小妹最近被一个病毒困扰多日，请各位大虾帮一下。
小妹操作系统是WINXP-SP1，原用诺顿杀毒，最近改为瑞星（正版），启动瑞星杀毒，查到病毒Backdoor.RBot.jzl,路径：WINDOWS\system32\,文件名:crease.exe,并删除成功.系统运行下段时间后,瑞星监控又报发现病毒(同上),并清除,之后系统变慢,形同死机,WIN任务管理器调不出来,不知是什么进程在占用CPU时间.强行关机重启,运行瑞星,无病毒,运行一段时间,瑞星临控又报发现病毒(同上),然后又是系统变慢什么程序都运行不了,也关不了机.重装系统现象依旧.
各位大虾帮小妹看看是怎么回事,应该怎么解决,谢谢!!

Logfile of HijackThis v1.99.0
Scan saved at 11:28:13, on 2005-10-3
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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:\WINDOWS\System32\svchost.exe
C:\PROGRAM FILES\RISING\RAV\Ravmond.exe
c:\program files\rising\rfw\rfwsrv.exe
C:\PROGRAM FILES\RISING\RAV\RavStub.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
c:\program files\rising\rfw\RfwMain.exe
C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
C:\PROGRA~1\RISING\RAV\RAVMON.EXE
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\WINDOWS\System32\ctfmon.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
C:\WINDOWS\system32\slserv.exe
C:\Program Files\广州城市热点资讯有限公司\Dr.COM 客户端软件\ishare_user.exe
C:\WINDOWS\system32\notepad.exe
C:\Program Files\Internet Explorer\iexplore.exe
E:\下载\HijackThis\HijackThis.exe

O2 - BHO: IDDTInitObj Class - {15DDE989-CD45-4561-BF99-D22C0D5C2B74} - C:\PROGRA~1\sina\UC\UCddt\ddtinit.dll
O2 - BHO: KillObj Class - {66C28884-4E5D-494B-80C9-CAA27528FD6D} - C:\PROGRA~1\sina\UC\UCddt\ddtkillw.ocx
O3 - Toolbar: 电台(&R) - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: 新浪点点通 - {F60C7D81-8471-4D40-AAFE-56D318F34C2D} - C:\PROGRA~1\sina\UC\UCddt\DDTONG~1.DLL
O4 - HKLM\..\Run: [RavTimer] C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
O4 - HKLM\..\Run: [RavMon] C:\PROGRA~1\RISING\RAV\RAVMON.EXE -SYSTEM
O4 - HKLM\..\Run: [RfwMain] "C:\Program Files\Rising\Rfw\rfwmain.exe" -Startup
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe"  -osboot
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O8 - Extra context menu item: 使用彩信超级自写发送到手机 - http://mms.sina.com.cn/mmsnews.html
O8 - Extra context menu item: 使用新浪下载助手下载 - C:\PROGRA~1\sina\UC\UCddt\sinadl.htm
O8 - Extra context menu item: 发送图片到手机(&M) - http://sms.sina.com.cn/diy/send.html?from=467
O8 - Extra context menu item: 收藏此页到新浪ViVi - http://vivi.sina.com.cn/collect/click.php?agent=ddt
O8 - Extra context menu item: 新浪搜索 - http://cha.sina.com.cn/ddt.html
O9 - Extra button: 新浪UC - {2253922F-1B26-4C74-8B57-E3AEE748DBB8} - C:\Program Files\sina\UC\UC.exe
O9 - Extra button: 联想 - {6096E38F-5AC1-4391-8EC4-75DFA92FB32F} - http://www.legend.com (file missing)
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra button: 新浪点点通 - {F60C7D81-8471-4D40-AAFE-56D318F34C2D} - C:\PROGRA~1\sina\UC\UCddt\DDTONG~1.DLL
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra button: (no name) - {974AD624-EA50-4831-A6C0-3040F6665396} - C:\PROGRA~1\sina\UC\UCddt\rssband.dll (HKCU)
O9 - Extra 'Tools' menuitem: 新浪点点通阅读器 - {974AD624-EA50-4831-A6C0-3040F6665396} - C:\PROGRA~1\sina\UC\UCddt\rssband.dll (HKCU)
O9 - Extra button: 新浪点点通阅读器 - {F0646DC8-58CD-4C64-8F6B-525043914685} - C:\PROGRA~1\sina\UC\UCddt\rssband.dll (HKCU)
O14 - IERESET.INF: START_PAGE_URL=http://www.legend.com
O17 - HKLM\System\CCS\Services\Tcpip\..\{108062CC-A350-43E7-BBD2-69AD0DA58BB9}: NameServer = 192.168.200.99,192.168.200.100
O17 - HKLM\System\CS1\Services\Tcpip\..\{108062CC-A350-43E7-BBD2-69AD0DA58BB9}: NameServer = 192.168.200.99,192.168.200.100
O17 - HKLM\System\CS2\Services\Tcpip\..\{108062CC-A350-43E7-BBD2-69AD0DA58BB9}: NameServer = 192.168.200.99,192.168.200.100
O23 - Service: NVIDIA Driver Helper Service - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: Rising Personal Firewall Service - Beijing Rising Technology Corporation Limited - c:\program files\rising\rfw\rfwsrv.exe
O23 - Service: Rising Process Communication Center - rising - C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
O23 - Service: RsRavMon Service - Beijing Rising Technology Co., Ltd. - C:\PROGRAM FILES\RISING\RAV\Ravmond.exe
O23 - Service: SmartLinkService - Unknown - slserv.exe (file missing)
O23 - Service: Sybase BCKServer _ LEGEND-35S2TP15_BS - Unknown - C:\Sybase\bin\bcksrvr.exe
O23 - Service: Sybase HISServer_LEGEND-35S2TP15_HS - Unknown - C:\Sybase\bin\histsrvr.exe
O23 - Service: Sybase MONServer _ LEGEND-35S2TP15_MS - Unknown - C:\Sybase\bin\monsrvr.exe
O23 - Service: Sybase SQLServer _ LEGEND-35S2TP15 - Unknown - C:\Sybase\bin\sqlsrvr.exe
O23 - Service: Sybase XPServer _ LEGEND-35S2TP15_XP - Unknown - C:\Sybase\bin\xpserver.exe

以上是我的系统扫描结果，请多帮忙！！

怎么没人帮我?
还好我屏蔽了TCP135,137,139,445,2745,3127,3389,6129和UDP135,137,139,445,1025端口;系统运行到现在还没出现瑞星监控报警及系统变慢现象.问题好象解决了,但愿是解决了^^^