开机运行后,用瑞星杀毒,发现Backdoor.Gpigeon.uql,然后按提示杀毒,可开机后依然能发现病毒,请问怎么处理?
以下是用HijackThis1991扫描后得到的结果,请问下一步该如何?


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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Rising\Rav\CCenter.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Rising\Rav\RavTask.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Thunder Network\Thunder\Program\Thunder5.exe
C:\WINDOWS\system32\taskmgr.exe
C:\WINDOWS\system32\mshta.exe
C:\WINDOWS\system32\mshta.exe
C:\WINDOWS\system32\mshta.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\WINDOWS\system32\conime.exe
C:\Program Files\Rising\Rfw\rfwmain.exe
c:\program files\rising\rfw\rfwsrv.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Rising\Rav\RsLogVw.exe
C:\Program Files\Rising\Rav\Ravmond.exe
C:\Program Files\Rising\Rav\RAVMON.EXE
C:\Program Files\Rising\Rav\RavStub.exe
c:\Program Files\WinRAR\WinRAR.exe
C:\WINDOWS\system32\wuauclt.exe
C:\DOCUME~1\bill\LOCALS~1\Temp\Rar$EX41.641\HijackThis1991zww.exe

O4 - 启动项HKLM\\Run: [RavTask] "C:\Program Files\Rising\Rav\RavTask.exe" -system
O4 - 启动项HKLM\\Run: [RfwMain] "C:\Program Files\Rising\Rfw\rfwmain.exe" -Startup
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Startup: QQ.lnk = C:\Program Files\Tencent\QQ\CoralQQ.exe
O8 - IE右键菜单中的新增项目: &使用迅雷下载 - C:\Program Files\Thunder Network\Thunder\Program\GetUrl.htm
O8 - IE右键菜单中的新增项目: &使用迅雷下载全部链接 - C:\Program Files\Thunder Network\Thunder\Program\GetAllUrl.htm
O8 - IE右键菜单中的新增项目: 上传到QQ网络硬盘 - C:\Program Files\Tencent\QQ\AddToNetDisk.htm
O8 - IE右键菜单中的新增项目: 导出到 Microsoft Office Excel(&X) - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - IE右键菜单中的新增项目: 添加到QQ自定义面板 - C:\Program Files\Tencent\QQ\AddPanel.htm
O8 - IE右键菜单中的新增项目: 添加到QQ表情 - C:\Program Files\Tencent\QQ\AddEmotion.htm
O8 - IE右键菜单中的新增项目: 用QQ彩信发送该图片 - C:\Program Files\Tencent\QQ\SendMMS.htm
O9 - 浏览器额外的按钮: 信息检索 - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - 浏览器额外的按钮: (no name) - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\WINDOWS\system32\shdocvw.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:\WINDOWS\system32\shdocvw.dll
O9 - 浏览器额外的按钮: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - 浏览器额外的“工具”菜单项: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O10 - Broken Internet access because of LSP provider 'c:\windows\system32\cdnns.dll' missing
O16 - DPF: {1ED48504-8834-11D5-AC75-0008C73FD642} (ProductView Express) - file://D:\Program Files\proeWildfire 2.0\i486_nt\obj\pvx_install.exe
O16 - DPF: {1F831FA1-42FC-11D4-95A6-0080AD30DCE1} (InstaFred) - file://D:\Program Files\AutoCAD 2002\InstFred.ocx
O16 - DPF: {78AF2F24-A9C3-11D3-BF8C-0060B0FCC122} (AcDcToday 控件) - file://D:\Program Files\AutoCAD 2002\AcDcToday.ocx
O16 - DPF: {AE563722-B4F5-11D4-A415-00108302FDFD} (NOXLATE-BANR) - file://D:\Program Files\AutoCAD 2002\InstBanr.ocx
O16 - DPF: {F281A59C-7B65-11D3-8617-0010830243BD} (AcPreview 控件) - file://D:\Program Files\AutoCAD 2002\AcPreview.ocx
O17 - HKLM\System\CCS\Services\Tcpip\..\{A30B891F-7DE3-45D0-A467-6D2AB32809F4}: NameServer = 202.114.0.242,202.114.0.131
O23 - NT 服务: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - NT 服务: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - NT 服务: Rising Proxy  Service (RfwProxySrv) - Beijing Rising Technology Co., Ltd. - c:\program files\rising\rfw\rfwproxy.exe
O23 - NT 服务: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Co., Ltd. - c:\program files\rising\rfw\rfwsrv.exe
O23 - NT 服务: Rising Process Communication Center (RsCCenter) - Beijing Rising Technology Co., Ltd. - 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