我的电脑（WIN2000）用瑞星17.51.01版本发现病毒：Backdoor.Rbot.lgr（文件名：cytob.exe），但杀不了，而且经常会弹出空白网页（每次地址不同），求教各位该怎么办？？？？
开机时即显示：尝试运行“C:\WINNT\system32\kuduk.dll”,DllGetVersion”时发生意外。是什么问题？
还有rwnt.exe是什么进程？？
HijackThis_zww汉化版扫描日志 V1.99.1
保存于 9:23:41, 日期 2005-11-01
操作系统： Windows 2000 SP4 (WinNT 5.00.2195)
浏览器： Internet Explorer v6.00 SP1 (6.00.2800.1106)
当前运行的进程：
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\PROGRAM FILES\RISING\RAV\Ravmond.exe
C:\PROGRAM FILES\RISING\RAV\RavStub.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\WINNT\U1lTVEVN\command.exe
C:\PROGRA~1\Navnt\defwatch.exe
C:\WINNT\System32\svchost.exe
C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
C:\WINNT\system32\MSTask.exe
C:\WINNT\cytob.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\winmgt.exe
C:\WINNT\system32\mspmspsv.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\Explorer.EXE
C:\WINNT\System32\igfxtray.exe
C:\WINNT\System32\hkcmd.exe
C:\WINNT\system32\rundll32.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:\PROGRA~1\Yahoo!\ASSIST~1\YLive.exe
C:\WINNT\system32\internat.exe
C:\WINNT\system32\zstatus.exe
C:\WINNT\system32\rundll32.exe
C:\Program Files\shanda\sdo\sdovg\sdovg.exe
C:\WINNT\system32\rwnt.exe
C:\WINNT\windat.exe
C:\Documents and Settings\Administrator\桌面\HijackThis1991zww.exe
R3 - URLSearchHook: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\Assistant\Assist\yasbar.dll
O2 - BHO: (no name) - {00DBDAC8-4691-4797-8E6A-7C6AB89BC441} - C:\WINNT\system32\awvvu.dll
O2 - BHO: MSEvents
Object - {FC148228-87E1-4D00-AC06-58DCAA52A4D1} - C:\WINNT\system32\awtqn.dll
O3 - IE工具栏增项: (no name) - {E5E4E352-6947-44EE-A420-DB84EFD3FE93} - (no file)
O3 - IE工具栏增项: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - C:\PROGRA~1\FLASHGET\fgiebar.dll
O3 - IE工具栏增项: 电台(&R) - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\system32\msdxm.ocx
O3 - IE工具栏增项: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\Assistant\Assist\yasbar.dll
O4 - 启动项HKLM\\Run: [Synchronization Manager] mobsync.exe /logon
O4 - 启动项HKLM\\Run: [IgfxTray] C:\WINNT\System32\igfxtray.exe
O4 - 启动项HKLM\\Run: [HotKeysCmds] C:\WINNT\System32\hkcmd.exe
O4 - 启动项HKLM\\Run: [CnsMin] Rundll32.exe C:\WINNT\DOWNLO~1\CnsMin.dll,Rundll32
O4 - 启动项HKLM\\Run: [hp 1000 firmware] C:\Program Files\hp LaserJet 1000\fwdl.exe
O4 - 启动项HKLM\\Run: [SKYNET Personal FireWall] C:\Program Files\SkyNet\FireWall\PFW.exe
O4 - 启动项HKLM\\Run: [MS-4011 Memory Patch] D:\RavSasser.exe -Patch
O4 - 启动项HKLM\\Run: [helper.dll] C:\WINNT\system32\rundll32.exe C:\PROGRA~1\3721\helper.dll,Rundll32
O4 - 启动项HKLM\\Run: [Sygate Personal Firewall Start] servic.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: [ccproc] C:\PROGRA~1\KAMUN\Kamun.exe
O4 - 启动项HKLM\\Run: [RavTimer] C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
O4 - 启动项HKLM\\Run: [RavMon] C:\PROGRA~1\RISING\RAV\RAVMON.EXE -SYSTEM
O4 - 启动项HKLM\\Run: [YLive.exe] C:\PROGRA~1\Yahoo!\ASSIST~1\YLive.exe
O4 - 启动项HKLM\\Run: [yassistse] "C:\PROGRA~1\Yahoo!\Assistant\yassistse.exe"
O4 - 启动项HKLM\\Run: [ntdll.dll] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - 启动项HKLM\\Run: [Windowsz] rwnt.exe
O4 - 启动项HKLM\\RunServices: [Sygate Personal Firewall Start] servic.exe
O4 - 启动项HKLM\\RunServices: [Windowsz] rwnt.exe
