打开IE或者开新窗口的时候不定期的跳出http://www.800vod.com/honglian/movie02.htm这个网页。我google了一下，很多人都说要反安装NaviHelper.dll和删除host.dat，可是为什么我找不到这两个文件呢？
而且在IE的工具-管理加载项里也没有NaviHelper。
谁能解释一下么？谢谢。
我用xp SP2。

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。

Logfile of HijackThis v1.99.1
Scan saved at 14:52:28, on 20/07/2005
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\ibmpmsvc.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\S24EvMon.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\NUS-VPN\cvpnd.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
C:\WINDOWS\System32\QCONSVC.EXE
C:\WINDOWS\System32\RegSrvc.exe
C:\Program Files\Common Files\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\WINDOWS\system32\TpKmpSVC.exe
C:\Program Files\ThinkPad\Utilities\TpKmapMn.exe
C:\Program Files\ThinkPad\Utilities\TpKmapMn.exe
C:\WINDOWS\System32\urtclsvc.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\conime.exe
C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\WINDOWS\system32\TpShocks.exe
C:\PROGRA~1\ThinkPad\PkgMgr\HOTKEY\TPHKMGR.exe
C:\WINDOWS\system32\rundll32.exe
C:\PROGRA~1\ThinkPad\UTILIT~1\EzEjMnAp.Exe
C:\Program Files\ThinkPad\PkgMgr\HOTKEY\TPONSCR.exe
C:\Program Files\ThinkPad\PkgMgr\HOTKEY_1\TpScrex.exe
C:\Program Files\IBM\Messages By IBM\ibmmessages.exe
C:\Program Files\ThinkPad\ConnectUtilities\QCTRAY.EXE
C:\Program Files\ThinkPad\ConnectUtilities\QCWLICON.EXE
C:\WINDOWS\system32\RunDll32.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\Program Files\D-Tools\daemon.exe
C:\WINDOWS\system32\dla\tfswctrl.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\Adobe\Acrobat 7.0\Distillr\Acrotray.exe
C:\WINDOWS\VM_STI.EXE
C:\WINDOWS\system32\msstart.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\ThinkPad\Utilities\TpKmapMn.exe
C:\Program Files\Digital Line Detect\DLG.exe
C:\Program Files\BitComet\BitComet.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\WINDOWS\System32\rsvp.exe
C:\Documents and Settings\u0401948\Desktop\HijackThis.exe
C:\Program Files\Messenger\msmsgs.exe

