我电脑最近突然变的比较卡．．．但ＣＰＵ使用率却正常．．不知道为什么用瑞星也查不出有什么毒．．．

大大帮我看下进程是不是有什么问题．．谢谢啦

ctfmon.exe
rundll32.exe
stormdownloader.exe
iexplore.exe
EXPLORER.EXE
RfwMain.exe
realsched.exe
alg.exe
wdfmge.exe
SVCHOST.EXE
SAgent2.EXE
taskmgr.exe
Ravtask.exe
RavStub.exe
SPOOLSV.EXE
RFWSRV.EXE
ravMom.exe
ravMonD.exe
SVCHOST.EXE
QQ.EXE
SVCHOST.EXE
SVCHOST.EXE
LSASS.EXE
SERVICES.EXE
WINLOGON.EXE
CSRSS.EXE
SMSS.EXE
procexp.exe
Ylive.exe
System
System Idle process


高手大大帮下