O4 - HKCU\..\Run: [Internat.exe] internat.exe
O4 - HKCU\..\Run: [Sygate Personal Firewall Start] servic.exe
O4 - Global Startup: Microsoft Office.lnk = D:\Program Files\Microsoft Office\Office\OSA9.EXE
O8 - IE右键菜单中的新增项目: !搜一搜 - res://C:\WINNT\DOWNLO~1\CnsMinEx.dll/1003
O8 - IE右键菜单中的新增项目: 使用网际快车下载 - C:\Program Files\FlashGet\jc_link.htm
O8 - IE右键菜单中的新增项目: 使用网际快车下载全部链接 - C:\Program Files\FlashGet\jc_all.htm
O9 - 浏览器额外的按钮: 手机短信 - {00000000-0000-0001-0001-596BAEDD1289} - http://sms.3721.com/ie/index.htm (file missing)
O9 - 浏览器额外的按钮: Yahoo 1G电邮 - {507F9113-CD77-4866-BA92-0E86DA3D0B97} - http://cn.mail.yahoo.com/promo/rd1 (file missing)
O9 - 浏览器额外的按钮: 寻宝乐趣多 - {59BC54A2-56B3-44a0-93E5-432D58746E26} - http://hot.3721.com/rd/shop_btn.htm (file missing)
O9 - 浏览器额外的按钮: 上网助手 - {5D73EE86-05F1-49ed-B850-E423120EC338} - http://assistant.3721.com/index.htm?fb=Cns (file missing)
O9 - 浏览器额外的按钮: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O9 - 浏览器额外的“工具”菜单项: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O9 - 浏览器额外的按钮: FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - C:\PROGRA~1\FLASHGET\flashget.exe
O9 - 浏览器额外的“工具”菜单项: &FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - C:\PROGRA~1\FLASHGET\flashget.exe
O9 - 浏览器额外的按钮: (no name) - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O9 - 浏览器额外的“工具”菜单项: QQ炫彩工具条设置 - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O9 - 浏览器额外的按钮: 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 - 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: 修复浏览器 - {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: 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] 网络实名
O16 - DPF: {E4E2F180-CB8B-4DE9-ACBB-DA745D3BA153} (Rising Web Scan
Object) - http://download.rising.com.cn/register/pcver/autoupgradepad/Ver2005/OL2005.cab
O20 - Winlogon Notify: AdminDebug - C:\WINNT\system32\kt4ql7h51.dll
O20 - Winlogon Notify: awtqn - C:\WINNT\system32\awtqn.dll
O20 - Winlogon Notify: awvvu - C:\WINNT\SYSTEM32\awvvu.dll
O20 - Winlogon Notify: igfxcui - C:\WINNT\SYSTEM32\igfxsrvc.dll
O20 - Winlogon Notify: PCANotify - C:\WINNT\SYSTEM32\PCANotify.dll
O23 - NT 服务: pcAnywhere Host Service (awhost32) - Symantec Corporation - C:\Program Files\Symantec\pcAnywhere\awhost32.exe
O23 - NT 服务: Command Service (cmdService) - Unknown owner - C:\WINNT\U1lTVEVN\command.exe
O23 - NT 服务: DefWatch - Symantec Corporation - C:\PROGRA~1\Navnt\defwatch.exe
O23 - NT 服务: Logical Disk Manager Administrative Service (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - NT 服务: MSSvc keyboard (keyboard) - Unknown owner - c:\winnt\system32\dllcache\MSSvc.EXE (file missing)
O23 - NT 服务: MSSvc mouse (mouse) - Unknown owner - c:\winnt\system32\dllcache\MSSvc.EXE (file missing)
O23 - NT 服务: Norton AntiVirus Client (Norton AntiVirus Server) - Symantec Corporation - C:\PROGRA~1\Navnt\rtvscan.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
O23 - NT 服务: Windows Archiver (winarc) - Unknown owner - C:\WINNT\windat.exe
O23 - NT 服务: WindowsSysBoot - Unknown owner - C:\WINNT\cytob.exe (file missing)
O23 - NT 服务: Windows Security (WinMgt) - Unknown owner - C:\WINNT\system32\winmgt.exe
O23 - NT 服务: Windows Services (WinSrv) - Unknown owner - C:\WINNT\System32\scvhost.exe
