我电脑装的是瑞星正版杀毒软件和天网防火墙，两个版本都升级为最新版，但每次启动后，瑞星扫描内存和引导区就报告查到木马：

详细内容IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE ->BackDoor.GPigeon.tar

瑞星提示已经清除，但下次重启时，仍然提示有木马。

而在安全模式下，用瑞星杀毒软件进行查杀，却没有查出任何病毒。
不知怎么办~各位大哥帮帮忙。
我用HijackThis_zww汉化版V1.99.1扫描，日志如下，请各高手给指导下！！！
HijackThis_zww汉化版扫描日志 V1.99.1
保存于      15:40:25, 日期 2005-11-27
操作系统：  Windows XP SP2 (WinNT 5.01.2600)
浏览器：    Internet Explorer v6.00 SP2 (6.00.2900.2180)

当前运行的进程：         
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
C:\WINDOWS\System32\svchost.exe
E:\PROGRAM FILES\RISING\RAV\Ravmond.exe
C:\WINDOWS\Explorer.EXE
E:\PROGRAM FILES\RISING\RAV\RavStub.exe
C:\WINDOWS\system32\spoolsv.exe
E:\Program Files\SkyNet\FireWall\PFW.exe
E:\PROGRA~1\RISING\RAV\RAVMON.EXE
E:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\nvsvc32.exe
E:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
C:\WINDOWS\system32\svchost.exe
E:\Program Files\Tencent\QQ\QQ.exe
D:\Program Files\金山快译 2005\FastAIT.exe
C:\Documents and Settings\user\桌面\2535952005811174944\HijackThis1991zww.exe

