请帮助分析一下下那个程序是病毒，该如何处理？
瑞星查出的病毒名：Backdoor.Gpigeon.ugu
Backdoor.Gpigeon.ugu 清除成功 2006-01-05 07:34 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-05 09:01 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-05 11:57 屏保扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-05 14:41 屏保扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-05 19:59 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-06 09:03 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-06 12:21 屏保扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-07 09:41 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-07 14:20 屏保扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-07 16:49 屏保扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-09 10:14 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-09 10:24 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-09 10:49 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-09 11:40 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-09 14:08 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-09 14:39 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-09 16:34 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-09 17:14 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-09 19:51 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-09 20:56 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-09 21:18 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-09 21:28 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-10 13:58 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-10 15:10 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-10 15:59 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-11 08:46 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
Backdoor.Gpigeon.ugu 清除成功 2006-01-11 14:29 手动扫描 IEXPLORE.EXE>>C:\Program Files\Internet Explorer\IEXPLORE.EXE 本机
扫描日志如下：
Logfile of HijackThis v1.99.1
Scan saved at 10:13:41, on 2006-1-10
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\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
D:\程序\新建文件夹\RAV\CCENTER.EXE
D:\程序\新建文件夹\Rav\Ravmond.exe
c:\program files\rising\rfw\rfwsrv.exe
C:\WINDOWS\system32\spoolsv.exe
D:\程序\新建文件夹\Rav\RavStub.exe
C:\WINDOWS\System32\alg.exe
C:\WINDOWS\Explorer.EXE
c:\program files\rising\rfw\RfwMain.exe
D:\程序\新建文件夹\Rav\RavTask.exe
D:\程序\新建文件夹\Rav\Ravmon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\Rundll32.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\zdff\My Documents\新建文件夹\HijackThis\HijackThis.exe
R3 - URLSearchHook: (no name) - {BB936323-19FA-4521-BA29-ECA6A121BC78} - (no file)
O2 - BHO: Yahoo!Photo - {33BBE430-0E42-4f12-B075-8D21ACB10DCB} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yphtb.dll
O2 - BHO: Anti Fish - {38928D50-8A48-44C2-945F-D2F23F771410} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yangling.dll
O2 - BHO: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yasbar.dll
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
O2 - BHO: BandIE Class - {77FEF28E-EB96-44FF-B511-3185DEA48697} - C:\PROGRA~1\baidu\bar\baidubar.dll
O2 - BHO: IeCatch2 Class - {A5366673-E8CA-11D3-9CD9-0090271D075B} - C:\PROGRA~1\FLASHGET\jccatch.dll
O3 - Toolbar: 百度超级搜霸 - {B580CF65-E151-49C3-B73F-70B13FCA8E86} - C:\PROGRA~1\baidu\bar\baidubar.dll
O3 - Toolbar: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yasbar.dll
O4 - HKLM\..\Run: [RavTask] "D:\程序\新建文件夹\Rav\RavTask.exe" -system
O4 - HKLM\..\Run: [helper.dll] rem C:\WINDOWS\system32\rundll32.exe C:\PROGRA~1\3721\helper.dll,Rundll32
O4 - HKLM\..\Run: [CnsMin] rem Rundll32.exe C:\WINDOWS\downlo~1\CnsMin.dll,Rundll32
O4 - HKLM\..\Run: [RfwMain] rem "C:\Program Files\Rising\Rfw\rfwmain.exe" -Startup
O4 - HKLM\..\Run: [Update] C:\Program Files\Common Files\UPDATE\Update.exe
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [res] C:\WINDOWS\system32\res.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O8 - Extra context menu item: 使用网际快车下载 - C:\PROGRA~1\FLASHGET\jc_link.htm
O8 - Extra context menu item: 使用网际快车下载全部链接 - C:\PROGRA~1\FLASHGET\jc_all.htm
O8 - Extra context menu item: 导出到 Microsoft Excel(&x) - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: 手机短信 - {00000000-0000-0001-0001-596BAEDD1289} - http://sms.3721.com/ie/index.htm (file missing)
O9 - Extra button: 浩方对战平台 - {0A155D3C-68E2-4215-A47A-E800A446447A} - E:\旧版\浩方对战平台\GameClient.exe
O9 - Extra button: Yahoo 1G电邮 - {507F9113-CD77-4866-BA92-0E86DA3D0B97} - http://cn.mail.yahoo.com/promo/rd1 (file missing)
O9 - Extra button: 寻宝乐趣多 - {59BC54A2-56B3-44a0-93E5-432D58746E26} - http://adtaobao.allyes.com/main/adfclick?db=adtaobao&bid=138,140,18&cid=816,8,1&sid=5042&show=ignore&url=?allyesPara=816 (file missing)
O9 - Extra button: 雅虎助手 - {5D73EE86-05F1-49ed-B850-E423120EC338} - http://cn.zs.yahoo.com/?source=Cns (file missing)
O9 - Extra button: (no name) - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O9 - Extra 'Tools' menuitem: QQ炫彩工具条设置 - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O9 - Extra button: 情景聊天 - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - http://cn.rd.yahoo.com/home/messenger/bjk/clientbtn/?http://cn.messenger.yahoo.com/ (file missing)
O9 - Extra button: (no name) - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://assistant.3721.com/security1.htm?fb=Cns (file missing)
O9 - Extra 'Tools' menuitem: 修复浏览器 - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://assistant.3721.com/security1.htm?fb=Cns (file missing)
O9 - Extra button: (no name) - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://assistant.3721.com/clean1.htm?fb=Cns (file missing)
O9 - Extra 'Tools' menuitem: 清理上网记录 - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://assistant.3721.com/clean1.htm?fb=Cns (file missing)
O11 - Options group: [!CNS] 网络实名
O16 - DPF: _{6414512B-B978-451D-A0D8-FCFDF33E833C} - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1132384188971
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxsrvc.dll
O23 - Service: Error Reporting Services - Unknown owner - C:\WINDOWS\HTTP SSL.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. - D:\程序\新建文件夹\RAV\CCENTER.EXE
O23 - Service: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - D:\程序\新建文件夹\Rav\Ravmond.exe
