我的机子只要一打开IE浏览器，进程里就会出现一个与系统进程名相同的rundll32.exe进程，它的用户名是Admin，此后上网速度就会奇慢，下面是我注销后立即打开IE浏览器后，用hijackthis扫描的日志，恳请大虾帮忙解决！！！！！！！！
Logfile of HijackThis v1.99.1
Scan saved at 15:24:16, on 2006-5-30
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
d:\Program Files\Rising\Rav\CCenter.exe
C:\WINDOWS\System32\svchost.exe
d:\program files\rising\rfw\rfwsrv.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\drivers\CDAC11BA.EXE
C:\WINDOWS\system32\slserv.exe
C:\WINDOWS\system32\rundll32.exe
d:\Program Files\Rising\Rav\Ravmond.exe
d:\Program Files\Rising\Rav\RavStub.exe
C:\WINDOWS\system32\wscntfy.exe
C:\WINDOWS\Explorer.EXE
D:\Program Files\Rising\Rav\RavTask.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\WINDOWS\system32\ctfmon.exe
d:\program files\rising\rfw\RfwMain.exe
C:\WINDOWS\system32\taskmgr.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\WINDOWS\system32\rundll32.exe
C:\Documents and Settings\Admin\桌面\HijackThis.exe
R3 - Default URLSearchHook is missing
F2 - REG:system.ini: UserInit=userinit.exe,
O2 - BHO: std software - {6A512BF7-EC78-4e8d-9841-6C02E8FA9838} - C:\WINDOWS\SYSTEM32\stdup.dll
O2 - BHO: std software - {6A512BF7-EC78-4e8d-9841-6C02E8FA9838}? - (no file)
O3 - Toolbar: 卡卡上网安全助手 - {DB9ECD4F-FB8F-4311-B3CE-90B976C2707C} - C:\WINDOWS\system32\kakatool.dll
O4 - HKLM\..\Run: [RavTask] "d:\Program Files\Rising\Rav\RavTask.exe" -system
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: &使用迅雷下载 - C:\Program Files\Thunder Network\Thunder\geturl.htm
O8 - Extra context menu item: &使用迅雷下载全部链接 - C:\Program Files\Thunder Network\Thunder\getallurl.htm
O10 - Unknown file in Winsock LSP: c:\windows\system32\cdnns.dll
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1135600157515
O16 - DPF: {87CCFDB0-C4BE-4BC2-A78C-9EAA7CF96667} (pcastup Class) - http://ps.itv.mop.com/dn/files/vodupdate_1.0.0.8_20051009.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{1E280F18-5A50-4299-B1AC-E49F7550A029}: NameServer = 221.228.255.1
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxsrvc.dll
O23 - Service: C-DillaCdaC11BA - Macrovision - C:\WINDOWS\system32\drivers\CDAC11BA.EXE
O23 - Service: NTService (NetService) - mk music - C:\WINDOWS\system32\ntservice.exe
O23 - Service: Rising Proxy Service (RfwProxySrv) - Beijing Rising Technology Co., Ltd. - d:\program files\rising\rfw\rfwproxy.exe
O23 - Service: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Co., Ltd. - d:\program files\rising\rfw\rfwsrv.exe
O23 - Service: Rising Process Communication Center (RsCCenter) - Beijing Rising Technology Co., Ltd. - d:\Program Files\Rising\Rav\CCenter.exe
O23 - Service: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - d:\Program Files\Rising\Rav\Ravmond.exe
O23 - Service: SmartLinkService (SLService) - - C:\WINDOWS\SYSTEM32\slserv.exe
