Log do HijackThis para analise [Tit. edit.]

galera ontem eu tava usando meu computador normalmente.
hoje qndo eu fui usa a internet (wireles manager 5 da claro) nao tava conectando fikava tentando axar a radio mas n encontrava ai em qnto ela procurava a radio meu pc todo travava n podia abrir Meu Computador n dava pra abri nd eu fiz 1 scan de tudo com o avira e ele axo alguns virus eu removi normalmente 1 q ele encontrou estava no modem do wireles entao eu coloquei em quarentena ai eu aproveitei esse problema e formatei o pc mas mesmo formatado ele continua assim oq eu faço galera?
sera q o virus esta no modem sony ericsson MD300?
ak esta o log do hijackthis

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 21:41:17, on 5/7/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal

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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Arquivos de programas\Avira\AntiVir Desktop\sched.exe
C:\Arquivos de programas\Avira\AntiVir Desktop\avguard.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\igfxtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxpers.exe
C:\Arquivos de programas\Avira\AntiVir Desktop\avgnt.exe
C:\WINDOWS\system32\igfxsrvc.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Arquivos de programas\Sony Ericsson\Sony Ericsson Wireless Manager 5\WirelessManager.exe
C:\Arquivos de programas\Mozilla Firefox\firefox.exe
C:\Documents and Settings\casa\Meus documentos\Downloads\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = &http://home.microsoft.com/intl/br/access/allinone.asp
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [Persistence] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [avgnt] "C:\Arquivos de programas\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Arquivos de programas\Messenger\msmsgs.exe" /background
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Arquivos de programas\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Arquivos de programas\Messenger\msmsgs.exe
O14 - IERESET.INF: SEARCH_PAGE_URL=&http://home.microsoft.com/intl/br/access/allinone.asp
O23 - Service: Avira AntiVir Scheduler (AntiVirSchedulerService) - Avira GmbH - C:\Arquivos de programas\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira AntiVir Guard (AntiVirService) - Avira GmbH - C:\Arquivos de programas\Avira\AntiVir Desktop\avguard.exe

--
End of file - 2605 bytes