为什么开机会出现这个！！按下F11，又会出现这个图标，怎么解决！
扫个日志！
Logfile of HijackThis v1.99.1
Scan saved at 21:42:51, on 2007-6-24
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
E:\瑞星\Rising\Rav\CCenter.exe
C:\WINDOWS\System32\svchost.exe
E:\瑞星\Rising\Rav\Ravmond.exe
e:\瑞星\rising\rfw\rfwsrv.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.exe
C:\WINDOWS\system32\spoolsv.exe
e:\瑞星\rising\rfw\RfwMain.exe
E:\瑞星\Rising\Rav\RavStub.exe
C:\WINDOWS\RTHDCPL.EXE
E:\瑞星\Rising\Rav\RavTask.exe
C:\WINDOWS\system32\ctfmon.exe
D:\qq\QQ.exe
C:\Program Files\Common Files\PCSuite\Services\ServiceLayer.exe
D:\qq\TIMPlatform.exe
C:\Program Files\Internet Explorer\iexplore.exe
D:\HijackThis\HijackThis.exe
R3 - URLSearchHook: ContextSearch Class - {88351CEF-BAC0-4A9B-8380-31A173E2926F} - C:\PROGRA~1\yok\toolbar.dll
F2 - REG:system.ini: Shell=Explorer.exe ChangeDisplay.exe
O2 - BHO: WebThunderBHO - {00000AAA-A363-466E-BEF5-9BB68697AA7F} - D:\迅雷\WebThunderBHO_Now.dll
O2 - BHO: ThunderBHO - {2F364305-AA45-47B5-9F9D-39A8B94E7EF7} - D:\迅雷\ComDlls\xunleiBHO_Now.dll
O2 - BHO: 珊瑚虫超级搜索 - {75FE2B5A-D3A4-4EFA-AC11-ADC9C9459688} - C:\PROGRA~1\yok\toolbar.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: 卡卡上网安全助手 - {DB9ECD4F-FB8F-4311-B3CE-90B976C2707C} - C:\WINDOWS\system32\KakaTool.dll
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [PHIME2002ASync] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - HKLM\..\Run: [PHIME2002A] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /IMEName
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [RavTask] "E:\瑞星\Rising\Rav\RavTask.exe" -system
O4 - HKLM\..\Run: [RfwMain] "E:\瑞星\Rising\Rfw\rfwmain.exe" -Startup
O4 - HKLM\..\Run: [runeip] E:\瑞星\runiep.exe
O4 - HKLM\..\Run: [PCSuiteTrayApplication] F:\555\NOKIAP~1\LAUNCH~1.EXE -startup
O4 - HKLM\..\Run: [jfproc] F:\新建文件夹\ppfilm\jfCacheMgr.exe
O4 - HKLM\..\RunOnce: [RavStub] "E:\瑞星\Rising\Rav\ravstub.exe" /RUNONCE
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Startup: QQ游戏启动加速程序.lnk = D:\QQGame\Accel.exe
O4 - Startup: 珊瑚虫.lnk = D:\qq\CoralQQ.exe
O8 - Extra context menu item: 上传到QQ网络硬盘 - C:\Program Files\Tencent\QQ\AddToNetDisk.htm
O8 - Extra context menu item: 使用Web迅雷下载 - D:\迅雷\GetUrl.htm
O8 - Extra context menu item: 使用Web迅雷下载全部链接 - D:\迅雷\GetAllUrl.htm
O8 - Extra context menu item: 使用影音传送带下载 - C:\Program Files\Xi\NetTransport 2\NTAddLink.html
O8 - Extra context menu item: 使用影音传送带下载全部链接 - C:\Program Files\Xi\NetTransport 2\NTAddList.html
O8 - Extra context menu item: 导出到 Microsoft Office Excel(&X) - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: 添加到QQ自定义面板 - C:\Program Files\Tencent\QQ\AddPanel.htm
O8 - Extra context menu item: 添加到QQ表情 - C:\Program Files\Tencent\QQ\AddEmotion.htm
O8 - Extra context menu item: 珊瑚虫超级搜索 - C:\PROGRA~1\yok\yoksch.htm
O8 - Extra context menu item: 用QQ彩信发送该图片 - C:\Program Files\Tencent\QQ\SendMMS.htm
O9 - Extra button: (no name) - {09BA8F6D-CB54-424B-839C-C2A6C8E6B436} - (no file)
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O16 - DPF: {2354A44B-3CEB-4829-9940-545B03103538} (PowerPlr Control) - http://vod.wuxi.cn/plugin/PowerPlr.ocx
O16 - DPF: {E787FD25-8D7C-4693-AE67-9406BC6E22DF} (PasswordEditCtrl Class) - https://www.tenpay.com/download/qqedit.cab
O16 - DPF: {E847C78C-C210-4195-8799-FBF3BF89797D} (金山毒霸在线产品升级) - http://www.duba.net/cab/KOSInit.cab
O16 - DPF: {EF6205C1-3F17-4829-BCB5-1336ED89E356} (KvScanOnline Control) - http://online.jiangmin.com/KvDown.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{47A1D0DA-CA71-4BFE-8969-E2E708D9F42D}: NameServer = 202.96.128.86,202.96.128.166
O17 - HKLM\System\CCS\Services\Tcpip\..\{5AEC8AC6-04A7-40B9-8CCE-1CE1F824ED72}: NameServer = 221.228.255.1 218.2.135.1
O17 - HKLM\System\CS1\Services\Tcpip\..\{47A1D0DA-CA71-4BFE-8969-E2E708D9F42D}: NameServer = 202.96.128.86,202.96.128.166
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Rising Proxy Service (RfwProxySrv) - Beijing Rising Technology Co., Ltd. - e:\瑞星\rising\rfw\rfwproxy.exe
O23 - Service: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Co., Ltd. - e:\瑞星\rising\rfw\rfwsrv.exe
O23 - Service: Rising Process Communication Center (RsCCenter) - Beijing Rising Technology Co., Ltd. - E:\瑞星\Rising\Rav\CCenter.exe
O23 - Service: Rising RealTime Monitor (RsRavMon) - Beijing Rising Technology Co., Ltd. - E:\瑞星\Rising\Rav\Ravmond.exe
O23 - Service: ServiceLayer - Nokia. - C:\Program Files\Common Files\PCSuite\Services\ServiceLayer.exe