F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\userinit.exe
O1 - Hosts: 218.30.103.84 www.hfinverter.com
O1 - Hosts: 61.143.210.48 www.jujumao.com
O1 - Hosts: 61.143.210.48 www.jujumao.net
O1 - Hosts: 207.46.19.30 www.microsoft.com
O1 - Hosts: 210.51.170.68 www.520222.com
O1 - Hosts: 219.136.252.93 www.kktt8.com
O1 - Hosts: 203.86.2.98 www.wnwb.com
O1 - Hosts: 221.230.31.11 www.abc173.com
O1 - Hosts: 61.152.160.220 www.itskycn.com
O1 - Hosts: 211.157.102.15 www.gasshow.com
O1 - Hosts: 61.155.39.152 xy2.yezizhu.com
O1 - Hosts: 61.163.238.60 www.ayxz.com
O1 - Hosts: 219.239.94.78 www.softreg.com.cn
O1 - Hosts: 210.51.187.84 www.gb50028.com
O1 - Hosts: 207.46.19.30 www.microsoft.com
O1 - Hosts: 221.130.12.53 www.onlinedown.net
O1 - Hosts: 218.30.99.190 www.qqliao.com
O1 - Hosts: 222.77.177.112 xy.17173.com
O1 - Hosts: 202.99.176.29 www.55188.net
O1 - Hosts: 218.204.251.12 www.macdcn.com
O1 - Hosts: 218.30.96.49 www.maxxon.com.cn
O1 - Hosts: 218.16.122.16 www.okbt.com
O1 - Hosts: 220.181.29.60 cntzy.go.nease.net
O1 - Hosts: 210.51.170.56 www.wopti.net
O1 - Hosts: 210.51.170.56 www.wopti.net
O1 - Hosts: 218.30.96.49 www.maxxon.com.cn
O1 - Hosts: 211.94.190.232 www.younet.com.cn
O1 - Hosts: 208.254.3.160 www.jintianhao.com
O1 - Hosts: 202.108.42.155 xy2.163.com
O1 - Hosts: 61.152.95.143 www.crazyrussian.net
O1 - Hosts: 210.51.170.68 www.520222.com
O1 - Hosts: 219.129.20.77 www.cpiao.com
O1 - Hosts: 219.148.62.114 www.eachmp3.com
O1 - Hosts: 219.136.252.93 www.kktt8.com
O1 - Hosts: 202.101.42.28 www.666d.com
O1 - Hosts: 208.254.3.160 www.jintianhao.com
O1 - Hosts: 218.30.110.190 long6666.51.net
O1 - Hosts: 61.129.74.208 www.fxj.com.cn
O1 - Hosts: 211.151.240.1 www.fengjiao.com.cn
O1 - Hosts: 61.129.88.118 www.cnyou.com
O1 - Hosts: 61.152.160.220 www.itskycn.com
O1 - Hosts: 195.235.0.21 www.ccoo.com
O1 - Hosts: 202.98.5.130 www.jl.jl.cn
O1 - Hosts: 218.83.158.88 www.week8.net
O1 - Hosts: 219.153.5.222 www.wg999.net
O1 - Hosts: 61.155.39.152 www.yezizhu.com
O1 - Hosts: 202.102.29.154 www.tianfn.com
O1 - Hosts: 211.158.10.196 www.downloadsky.com
O1 - Hosts: 61.145.113.63 www8.pconline.com.cn
O1 - Hosts: 61.236.229.249 hp.xilu.com
O1 - Hosts: 61.233.40.93 www.showji.com
O1 - Hosts: 12.170.116.68 www.chinaede.net
O1 - Hosts: 69.25.212.139 www.gzyu.com
O1 - Hosts: 207.46.19.30 www.microsoft.com
O1 - Hosts: 218.16.124.246 www.qqwo.com
O1 - Hosts: 211.91.135.136 www.hardsalon.com
O1 - Hosts: 211.154.52.18 www.htsec.com
O1 - Hosts: 210.21.118.119 www.pcgames.com.cn
O1 - Hosts: 222.187.113.46 www.05168.com
O1 - Hosts: 220.181.31.3 mapxy2.nease.net
O1 - Hosts: 219.136.252.180 xyqy.6to23.com
O1 - Hosts: 222.73.4.27 soft.winzheng.com
O1 - Hosts: 69.50.131.86 superdown.hothome.net
O1 - Hosts: 61.152.117.78 zttw.myrice.com
O1 - Hosts: 202.106.185.73 gdaguo.126.com
O1 - Hosts: 216.168.224.53 www.iduba.net
O1 - Hosts: 216.168.224.53 www.iduba.net
O1 - Hosts: 61.172.195.152 vod.89dns.com
O1 - Hosts: 202.102.249.40 www.mydrivers.com
O2 - BHO: QQBrowserHelperObject Class - {54EBD53A-9BC1-480B-966A-843A333CA162} - e:\Program Files\Tencent\QQ\QQIEHelper.dll
O2 - BHO: IeCatch2 Class - {A5366673-E8CA-11D3-9CD9-0090271D075B} - C:\PROGRA~1\FLASHGET\jccatch.dll
O3 - IE工具栏增项: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - C:\PROGRA~1\FLASHGET\fgiebar.dll
O3 - IE工具栏增项: 卡卡上网安全助手 - {DB9ECD4F-FB8F-4311-B3CE-90B976C2707C} - C:\WINDOWS\system32\KakaTool.dll
O4 - 启动项HKLM\\Run: [SKYNET Personal FireWall] E:\Program Files\SkyNet\FireWall\PFW.exe
O4 - 启动项HKLM\\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - 启动项HKLM\\Run: [RavMon] E:\PROGRA~1\RISING\RAV\RAVMON.EXE -SYSTEM
O4 - 启动项HKLM\\Run: [RavTimer] E:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
O4 - 启动项HKLM\\RunOnce: [RavStub] "E:\PROGRAM FILES\RISING\RAV\ravstub.exe" /RUNONCE
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O8 - IE右键菜单中的新增项目: 使用网际快车下载 - C:\PROGRA~1\FLASHGET\jc_link.htm
O8 - IE右键菜单中的新增项目: 使用网际快车下载全部链接 - C:\PROGRA~1\FLASHGET\jc_all.htm
O8 - IE右键菜单中的新增项目: 添加到QQ自定义面板 - E:\Program Files\Tencent\QQ\AddPanel.htm
O8 - IE右键菜单中的新增项目: 添加到QQ表情 - E:\Program Files\Tencent\QQ\AddEmotion.htm
O8 - IE右键菜单中的新增项目: 用QQ彩信发送该图片 - E:\Program Files\Tencent\QQ\SendMMS.htm
O9 - 浏览器额外的按钮: QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - e:\Program Files\Tencent\QQ\QQ.EXE
O9 - 浏览器额外的“工具”菜单项: 腾讯QQ - {c95fe080-8f5d-11d2-a20b-00aa003c157b} - e:\Program Files\Tencent\QQ\QQ.EXE
O9 - 浏览器额外的按钮: (no name) - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - e:\Program Files\Tencent\QQ\QQIEHelper.dll
O9 - 浏览器额外的“工具”菜单项: QQ炫彩工具条设置 - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - e:\Program Files\Tencent\QQ\QQIEHelper.dll
O16 - DPF: {3D8F74EE-8692-4F8F-B8D2-7522E732519E} (WebActivater Control) - http://game.qq.com/QQGame2.cab
O23 - NT 服务: WindowsF (FRundlll) - Unknown owner - C:\WINDOWS\system32\FRundlll.exe
O23 - NT 服务: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - NT 服务: Rising Process Communication Center (RsCCenter) - rising - E:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
O23 - NT 服务: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - E:\PROGRAM FILES\RISING\RAV\Ravmond.exe
O23 - NT 服务: Windows Installer Acquisition  - Unknown owner - C:\WINDOWS\windos.exe