我用hijackthis搞个log上来,请大侠帮助分析一下.
Logfile of HijackThis v1.99.1
Scan saved at 22:53:12, on 2005-7-8
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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:\PROGRAM FILES\RISING\RAV\Ravmond.exe
C:\PROGRAM FILES\RISING\RAV\RavStub.exe
c:\program files\rising\rfw\rfwsrv.exe
C:\WINDOWS\System32\brsvc01a.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\System32\brss01a.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\WINDOWS\System32\hkcmd.exe
C:\WINDOWS\System32\Rundll32.exe
C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
C:\PROGRA~1\RISING\RAV\RAVMON.EXE
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\InterVideo\Common\Bin\WinCinemaMgr.exe
c:\program files\rising\rfw\RfwMain.exe
C:\WINDOWS\System32\inetsrv\inetinfo.exe
C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
C:\WINDOWS\System32\dllhost.exe
C:\WINDOWS\System32\inetsrv\DavCData.exe
C:\WINDOWS\System32\wuauclt.exe
C:\Program Files\Internet Explorer\iexplore.exe
D:\155847200541134207\HijackThis.exe
C:\WINDOWS\System32\NOTEPAD.EXE

O2 - BHO: Wbho Class - {40E3A34A-3282-41F8-AD2C-051BAB96AD4A} - C:\WINDOWS\System32\Usign.dll
O2 - BHO: 百度超级搜霸 - {B580CF65-E151-49C3-B73F-70B13FCA8E86} - C:\Program Files\baidu\bar\BaiduBar.dll
O2 - BHO: BDHlprObj Class - {CA92B524-BC8A-4610-BD2C-6BD3E28155D0} - C:\WINDOWS\DOWNLO~1\BDHelper.dll (file missing)
O2 - BHO: AlxTB BHO - {F1FABE79-25FC-46de-8C5A-2C6DB9D64333} - C:\WINDOWS\System32\AlxTB1.dll (file missing)
O3 - Toolbar: 电台(&R) - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: 百度超级搜霸 - {B580CF65-E151-49C3-B73F-70B13FCA8E86} - C:\Program Files\baidu\bar\BaiduBar.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: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [IMSCMig] C:\PROGRA~1\COMMON~1\MICROS~1\IME\IMSC40A\IMSCMIG.EXE /Preload
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [ExFilter] Rundll32.exe C:\WINDOWS\System32\hookdll.dll,ExecFilter solo
O4 - HKLM\..\Run: [EPSON Stylus C43 Series] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_S10IC2.EXE /P23 "EPSON Stylus C43 Series" /O5 "LPT1:" /M "Stylus C43"
O4 - HKLM\..\Run: [RavTimer] C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
O4 - HKLM\..\Run: [RavMon] C:\PROGRA~1\RISING\RAV\RAVMON.EXE -SYSTEM
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O4 - Global Startup: InterVideo WinCinema Manager.lnk = C:\Program Files\InterVideo\Common\Bin\WinCinemaMgr.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O6 - HKLM\Software\Policies\Microsoft\Internet Explorer\Restrictions present
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: Mail to a Friend... - http://client.alexa.com/holiday/script/actions/mailto.htm
O8 - Extra context menu item: Save豪杰超级解霸V8实时播放 - C:\Herosoft\HeroV8\MPURLGET.HTM
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: 百度-搜索MP3 - res://C:\Program Files\baidu\bar\BaiduBar.dll/BAIDUMP3.HTM
O8 - Extra context menu item: 百度-搜索图片 - res://C:\Program Files\baidu\bar\BaiduBar.dll/BAIDUIMG.HTM
O8 - Extra context menu item: 百度-搜索新闻 - res://C:\Program Files\baidu\bar\BaiduBar.dll/BAIDUNEWS.HTM
O8 - Extra context menu item: 百度-搜索歌词 - res://C:\Program Files\baidu\bar\BaiduBar.dll/BAIDULYRIC.HTM
O8 - Extra context menu item: 百度-搜索网页 - res://C:\Program Files\baidu\bar\BaiduBar.dll/BAIDUSEARCH.HTM
O8 - Extra context menu item: 百度-搜索贴吧 - res://C:\Program Files\baidu\bar\BaiduBar.dll/BAIDUPOST.HTM
O8 - Extra context menu item: 百度-词典搜索 - res://C:\Program Files\baidu\bar\BaiduBar.dll/BAIDU_DIC.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: 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: 信息检索 - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra button: QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - C:\Program Files\Tencent\QQ\QQ.EXE
