仙桃市 2015 老年人口:请问俺的系统？？？？

有毒吗 或有其它什么问题吗 请详解 谢谢
扫描日志
当前运行的进程：
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\csrss.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:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\Rundll32.exe
C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe
C:\WINDOWS\system32\wdfmgr.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\System32\alg.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Internet Explorer\iexplore.exe
E:\HijackThis1991汉化版\HijackThis1991zww.exe

R3 - URLSearchHook: (no name) - {BB936323-19FA-4521-BA29-ECA6A121BC78} - (no file)
R3 - URLSearchHook: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yasbar.dll (file missing)
O2 - BHO: ThunderIEHelper - {0005A87D-D626-4B3A-84F9-1D9571695F55} - C:\WINDOWS\system32\xunleibho_v14.dll
O2 - BHO: yPhtb - {33BBE430-0E42-4f12-B075-8D21ACB10DCB} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yphtb.dll (file missing)
O2 - BHO: Anti Fish - {38928D50-8A48-44C2-945F-D2F23F771410} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yangling.dll (file missing)
O2 - BHO: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yasbar.dll (file missing)
O2 - BHO: QQIEHelper - {54EBD53A-9BC1-480B-966A-843A333CA162} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O2 - BHO: YDragSearch - {62EED7C6-9F02-42f9-B634-98E2899E147B} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\YDRAGS~1.DLL (file missing)
O2 - BHO: MMSAssist - {6671A431-5C3D-463d-A7CF-5587F9B7E191} - C:\PROGRA~1\MMSASS~1\Mmsass~1.dll
O2 - BHO: IE - {D157330A-9EF3-49F8-9A67-4141AC41ADD4} - C:\WINDOWS\downlo~1\CnsHook.dll
O2 - BHO: 珊瑚虫 工具栏 - {D74EC18E-3DDD-4174-B1B1-949FE3B8366D} - C:\Program Files\Infofo Bar\infofobar.dll
O3 - IE工具栏增项: (no name) - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - (no file)
O3 - IE工具栏增项: (no name) - {B580CF65-E151-49C3-B73F-70B13FCA8E86} - (no file)
O3 - IE工具栏增项: 珊瑚虫 工具栏 - {D74EC18E-3DDD-4174-B1B1-949FE3B8366D} - C:\Program Files\Infofo Bar\infofobar.dll
O3 - IE工具栏增项: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yasbar.dll (file missing)
O4 - 启动项HKLM\\Run: [zcom] \zPlatform.exe MIN
O4 - 启动项HKLM\\Run: [SoundMax] "C:\Program Files\Analog Devices\SoundMAX\smax4.exe" /tray
O4 - 启动项HKLM\\Run: [KAVPersonal50] "C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus Personal\kav.exe" /minimize
O4 - 启动项HKLM\\Run: [CnsMin] Rundll32.exe C:\WINDOWS\downlo~1\CnsMin.dll,Rundll32
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Startup: desktop.ini
O4 - Global Startup: desktop.ini
http://post.baidu.com/f?kz=90757819
谢谢你们 可我还想知道具体怎样做（以前试过 没卸掉yahoo）我很菜 麻烦各位大虾了 如真能帮我解决 我再用同主题高分谢你喔！