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:\Arquivos de programas\Ahead\InCD\InCDsrv.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\sttray.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Arquivos de programas\Ahead\InCD\InCD.exe
C:\Arquivos de programas\iTunes\iTunesHelper.exe
C:\Arquivos de programas\QuickTime\qttask.exe
C:\Arquivos de programas\messenger.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Arquivos de programas\MSN Messenger\MsnMsgr.Exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\system32\STacSV.exe
C:\Arquivos de programas\Messenger\msmsgs.exe
C:\WINDOWS\system32\svchost.exe
C:\Documents and Settings\All Users\Menu Iniciar\Programas\Inicializar\messenger.exe
C:\Arquivos de programas\iPod\bin\iPodService.exe
C:\Arquivos de programas\MSN Messenger\usnsvc.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Documents and Settings\RAFAEL\Desktop\Downloads Raspa\HijackThis.exe
C:\Arquivos de programas\Internet Explorer\iexplore.exe
C:\Arquivos de programas\Arquivos comuns\Microsoft Shared\Windows Live\WLLoginProxy.exe
C:\WINDOWS\system32\taskmgr.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = &http://home.microsof...ss/allinone.asp
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.orkut.com/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = :
R3 - URLSearchHook: Barra de Ferramentas do Yahoo! com bloqueador de pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Arquivos de programas\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Arquivos de programas\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {140BD8E3-C167-11D4-B4A3-080000180323} - (no file)
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Arquivos de programas\Arquivos comuns\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: QUICKfind BHO Object - {C08DF07A-3E49-4E25-9AB0-D3882835F153} - C:\ARQUIV~1\TEXTware\QUICKF~1\PlugIns\IEHelp.dll
O3 - Toolbar: Barra de Ferramentas do Yahoo! com bloqueador de pop-up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Arquivos de programas\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [SigmatelSysTrayApp] sttray.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [InCD] C:\Arquivos de programas\Ahead\InCD\InCD.exe
O4 - HKLM\..\Run: [iTunesHelper] "C:\Arquivos de programas\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Arquivos de programas\QuickTime\qttask.exe" -atboottime
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Arquivos de programas\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [MSMSGS] "C:\Arquivos de programas\Messenger\msmsgs.exe" /background
O4 - Global Startup: messenger.exe
O8 - Extra context menu item: E&xportar para o Microsoft Excel - res://C:\ARQUIV~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Pesquisar - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\ARQUIV~1\MICROS~2\OFFICE11\REFIEBAR.DLL
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
O12 - Plugin for .spop: C:\Arquivos de programas\Internet Explorer\Plugins\NPDocBox.dll
O14 - IERESET.INF: SEARCH_PAGE_URL=&http://home.microsof...ss/allinone.asp
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft....k/?linkid=39204
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Arquivos de programas\Yahoo!\Common\yinsthelper.dll
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\ARQUIV~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\ARQUIV~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: textwareilluminatorbase - {CE5CD329-1650-414A-8DB0-4CBF72FAED87} - C:\WINDOWS\system32\textwareilluminatorbaseProtocol.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Arquivos de programas\Arquivos comuns\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: InCD Helper (InCDsrv) - Nero AG - C:\Arquivos de programas\Ahead\InCD\InCDsrv.exe
O23 - Service: InCD Helper (read only) (InCDsrvR) - Nero AG - C:\Arquivos de programas\Ahead\InCD\InCDsrv.exe
O23 - Service: iPodService - Apple Computer, Inc. - C:\Arquivos de programas\iPod\bin\iPodService.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: SigmaTel Audio Service (STacSV) - SigmaTel, Inc. - C:\WINDOWS\system32\STacSV.exe
Thanks a lot and I´m waiting for help.