谢谢：帮我看看日志。教我怎么清除它Backdoor.Gpigeon.5.dq
保存于      12:21:32 PM, 日期 10/9/2005
操作系统：  Windows XP SP1 (WinNT 5.01.2600)
浏览器：    Internet Explorer v6.00 SP1 (6.00.2800.1106)

当前运行的进程：         
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\Rfw\rfwsrv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\System32\GEARSEC.EXE
C:\WINDOWS\System32\nvsvc32.exe
C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
C:\PROGRAM FILES\RISING\RAV\Ravmond.exe
C:\PROGRAM FILES\RISING\RAV\RavStub.exe
C:\WINDOWS\system32\rundll32.exe
C:\PROGRA~1\RISING\RAV\RAVMON.EXE
C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\PROGRA~1\Yahoo!\Assistant\yassistse.exe
C:\Program Files\rising\Rfw\RfwMain.exe
C:\Program Files\Logitech\MouseWare\system\em_exec.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\WINDOWS\System32\wuauclt.exe
F:\无界网\无界\季节\秋\HijackThis1991zww.exe

O2 - BHO: ???￠?úê? - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\Assistant\Assist\yasbar.dll
O3 - IE工具栏增项: ???￠?úê? - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\Assistant\Assist\yasbar.dll
O4 - 启动项HKLM\\Run: [helper.dll] C:\WINDOWS\system32\rundll32.exe C:\PROGRA~1\3721\helper.dll,Rundll32
O4 - 启动项HKLM\\Run: [RavMon] C:\PROGRA~1\RISING\RAV\RAVMON.EXE -SYSTEM
O4 - 启动项HKLM\\Run: [RavTimer] C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
O4 - 启动项HKLM\\Run: [YDTMain.exe] rem C:\PROGRA~1\YDT\YDTMain.exe
O4 - 启动项HKLM\\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe"  -osboot
O4 - 启动项HKLM\\Run: [Logitech Utility] Logi_MwX.Exe
O4 - 启动项HKLM\\Run: [yassistse] "C:\PROGRA~1\Yahoo!\Assistant\yassistse.exe"
O4 - 启动项HKLM\\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - 启动项HKLM\\RunOnce: [RavStub] "C:\PROGRAM FILES\RISING\RAV\ravstub.exe" /RUNONCE
O8 - IE右键菜单中的新增项目: 添加到QQ自定义面板 - F:\?T??í?\?T??\???ú\??\D??¨???t?D (2)\AddPanel.htm
O8 - IE右键菜单中的新增项目: 添加到QQ表情 - F:\?T??í?\?T??\???ú\??\D??¨???t?D (2)\AddEmotion.htm
O8 - IE右键菜单中的新增项目: 用QQ彩信发送该图片 - F:\?T??í?\?T??\???ú\??\D??¨???t?D (2)\SendMMS.htm
O9 - 浏览器额外的按钮: ê??ú?ìD? - {00000000-0000-0001-0001-596BAEDD1289} - http://sms.3721.com/ie/index.htm?pid=U_znmq_139674 (file missing)
O9 - 浏览器额外的按钮: Yahoo 1Gμ?óê - {507F9113-CD77-4866-BA92-0E86DA3D0B97} - http://cn.mail.yahoo.com/promo/rd1 (file missing)
O9 - 浏览器额外的按钮: ?°±|à?è¤?à - {59BC54A2-56B3-44a0-93E5-432D58746E26} - http://hot.3721.com/rd/shop_btn.htm (file missing)
O9 - 浏览器额外的按钮: é?í??úê? - {5D73EE86-05F1-49ed-B850-E423120EC338} - http://assistant.3721.com/index.htm?fb=Cns (file missing)
O9 - 浏览器额外的按钮: QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - F:\?T??í?\?T??\???ú\??\D??¨???t?D (2)\QQ.EXE (file missing)
O9 - 浏览器额外的“工具”菜单项: ìú??QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - F:\?T??í?\?T??\???ú\??\D??¨???t?D (2)\QQ.EXE (file missing)
O9 - 浏览器额外的按钮: ?é?°á?ìì - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - http://cn.rd.yahoo.com/home/messenger/bjk/clientbtn/?http://cn.messenger.yahoo.com/ (file missing)
O9 - 浏览器额外的按钮: (no name) - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://assistant.3721.com/security1.htm?fb=Cns (file missing)
O9 - 浏览器额外的“工具”菜单项: DT?′?ˉàà?÷ - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://assistant.3721.com/security1.htm?fb=Cns (file missing)
O9 - 浏览器额外的按钮: (no name) - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://assistant.3721.com/clean1.htm?fb=Cns (file missing)
O9 - 浏览器额外的“工具”菜单项: ??àíé?í????? - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://assistant.3721.com/clean1.htm?fb=Cns (file missing)
O11 - Options group: [!CNS]  í???êμ??
O14 - IERESET.INF: SEARCH_PAGE_URL=
O14 - IERESET.INF: START_PAGE_URL=
O15 - 添加的受信任的 IP 地址范围: 213.159.117.202 (HKLM)
O16 - DPF: {73E4740C-08EB-4133-896B-8D0A7C9EE3CD} (AxInputControl Class) - https://mybank.icbc.com.cn/icbc/perbank/AxSafeControls.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDownloader.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{1805061D-966E-4D70-8C5B-AFB7FF971D0B}: NameServer = 202.106.0.20 202.106.46.151
O17 - HKLM\System\CS1\Services\Tcpip\..\{1805061D-966E-4D70-8C5B-AFB7FF971D0B}: NameServer = 202.106.0.20 202.106.46.151
O23 - NT 服务: DCOM+ System Application (DCOMSysApp) - Unknown owner - C:\WINDOWS\Winhlp16.exe
O23 - NT 服务: GEARSecurity - GEAR Software - C:\WINDOWS\System32\GEARSEC.EXE
O23 - NT 服务: iPod ·t?? (iPodService) - Apple Computer, Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - NT 服务: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - NT 服务: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Corporation Limited - C:\Program Files\rising\Rfw\rfwsrv.exe
O23 - NT 服务: Rising Process Communication Center (RsCCenter) - rising - C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
O23 - NT 服务: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - C:\PROGRAM FILES\RISING\RAV\Ravmond.exe

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。）

开始→控制面板→性能和维护→管理工具→服务→查找: DCOM+ System Application→右击→属性→启动类型→禁止→应用→停止→确定。

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）
O15 - 添加的受信任的 IP 地址范围: 213.159.117.202 (HKLM)
O23 - NT 服务: DCOM+ System Application (DCOMSysApp) - Unknown owner - C:\WINDOWS\Winhlp16.exe

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→找到以下文件并删除：
C:\WINDOWS\Winhlp16.exe
C:\WINDOWS\Winhlp16.dll
C:\WINDOWS\Winhlp16_hook.dll
C:\WINDOWS\Winhlp16key.dll