O9 - Extra 'Tools' menuitem: 腾讯QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - C:\Program Files\Tencent\QQ\QQ.EXE
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O14 - IERESET.INF: START_PAGE_URL=http://zw2025.home4u.china.com
O16 - DPF: {3D8F74EE-8692-4F8F-B8D2-7522E732519E} (WebActivater Control) - http://game.qq.com/QQGame2.cab
O18 - Protocol: about - {3050F406-98B5-11CF-BB82-00AA00BDCE0B} - C:\WINDOWS\System32\mshtml.dll
O18 - Protocol: cdl - {3DD53D40-7B8B-11D0-B013-00AA0059CE02} - C:\WINDOWS\system32\urlmon.dll
O18 - Protocol: dvd - {12D51199-0DB5-46FE-A120-47A3D7D937CC} - C:\WINDOWS\System32\msvidctl.dll
O18 - Protocol: file - {79EAC9E7-BAF9-11CE-8C82-00AA004BA90B} - C:\WINDOWS\system32\urlmon.dll
O18 - Protocol: ftp - {79EAC9E3-BAF9-11CE-8C82-00AA004BA90B} - C:\WINDOWS\system32\urlmon.dll
O18 - Protocol: gopher - {79EAC9E4-BAF9-11CE-8C82-00AA004BA90B} - C:\WINDOWS\system32\urlmon.dll
O18 - Protocol: http - {79EAC9E2-BAF9-11CE-8C82-00AA004BA90B} - C:\WINDOWS\system32\urlmon.dll
O18 - Protocol: https - {79EAC9E5-BAF9-11CE-8C82-00AA004BA90B} - C:\WINDOWS\system32\urlmon.dll
O18 - Protocol: ipp - (no CLSID) - (no file)
O18 - Protocol: its - {9D148291-B9C8-11D0-A4CC-0000F80149F6} - C:\WINDOWS\System32\itss.dll
O18 - Protocol: javascript - {3050F3B2-98B5-11CF-BB82-00AA00BDCE0B} - C:\WINDOWS\System32\mshtml.dll
O18 - Protocol: local - {79EAC9E7-BAF9-11CE-8C82-00AA004BA90B} - C:\WINDOWS\system32\urlmon.dll
O18 - Protocol: mailto - {3050F3DA-98B5-11CF-BB82-00AA00BDCE0B} - C:\WINDOWS\System32\mshtml.dll
O18 - Protocol: mhtml - {05300401-BCBC-11D0-85E3-00C04FD85AB4} - C:\WINDOWS\System32\inetcomm.dll
O18 - Protocol: mk - {79EAC9E6-BAF9-11CE-8C82-00AA004BA90B} - C:\WINDOWS\system32\urlmon.dll
O18 - Protocol: ms-its - {9D148291-B9C8-11D0-A4CC-0000F80149F6} - C:\WINDOWS\System32\itss.dll
O18 - Protocol: msdaipp - (no CLSID) - (no file)
O18 - Protocol: mso-offdap - {3D9F03FA-7A94-11D3-BE81-0050048385D1} - C:\PROGRA~1\COMMON~1\MICROS~1\WEBCOM~1\10\OWC10.DLL
O18 - Protocol: mso-offdap11 - {32505114-5902-49B2-880A-1F7738E5A384} - C:\PROGRA~1\COMMON~1\MICROS~1\WEBCOM~1\11\OWC11.DLL
O18 - Protocol: res - {3050F3BC-98B5-11CF-BB82-00AA00BDCE0B} - C:\WINDOWS\System32\mshtml.dll
O18 - Protocol: sysimage - {76E67A63-06E9-11D2-A840-006008059382} - C:\WINDOWS\System32\mshtml.dll
O18 - Protocol: tv - {CBD30858-AF45-11D2-B6D6-00C04FBBDE6E} - C:\WINDOWS\System32\msvidctl.dll
O18 - Protocol: vbscript - {3050F3B2-98B5-11CF-BB82-00AA00BDCE0B} - C:\WINDOWS\System32\mshtml.dll
O18 - Protocol: vnd.ms.radio - {3DA2AA3B-3D96-11D2-9BD2-204C4F4F5020} - C:\WINDOWS\System32\msdxm.ocx
O18 - Protocol: wia - {13F3EA8B-91D7-4F0A-AD76-D2853AC8BECE} - C:\WINDOWS\System32\wiascr.dll
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxsrvc.dll
O21 - SSODL: systemp - {E82E4C9B-2BB5-413A-833F-6FF89D566E6F} - systemp.dll (file missing)
O23 - Service: BrSplService (Brother XP spl Service) - brother Industries Ltd - C:\WINDOWS\System32\brsvc01a.exe
O23 - Service: EPSON Printer Status Agent2 (EPSONStatusAgent2) - Unknown owner - C:\Program Files\Common Files\EPSON\EBAPI\SAgent2.exe (file missing)
O23 - Service: Macromedia Licensing Service - Unknown owner - C:\Program Files\Common Files\Macromedia Shared\Service\Macromedia Licensing.exe
O23 - Service: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Corporation Limited - c:\program files\rising\rfw\rfwsrv.exe
O23 - Service: Rising Process Communication Center (RsCCenter) - rising - C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
O23 - Service: RsRavMon Service (RsRav

重新启动到安全模式（进入安全模式的方法:重新启动电脑, 开机自动检测完后, 按[F8]键(可以一直按到启动菜单出来为止), 选择安全模式(Safe Mode)进入Windows。）

