求大侠帮忙！！每次开机瑞星查杀都出现，杀不掉！

这是瑞星查杀日志：
Backdoor.Gpigeon.hv    清除成功    05-08-23 13:35    手动扫描        csrss.exe>>C:\WINDOWS\Microsoft AutoUpdate_Hook.DLL
Backdoor.Gpigeon.hv    清除成功    05-08-23 13:35    手动扫描        lsass.exe>>C:\WINDOWS\Microsoft AutoUpdate_Hook.DLL
Backdoor.Gpigeon.hv    清除成功    05-08-23 13:36    手动扫描        RAVMON.EXE>>C:\WINDOWS\Microsoft AutoUpdate_Hook.DLL
Backdoor.Gpigeon.hv    清除成功    05-08-23 13:36    手动扫描        RAVTIMER.EXE>>C:\WINDOWS\Microsoft AutoUpdate_Hook.DLL
Backdoor.Gpigeon.ii    清除成功    05-08-23 13:36    手动扫描        IEXPLORE.EXE>>C:\WINDOWS\Microsoft AutoUpdate.DLL
Backdoor.Gpigeon.hv    清除成功    05-08-23 13:36    手动扫描        CCENTER.EXE>>C:\WINDOWS\Microsoft AutoUpdate_Hook.DLL
Backdoor.Gpigeon.hv    清除成功    05-08-23 13:36    手动扫描        Ravmond.exe>>C:\WINDOWS\Microsoft AutoUpdate_Hook.DLL
Backdoor.Gpigeon.hv    清除成功    05-08-23 13:36    手动扫描        RavStub.exe>>C:\WINDOWS\Microsoft AutoUpdate_Hook.DLL


hijackthis 日志
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxsrvc.dll
O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: C-DillaCdaC11BA - Macrovision - C:\WINDOWS\System32\drivers\CDAC11BA.EXE
O23 - Service: Macromedia Licensing Service - Unknown owner - C:\Program Files\Common Files\Macromedia Shared\Service\Macromedia Licensing.exe
O23 - Service: Microsoft AutoUpdate - Unknown owner - C:\WINDOWS\Microsoft AutoUpdate.exe
O23 - Service: Rising Process Communication Center (RsCCenter) - rising - C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
O23 - Service: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - C:\PROGRAM FILES\RISING\RAV\Ravmond.exe


5² Y÷v±³çbbs.ikaka.com3KփQϊ“¸

为此我已经从装系统了。。。5² Y÷v±³çbbs.ikaka.com3KփQϊ“¸