１．怎样把　酷站导航　清理干净
２．怎么样清除　Trojan.Delf.bbx
　　路径：C:\WINDOWS\system32
　　文件名：rpcs.dll
　　用瑞星杀完，可是还经常报毒
３．没有浏览任何网页，进程里也有IEXPLORE，结束进程后马上还会出现，用瑞星杀不到，怎么清除？
下面是日志，请大家帮忙看看，指点一下，谢谢！！
Logfile of HijackThis v1.99.1
Scan saved at 19:53:39, on 2006-9-15
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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:\Program Files\Rising\Rav\CCenter.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Rising\Rav\Ravmond.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Rising\Rav\RavTask.exe
C:\Program Files\Rising\Rav\Ravmon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
F:\ha_hijackthis_1991\HijackThis.exe

O4 - HKLM\..\Run: [RavTask] "C:\Program Files\Rising\Rav\RavTask.exe" -system
O4 - HKLM\..\Run: [NvCplDaemon] ; RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] ; nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] ; RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O8 - Extra context menu item: &使用迅雷下载 - D:\迅雷\Program\GetUrl.htm
O8 - Extra context menu item: &使用迅雷下载全部链接 - D:\迅雷\Program\GetAllUrl.htm
O8 - Extra context menu item: 导出到 Microsoft Office Excel(&X) - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: 启动迅雷 - {0062C9BD-B349-40DE-91A0-755F37ACD559} - D:\迅雷\Thunder.exe
O9 - Extra 'Tools' menuitem: 启动迅雷 - {0062C9BD-B349-40DE-91A0-755F37ACD559} - D:\迅雷\Thunder.exe
O9 - Extra button: 微软 - {6096E38F-5AC1-4391-8EC4-75DFA92FB32F} - http://www.microsoft.com/china/index.htm (file missing)
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\WINDOWS\system32\shdocvw.dll
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\WINDOWS\system32\shdocvw.dll
O17 - HKLM\System\CCS\Services\Tcpip\..\{86273EC5-B701-4EA8-9E4E-16E11F485867}: NameServer = 202.99.96.68 202.99.64.69
O17 - HKLM\System\CCS\Services\Tcpip\..\{C11FA59E-C20F-4E1B-908F-E606A615CAEF}: NameServer = 202.99.96.68
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Rising Process Communication Center (RsCCenter) - Beijing Rising Technology Co., Ltd. - C:\Program Files\Rising\Rav\CCenter.exe
O23 - Service: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - C:\Program Files\Rising\Rav\Ravmond.exe