O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\system32\dla\tfswshx.dll
O2 - BHO: Router Layer - {5EB7CB50-E375-4718-B4C0-9AD12EFA2F84} - C:\WINDOWS\System32\aclayer.dll
O2 - BHO: IeCatch2 Class - {A5366673-E8CA-11D3-9CD9-0090271D075B} - C:\PROGRA~1\FlashGet\jccatch.dll
O2 - BHO: AcroIEToolbarHelper Class - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - C:\PROGRA~1\FlashGet\fgiebar.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll
O4 - HKLM\..\Run: [S3TRAY2] S3Tray2.exe
O4 - HKLM\..\Run: [SynTPLpr] C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [BluetoothAuthenticationAgent] rundll32.exe irprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [TPKMAPHELPER] C:\Program Files\ThinkPad\Utilities\TpKmapAp.exe -helper
O4 - HKLM\..\Run: [TpShocks] TpShocks.exe
O4 - HKLM\..\Run: [TPHOTKEY] C:\PROGRA~1\ThinkPad\PkgMgr\HOTKEY\TPHKMGR.exe
O4 - HKLM\..\Run: [BMMLREF] C:\Program Files\ThinkPad\Utilities\BMMLREF.EXE
O4 - HKLM\..\Run: [BMMMONWND] rundll32.exe C:\PROGRA~1\ThinkPad\UTILIT~1\BatInfEx.dll,BMMAutonomicMonitor
O4 - HKLM\..\Run: [TP4EX] tp4ex.exe
O4 - HKLM\..\Run: [EZEJMNAP] C:\PROGRA~1\ThinkPad\UTILIT~1\EzEjMnAp.Exe
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [UC_Start] C:\Program Files\IBM\Updater\\ucstartup.exe
O4 - HKLM\..\Run: [ibmmessages] C:\Program Files\IBM\Messages By IBM\\ibmmessages.exe
O4 - HKLM\..\Run: [UpdateManager] "c:\Program Files\Common Files\Sonic\Update Manager\sgtray.exe" /r
O4 - HKLM\..\Run: [QCTRAY] C:\Program Files\ThinkPad\ConnectUtilities\QCTRAY.EXE
O4 - HKLM\..\Run: [QCWLICON] C:\Program Files\ThinkPad\ConnectUtilities\QCWLICON.EXE
O4 - HKLM\..\Run: [BMMGAG] RunDll32 C:\PROGRA~1\ThinkPad\UTILIT~1\pwrmonit.dll,StartPwrMonitor
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [MSPY2002] C:\WINDOWS\System32\IME\PINTLGNT\ImScInst.exe /SYNC
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: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe /Consumer
O4 - HKLM\..\Run: [DAEMON Tools-1033] "C:\Program Files\D-Tools\daemon.exe"  -lang 1033
O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe
O4 - HKLM\..\Run: [IMSCMIG40W] C:\PROGRA~1\COMMON~1\MICROS~1\IME\IMSC40W\IMSCMIG.EXE /SetPreload /Log
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe"  -osboot
O4 - HKLM\..\Run: [Acrobat Assistant 7.0] "C:\Program Files\Adobe\Acrobat 7.0\Distillr\Acrotray.exe"
O4 - HKLM\..\Run: [TrackPointSrv] tp4serv.exe
O4 - HKLM\..\Run: [BigDogPath] C:\WINDOWS\VM_STI.EXE ZSMC USB PC Camera
O4 - HKLM\..\Run: [msstart] C:\WINDOWS\system32\msstart.exe
O4 - HKCU\..\Run: [ibmmessages] C:\Program Files\IBM\Messages By IBM\ibmmessages.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [TPKMAPMN] C:\Program Files\ThinkPad\Utilities\TpKmapMn.exe
O4 - Global Startup: Adobe Acrobat Speed Launcher.lnk = %SystemRoot%\Installer\{AC76BA86-1033-0000-7760-000000000002}\SC_Acrobat.exe
O4 - Global Startup: Digital Line Detect.lnk = ?
O4 - Global Startup: National University of Singapore NUS-VPN Client.lnk = C:\Program Files\NUS-VPN\vpngui.exe
O8 - Extra context menu item: Convert link target to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert link target to existing PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert selected links to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: Convert selected links to existing PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: Convert selection to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert selection to existing PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert to existing PDF - res://C:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: 使用网际快车下载 - C:\Program Files\FlashGet\jc_link.htm
O8 - Extra context menu item: 使用网际快车下载全部链接 - C:\Program Files\FlashGet\jc_all.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\IBM\Java141\jre\bin\NPJPI141.dll
O9 - Extra 'Tools' menuitem: IBM Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\IBM\Java141\jre\bin\NPJPI141.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
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: 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: [JAVA_IBM] Java (IBM)
O16 - DPF: {0CA54D3F-CEAE-48AF-9A2B-31909CB9515D} (Edit Class) - https://www.sz1.cmbchina.com/download/CMBEdit.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/msnmessengersetupdownloader.cab
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = stu.nus.edu.sg
O17 - HKLM\Software\..\Telephony: DomainName = stu.nus.edu.sg
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = stu.nus.edu.sg
O17 - HKLM\System\CS2\Services\Tcpip\Parameters: Domain = stu.nus.edu.sg
O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation (ccPwdSvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
O23 - Service: Cisco Systems, Inc. VPN Service (CVPND) - Cisco Systems, Inc. - C:\Program Files\NUS-VPN\cvpnd.exe
O23 - Service: IBM PM Service (IBMPMSVC) - Unknown owner - C:\WINDOWS\system32\ibmpmsvc.exe
O23 - Service: Norton AntiVirus Auto-Protect Service (navapsvc) - Symantec Corporation - C:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton AntiVirus Firewall Monitor Service (NPFMntor) - Symantec Corporation - C:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
O23 - Service: QCONSVC - IBM Corp. - C:\WINDOWS\System32\QCONSVC.EXE
O23 - Service: RegSrvc - Intel Corporation - C:\WINDOWS\System32\RegSrvc.exe
O23 - Service: Spectrum24 Event Monitor (S24EventMonitor) - Intel Corporation  - C:\WINDOWS\System32\S24EvMon.exe
O23 - Service: SAVScan - Symantec Corporation - C:\Program Files\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service (SBService) - Symantec Corporation - C:\PROGRA~1\COMMON~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec SPBBCSvc (SPBBCSvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: Symantec Core LC - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
O23 - Service: IBM KCU Service (TpKmpSVC) - Unknown owner - C:\WINDOWS\system32\TpKmpSVC.exe
O23 - Service: URT Client Service (urtclientservice) - Unknown owner - C:\WINDOWS\System32\urtclsvc.exe

用的是IBM ThinkPad系列笔记本，所以那些以TP开头的程序多半是指Think Pad。

顶上来。请哪位高手帮我看看

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

终止下列进程

C:\WINDOWS\system32\msstart.exe

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: Router Layer - {5EB7CB50-E375-4718-B4C0-9AD12EFA2F84} - C:\WINDOWS\System32\aclayer.dll
O4 - HKLM\..\Run: [msstart] C:\WINDOWS\system32\msstart.exe

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\aclayer.dll
C:\WINDOWS\system32\msstart.exe