar.dll
O9 - Extra button: FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - C:\WINDOWS\system32\shdocvw.dll
O9 - Extra 'Tools' menuitem: &FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - C:\WINDOWS\system32\shdocvw.dll
O9 - Extra button: (no name) - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O9 - Extra 'Tools' menuitem: QQ炫彩工具条设置 - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\Program Files\Tencent\QQ\QQIEHelper.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
O11 - Options group: [CDNCLIENT]  中文上网
O17 - HKLM\System\CCS\Services\Tcpip\..\{73162BD3-6882-4889-BF39-6BE019509144}: NameServer = 219.150.150.150,222.88.88.88
O23 - Service: Gray_Pigeon_Server (GrayPigeonServer) - Unknown owner - C:\WINDOWS\system32\G_Server.exe (file missing)
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Rising Proxy  Service (RfwProxySrv) - Beijing Rising Technology Co., Ltd. - d:\rising\rfw\rfwproxy.exe
O23 - Service: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Co., Ltd. - d:\rising\rfw\rfwsrv.exe
O23 - Service: Rising Process Communication Center (RsCCenter) - Beijing Rising Technology Co., Ltd. - D:\Rising\Rav\CCenter.exe
O23 - Service: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - D:\Rising\Rav\Ravmond.exe

建议处理方法：
O4 - HKLM\..\Run: [Internet Explorer] IExplorer.exe
这项应该就是木马，修复此项后重启在安全模式下在硬盘中搜索并删除该文件。注意真正的IE浏览器程序应为iexplore.exe。

另外，卸载C:\Program Files\Infofo Bar\

O23 - Service: Gray_Pigeon_Server (GrayPigeonServer) - Unknown owner - C:\WINDOWS\system32\G_Server.exe (file missing)
这是灰鸽子的注册表残余，在注册表删除HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\GrayPigeonServer项