每次开机都出现“Backdoor.Gpigeon.5.a”,文件名：iexplore.exe 路径：iexplore.exe>>c:\windows\win_sys.dll
计算机监控都能查到并清除，但是下一次开机就会继续出现。郁闷中～～～

请知道的朋友告诉我该怎么办啊？

谢谢～～～
HijackThis@Qoo的扫描日志  V1.97.7
Scan saved at 14:43:29, on 2005-7-4
Platform: Windows XP SP2 (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:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\inetsrv\inetinfo.exe
C:\WINDOWS\System32\igfxtray.exe
C:\WINDOWS\System32\hkcmd.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\WINDOWS\VM_STI.EXE
C:\Program Files\rising\Rfw\Rfw.exe
C:\WINDOWS\system32\rundll32.exe
C:\PROGRA~1\3721\assistse.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
C:\PROGRA~1\RISING\RAV\RAVMON.EXE
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\gadmei\TV Plus 3.0\TVR 2.0\ScheduleTV.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\WINDOWS\System32\tcpsvcs.exe
C:\PROGRA~1\RISING\RAV\Rav.exe
C:\Program Files\Internet Explorer\iexplore.exe
D:\Program Files\QQ2004 宝藏版\QQ.exe
D:\Program Files\Tencent\TM\TMDlls\TIMPlatform.exe
C:\WINDOWS\System32\svchost.exe
D:\Program Files\QQ2004 宝藏版\QQexternal.exe
C:\Program Files\WinRAR\WinRAR.exe
C:\DOCUME~1\邓晖\LOCALS~1\Temp\Rar$EX65.500\HijackThis.exe

R3 - URLSearchHook:
O2 - BHO: (no name) - {15DDE989-CD45-4561-BF99-D22C0D5C2B74} - D:\PROGRA~1\sina\UC\UCddt\ddtinit.dll
O2 - BHO: (no name) - {A5366673-E8CA-11D3-9CD9-0090271D075B} - D:\PROGRA~1\FlashGet\jccatch.dll
O2 - BHO: AssistII - {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: YiSou - {EF1D17A9-089F-40cc-8D64-7324CDEBA0DB} - C:\PROGRA~1\yisou\yisoub.dll
O3 - Toolbar: ????? - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: ????? - {BB936323-19FA-4521-BA29-ECA6A121BC78} - C:\PROGRA~1\3721\Assist\asbar.dll
O3 - Toolbar: ????? - {F60C7D81-8471-4D40-AAFE-56D318F34C2D} - D:\PROGRA~1\sina\UC\UCddt\DDTONG~1.DLL
O3 - Toolbar: ????? - {115F6E46-FCBC-41ed-B3B5-3BDDD4AAB5E5} - C:\Program Files\yisou\yisou.dll
O3 - Toolbar: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - D:\PROGRA~1\FlashGet\fgiebar.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: [IgfxTray] C:\WINDOWS\System32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [BigDogPath] C:\WINDOWS\VM_STI.EXE USB PC Camera 301P
O4 - HKLM\..\Run: [IMSCMig] C:\PROGRA~1\COMMON~1\MICROS~1\IME\IMSC40A\IMSCMIG.EXE /Preload
O4 - HKLM\..\Run: [rfw] C:\Program Files\rising\Rfw\Rfw.exe
O4 - HKLM\..\Run: [Super Rabbit SRRestore] C:\Program Files\Super Rabbit\MagicSet\srrest.exe /autosave
O4 - HKLM\..\Run: [helper.dll] C:\WINDOWS\system32\rundll32.exe C:\PROGRA~1\3721\helper.dll,Rundll32
O4 - HKLM\..\Run: [assistse] "C:\PROGRA~1\3721\assistse.exe"
O4 - HKLM\..\Run: [NMGameX_AutoRun] C:\WINDOWS\System32\Rundll32.exe nmgamex.dll,LiveProcess /aa
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe"  -osboot
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
O8 - Extra context menu item: 使用彩信超级自写发送到手机 - http://mms.sina.com.cn/mmsnews.html
O8 - Extra context menu item: 使用新浪下载助手下载 - D:\PROGRA~1\sina\UC\UCddt\sinadl.htm
O8 - Extra context menu item: 使用网际快车下载 - D:\PROGRA~1\FlashGet\jc_link.htm
O8 - Extra context menu item: 使用网际快车下载全部链接 - D:\PROGRA~1\FlashGet\jc_all.htm
O8 - Extra context menu item: 发送图片到手机(&M) - http://sms.sina.com.cn/diy/send.html?from=467
O8 - Extra context menu item: 收藏此页到ViVi - http://vivi.sina.com.cn/collect/click.php?agent=ddt
O8 - Extra context menu item: 新浪搜索 - http://cha.sina.com.cn/ddt.html
O8 - Extra context menu item: 添加到QQ自定义面板 - D:\Program Files\QQ2004
O8 - Extra context menu item: 添加到QQ表情 - D:\Program Files\QQ2004
O8 - Extra context menu item: 用QQ彩信发送该图片 - D:\Program Files\QQ2004
O8 - Extra context menu item: 豪杰超级解霸V8实时播放 - C:\Herosoft\HeroV8\MPURLGET.HTM
O9 - Extra button: Related (HKLM)
O9 - Extra 'Tools' menuitem: Show &Related Links (HKLM)
O9 - Extra button: FlashGet (HKLM)
O9 - Extra 'Tools' menuitem: &FlashGet (HKLM)
O11 - Options group: [!CNS] 
O12 - Plugin for .pdf: C:\Program Files\Internet Explorer\PLUGINS\nppdf32.dll
O16 - DPF: {0400AC1C-EEF0-4638-A501-31D5A0DC2002} (VTPlug3 Class) - http://61.152.96.12:1995/VTrans.cab
O16 - DPF: {6924091F-CD97-41E1-B1D4-D9079409D413} (IMCv1 Control) - http://61.152.96.12:1995/talk.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - file://D:\HEROSOFT\HeroV8\DVDSkin\defskin\HTML\swflash.cab
O16 - DPF: {E4E2F180-CB8B-4DE9-ACBB-DA745D3BA153} (Rising Web Scan Object) - http://download.rising.com.cn/register/pcver/autoupgradepad/Ver2005/OL2005.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{48766C19-0A23-40E7-8992-8AE7FB8FA885}: NameServer = 202.103.103.3,218.76.192.100