我的浏览器被http://tm286.com劫持
这是我用hijackthis的扫描结果
Logfile of HijackThis v1.99.1
Scan saved at 14:25:20, on 2005-7-18
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\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\SOUNDMAN.EXE
D:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\nvsvc32.exe
D:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
C:\WINDOWS\system32\conime.exe
D:\PROGRAM FILES\RISING\RAV\Ravmond.exe
D:\PROGRAM FILES\RISING\RAV\RavStub.exe
d:\program files\rising\rav\RAVMON.EXE
D:\Program Files\DuDu\DddClient\dudupros.exe
C:\Program Files\Internet Explorer\iexplore.exe
F:\软件\新建文件夹 (2)\248783200522382732\HijackThis.exe

R3 - URLSearchHook: 上网助手 - {BB936323-19FA-4521-BA29-ECA6A121BC78} - C:\PROGRA~1\3721\Assist\asbar.dll
O2 - BHO: ThunderIEHelper Class - {0005A87D-D626-4B3A-84F9-1D9571695F55} - C:\WINDOWS\system32\xunleibho_v5.dll
O2 - BHO: (no name) - {015C8121-9EE2-469A-9DF7-B57C00EDBC36} - D:\PROGRA~1\Baizhao\PPPIEH~1.DLL
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - D:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Anti Fish - {38928D50-8A48-44C2-945F-D2F23F771410} - C:\PROGRA~1\3721\Assist\Angling.dll
O2 - BHO: DDDMon Class - {6BDE1669-B490-48E3-B668-456314F2D6C3} - D:\Program Files\DuDu\DddClient\dddiemon.dll
O2 - BHO: EyeOnIE Class - {6E28339B-7A2A-47B6-AEB2-46BA53782379} - D:\PROGRA~1\PCDOWN~1\BhoPlugin.dll (file missing)
O2 - BHO: IeCatch2 Class - {A5366673-E8CA-11D3-9CD9-0090271D075B} - C:\PROGRA~1\FLASHGET\jccatch.dll
O2 - BHO: 上网助手 - {BB936323-19FA-4521-BA29-ECA6A121BC78} - C:\PROGRA~1\3721\Assist\asbar.dll
O2 - BHO: IE - {D157330A-9EF3-49F8-9A67-4141AC41ADD4} - C:\WINDOWS\downlo~1\CnsHook.dll
O2 - BHO: IEHlprObj Class - {EE7C3CF0-4B15-11D1-ABED-709549C10000} - C:\PROGRA~1\INTERN~1\HMAPI.dll
O3 - Toolbar: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - C:\PROGRA~1\FLASHGET\fgiebar.dll
O3 - Toolbar: 上网助手 - {BB936323-19FA-4521-BA29-ECA6A121BC78} - C:\PROGRA~1\3721\Assist\asbar.dll
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [RavTimer] D:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
O4 - HKLM\..\Run: [RavMon] D:\PROGRA~1\RISING\RAV\RAVMON.EXE -SYSTEM
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe"  -osboot
O4 - HKLM\..\Run: [helper.dll] C:\WINDOWS\system32\rundll32.exe C:\PROGRA~1\3721\helper.dll,Rundll32
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O8 - Extra context menu item: &使用DuDu 加速器下载 - res://D:\Program Files\DuDu\DddClient\dddmext.dll/202
O8 - Extra context menu item: &使用迅雷下载 - D:\Program Files\Thunder Network\Thunder\geturl.htm
O8 - Extra context menu item: &使用迅雷下载全部链接 - D:\Program Files\Thunder Network\Thunder\getAllurl.htm
O8 - Extra context menu item: 使用Kugoo下载 - D:\PROGRA~1\KUGOO2\KugooDownX.htm
O8 - Extra context menu item: 使用网际快车下载 - C:\PROGRA~1\FLASHGET\jc_link.htm
O8 - Extra context menu item: 使用网际快车下载全部链接 - C:\PROGRA~1\FLASHGET\jc_all.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: 豪杰超级解霸V8实时播放 - d:\Herosoft\HeroV8\MPURLGET.HTM
O9 - Extra button: 手机短信 - {00000000-0000-0001-0001-596BAEDD1289} - http://sms.3721.com/ie/index.htm (file missing)
O9 - Extra button: 豪杰超级解霸V8 - {367E0A21-8601-4986-9C9A-153BF5ACA118} - d:\Herosoft\HeroV8\STHSDVD.EXE