请关闭所有IE界面，重新使用HijackThis扫描一次，选中下面建议修复的项目，让HijackThis修复，修复前请允许HijackThis保留备份。（如果楼主知道是安全的可以不必勾选）
O2 - BHO: Wbho Class - {40E3A34A-3282-41F8-AD2C-051BAB96AD4A} - C:\WINDOWS\System32\Usign.dll
O6 - HKLM\Software\Policies\Microsoft\Internet Explorer\Restrictions present

然后打开我的电脑。。再点工具。。打开文件夹选项。。。查看。。。把隐藏受保护的系统文件（推荐）和隐藏已知文件类型的扩展名的勾去掉。再显示所有文件。 用WINDOWS的查找功能进行查找并删除：
C:\WINDOWS\System32\Usign.dll

重新启动电脑, 开机检测完后, 按[F8]键(可以一直按到启动菜单出来为止), 选择安全模式进入Windows

运行Hijackthis，扫描结束后在下列选项前打上勾，然后选修复“Fix Checked”：

O2 - BHO: Wbho Class - {40E3A34A-3282-41F8-AD2C-051BAB96AD4A} - C:\WINDOWS\System32\Usign.dll
O2 - BHO: AlxTB BHO - {F1FABE79-25FC-46de-8C5A-2C6DB9D64333} - C:\WINDOWS\System32\AlxTB1.dll (file missing)
O6 - HKLM\Software\Policies\Microsoft\Internet Explorer\Restrictions present
O21 - SSODL: systemp - {E82E4C9B-2BB5-413A-833F-6FF89D566E6F} - systemp.dll (file missing)

显示隐藏文件

双击我的电脑--工具---文件夹选项--查看选项卡--单击选取"显示隐藏文件或文件夹"--清除"隐藏受保护的操作系统文件（推荐）"复选框。在提示您确定更改时，单击“是”--单击“确定”。

然后找到如下文件并删除（如果有的话）。
C:\WINDOWS\System32\Usign.dll
C:\WINDOWS\System32\AlxTB1.dll
systemp.dll（请用开始菜单中的搜索功能查找）

楼主发的LOG不完整。。。

第1楼飞跃迷离朋友已经指出了最可疑的项目...

以下修复工作中有关操作方法可参考：
【推荐】反浏览器劫持的一些常用操作
http://forum.ikaka.com/topic.asp?board=67&artid=6490491

重新启动到安全模式

如果使用了系统还原功能, 请先关闭此功能。

开始--》设置--》控制面板--》添加删除程序--》卸载百度超级搜霸

设置系统显示所有文件和文件夹

寻找如下文件:
C:\WINDOWS\System32\Usign.dll
systemp.dll(用开始菜单中的搜索功能查找)

把找到的文件用压缩软件(如winrar, winzip)打包备份，待全部修复工作完成后，在线上报病毒样本（http://up.rising.com.cn/）请注明此贴的网址
或
把压缩包作为email附件发到endurer@163.com,请在email中注明此贴的网址

请关闭所有浏览器窗口和文件夹窗口，重新使用HijackThis扫描,在下列建议修复的项目前打上勾，然后点[修复](Fix)（如果你清楚某项是安全的，可以不处理）：

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

O2 - BHO: 百度超级搜霸 - {B580CF65-E151-49C3-B73F-70B13FCA8E86} - C:\Program Files\baidu\bar\BaiduBar.dll

O2 - BHO: BDHlprObj Class - {CA92B524-BC8A-4610-BD2C-6BD3E28155D0} - C:\WINDOWS\DOWNLO~1\BDHelper.dll (file missing)

O2 - BHO: AlxTB BHO - {F1FABE79-25FC-46de-8C5A-2C6DB9D64333} - C:\WINDOWS\System32\AlxTB1.dll (file missing)

O3 - Toolbar: 百度超级搜霸 - {B580CF65-E151-49C3-B73F-70B13FCA8E86} - C:\Program Files\baidu\bar\BaiduBar.dll

O4 - HKLM\..\Run: [ExFilter] Rundll32.exe C:\WINDOWS\System32\hookdll.dll,ExecFilter solo

O6 - HKLM\Software\Policies\Microsoft\Internet Explorer\Restrictions present

O14 - IERESET.INF: START_PAGE_URL=http://zw2025.home4u.china.com

O21 - SSODL: systemp - {E82E4C9B-2BB5-413A-833F-6FF89D566E6F} - systemp.dll (file missing)

删除文件:

C:\WINDOWS\System32\Usign.dll
systemp.dll

谢谢各位大侠帮助.笑梧桐谢谢各位大侠.

方法：
开始 , 运行 , REGEDIT , HKEY-CURRENT-USER ,SOFTWARE , MICROSOFT , INTERNET EXPLORER , MAIN , START PAGE
只要把START PAGE这个键值删掉就可以了。我的系统是WIN98的，IE是5.0的。请大家试试吧？有什么不对请大家指出？？

问题解决了.我的浏览器自由了.谢谢各位大侠帮助.