这两天发现机子里有个病毒“Trojan.DL.Direct.aa”，开机后运行瑞星提示病毒已删除，但每次启动计算机运行瑞星后又会发现该病毒，从瑞星光盘启动后杀，提示删除成功，再重启计算机该病毒依然存在，该怎么办？哪位大虾99我啊？
这是我的日志，请大虾帮忙分析哈：
Logfile of HijackThis v1.99.1
Scan saved at 13:03:27, on 2006-8-20
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
C:\Program Files\Rising\Rav\CCenter.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Rising\Rav\Ravmond.exe
c:\program files\rising\rfw\rfwsrv.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Rising\Rav\RavStub.exe
C:\WINDOWS\VM303_STI.EXE
C:\Program Files\Creative\SB Live! 24-bit\Surround Mixer\CTSysVol.exe
C:\WINDOWS\system32\CTsvcCDA.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\MsPMSPSv.exe
C:\Program Files\Rising\Rav\RavTask.exe
C:\Program Files\Rising\Rav\Ravmon.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Rising\Rfw\RfwMain.exe
C:\Program Files\Rising\Rav\Rav.exe
C:\Program Files\Internet Explorer\iexplore.exe
E:\下载文件\杂档\ha_hijackthis_1991\HijackThis.exe
O2 - BHO: CdnForIE Class - {5C3853CF-C7E0-4946-B3FA-1ABDB6F48108} - C:\PROGRA~1\CNNIC\Cdn\cdnforie.dll
O2 - BHO: ThunderBHO - {889D2FEB-5411-4565-8998-1DD2C5261283} - d:\Program Files\Thunder Network\Thunder\ComDlls\XunLeiBHO_002.dll
O3 - Toolbar: 卡卡上网安全助手 - {DB9ECD4F-FB8F-4311-B3CE-90B976C2707C} - C:\WINDOWS\system32\KakaTool.dll
O4 - HKLM\..\Run: [BigDog303] C:\WINDOWS\VM303_STI.EXE VIMICRO USB PC Camera (ZC0301PLH)
O4 - HKLM\..\Run: [CTSysVol] C:\Program Files\Creative\SB Live! 24-bit\Surround Mixer\CTSysVol.exe /r
O4 - HKLM\..\Run: [UpdReg] C:\WINDOWS\UpdReg.EXE
O4 - HKLM\..\Run: [RavTask] "C:\Program Files\Rising\Rav\RavTask.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 - HKLM\..\Run: [HF_GameClient] E:\cs 1.55\浩方对战平台\gameclient.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O8 - Extra context menu item: &使用迅雷下载 - d:\Program Files\Thunder Network\Thunder\Program\GetUrl.htm
O8 - Extra context menu item: &使用迅雷下载全部链接 - d:\Program Files\Thunder Network\Thunder\Program\GetAllUrl.htm
O8 - Extra context menu item: 上传到QQ网络硬盘 - D:\Program Files\QQ2005\AddToNetDisk.htm
O8 - Extra context menu item: 添加到QQ自定义面板 - D:\Program Files\QQ2005\AddPanel.htm
O8 - Extra context menu item: 添加到QQ表情 - D:\Program Files\QQ2005\AddEmotion.htm
O8 - Extra context menu item: 用QQ彩信发送该图片 - D:\Program Files\QQ2005\SendMMS.htm
O9 - Extra button: 启动迅雷 - {0062C9BD-B349-40DE-91A0-755F37ACD559} - d:\Program Files\Thunder Network\Thunder\Thunder.exe
O9 - Extra 'Tools' menuitem: 启动迅雷 - {0062C9BD-B349-40DE-91A0-755F37ACD559} - d:\Program Files\Thunder Network\Thunder\Thunder.exe
O9 - Extra button: 浩方对战平台 - {0A155D3C-68E2-4215-A47A-E800A446447A} - E:\cs 1.55\浩方对战平台\gameclient.exe
O9 - Extra button: 中文上网 - {5C3853CF-C7E0-4946-B3FA-1ABDB6F48108} - C:\PROGRA~1\CNNIC\Cdn\cdnforie.dll
O9 - Extra 'Tools' menuitem: 中文上网 - {5C3853CF-C7E0-4946-B3FA-1ABDB6F48108} - C:\PROGRA~1\CNNIC\Cdn\cdnforie.dll
O11 - Options group: [CDNCLIENT] 中文上网
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTsvcCDA.exe
O23 - Service: Rising Proxy Service (RfwProxySrv) - Beijing Rising Technology Co., Ltd. - c:\program files\rising\rfw\rfwproxy.exe
O23 - Service: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Co., Ltd. - c:\program files\rising\rfw\rfwsrv.exe
O23 - Service: Rising Process Communication Center (RsCCenter) - Beijing Rising Technology Co., Ltd. - C:\Program Files\Rising\Rav\CCenter.exe
O23 - Service: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - C:\Program Files\Rising\Rav\Ravmond.exe