O9 - Extra 'Tools' menuitem: 豪杰超级解霸V8 - {367E0A21-8601-4986-9C9A-153BF5ACA118} - d:\Herosoft\HeroV8\STHSDVD.EXE
O9 - Extra button: 下载管理 - {3DB9F45E-AA74-4373-A466-C18A9F1C500D} - D:\Program Files\DuDu\DddClient\DuDuAcc.exe
O9 - Extra 'Tools' menuitem: 下载管理 - {3DB9F45E-AA74-4373-A466-C18A9F1C500D} - D:\Program Files\DuDu\DddClient\DuDuAcc.exe
O9 - Extra button: Yahoo 1G电邮 - {507F9113-CD77-4866-BA92-0E86DA3D0B97} - http://cn.mail.yahoo.com/promo/rd1 (file missing)
O9 - Extra button: 寻宝乐趣多 - {59BC54A2-56B3-44a0-93E5-432D58746E26} - http://hot.3721.com/rd/shop_btn.htm (file missing)
O9 - Extra button: 上网助手 - {5D73EE86-05F1-49ed-B850-E423120EC338} - http://assistant.3721.com/index.htm?fb=Cns (file missing)
O9 - Extra button: 番茄花园 - {6096E38F-5AC1-4391-8EC4-75DFA92FB32F} - http://tomatolei.com (file missing)
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: FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - C:\PROGRA~1\FLASHGET\flashget.exe
O9 - Extra 'Tools' menuitem: &FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - C:\PROGRA~1\FLASHGET\flashget.exe
O9 - Extra button: 情景聊天 - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - http://cn.rd.yahoo.com/home/messenger/bjk/clientbtn/?http://cn.messenger.yahoo.com/ (file missing)
O9 - Extra button: (no name) - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://assistant.3721.com/security1.htm?fb=Cns (file missing)
O9 - Extra 'Tools' menuitem: 修复浏览器 - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://assistant.3721.com/security1.htm?fb=Cns (file missing)
O9 - Extra button: (no name) - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://assistant.3721.com/clean1.htm?fb=Cns (file missing)
O9 - Extra 'Tools' menuitem: 清理上网记录 - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://assistant.3721.com/clean1.htm?fb=Cns (file missing)
O11 - Options group: [!CNS]  上网助手-地址栏搜索
O16 - DPF: {5DD731E6-D4F0-11D3-BE3F-00105A6FDA50} (V3ProX Control) - http://origin-www.ahn.com.cn/aspservice/plugin/myv3.cab
O16 - DPF: {73E4740C-08EB-4133-896B-8D0A7C9EE3CD} (AxInputControl Class) - https://mybank.icbc.com.cn/icbc/perbank/AxSafeControls.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{3C6C0A52-153E-4CBB-96B5-7495F2E22079}: NameServer = 202.103.224.68 202.103.225.68
O18 - Protocol: koboo - {7DEE9D05-FA0A-4416-A6F3-6537D0EAB6A6} - C:\WINDOWS\system32\mbprot.dll
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Rising Process Communication Center (RsCCenter) - rising - D:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
O23 - Service: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - D:\PROGRAM FILES\RISING\RAV\Ravmond.exe

建议修复（如果楼主认为安全可以不选）
O2 - BHO: IEHlprObj Class - {EE7C3CF0-4B15-11D1-ABED-709549C10000} - C:\PROGRA~1\INTERN~1\HMAPI.dll
O18 - Protocol: koboo - {7DEE9D05-FA0A-4416-A6F3-6537D0EAB6A6} - C:\WINDOWS\system32\mbprot.dll
重起进安全模式

我的电脑--工具--文件夹选项--查看--显示所有文件（如图）
查找并删除
C:\PROGRA~1\INTERN~1\HMAPI.dll
C:\WINDOWS\system32\mbprot.dll
清空IE临时文件夹

【回复“4aaaa”的帖子】
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: IEHlprObj Class - {EE7C3CF0-4B15-11D1-ABED-709549C10000} - C:\PROGRA~1\INTERN~1\HMAPI.dll

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:\PROGRA~1\INTERN~1\HMAPI.dll

建议卸载DUDU加速器

还建议卸载3721