[Resolvido] Vírus difícil de remover (.tmp)

Boa tarde equipe GdH.
Bom, não sei exatamente quando esse vírus infectou minha máquina, mas tentei de várias maneiras eliminar o mesmo e não obtive sucesso.
peço ajuda a vocês, pois formatei o PC e o vírus persistiu, ele xegou até a fazer o DEP bloquear o userini.exe e o taskmgr.exe, que foi um tanto difícil de eu conseguir inicializar meu PC.

Aqui vai o log do HiJackThis.

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 12:53:55, on 29/7/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.20627)
Boot mode: Normal

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
C:\Arquivos de programas\Alwil Software\Avast4\aswUpdSv.exe
C:\Arquivos de programas\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\servises.exe
C:\WINDOWS\system32\servises.exe
C:\WINDOWS\system32\servises.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Arquivos de programas\RALINK\Common\RaUI.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Arquivos de programas\Alwil Software\Avast4\ashMaiSv.exe
C:\Arquivos de programas\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\system32\wbem\wmiprvse.exe
C:\WINDOWS\System32\alg.exe
C:\WINDOWS\system32\wscntfy.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Arquivos de programas\Mozilla Firefox\firefox.exe
C:\WINDOWS\System32\svchost.exe
C:\Documents and Settings\Administrador\Desktop\HiJackThis.exe
C:\WINDOWS\system32\wbem\wmiprvse.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
O2 - BHO: Facilitador de Leitor de Link Adobe PDF - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Arquivos de programas\Arquivos comuns\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {6EF05952-B48D-4944-AA91-57A6A1A48EF8} - C:\Arquivos de programas\Puxa Rápido\IEBHO.DLL
O2 - BHO: MJCore - {D88E1558-7C2D-407A-953A-C044F5607CEA} - C:\Arquivos de programas\Jcore\Jcore2.dll
O3 - Toolbar: DAEMON Tools Toolbar - {32099AAC-C132-4136-9E9A-4E364A424E17} - C:\Arquivos de programas\DAEMON Tools Toolbar\DTToolbar.dll
O4 - HKLM\..\Run: [19502] C:\WINDOWS\system32\15.tmp.exe
O4 - HKLM\..\Run: [Regedit32] C:\WINDOWS\system32\regedit.exe
O4 - HKLM\..\Run: [reader_s] C:\WINDOWS\System32\reader_s.exe
O4 - HKLM\..\Run: [servises] C:\WINDOWS\system32\servises.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKCU\..\Run: [reader_s] C:\Documents and Settings\Administrador\reader_s.exe
O4 - HKCU\..\Run: [servises] C:\WINDOWS\system32\servises.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKLM\..\Policies\Explorer\Run: [servises] C:\WINDOWS\system32\servises.exe
O4 - HKCU\..\Policies\Explorer\Run: [servises] C:\WINDOWS\system32\servises.exe
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] C:\Arquivos de programas\Windows Sidebar\sidebar.exe /autoRun (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\RunOnce: [nltide_2] regsvr32 /s /n /i:U shell32 (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] C:\Arquivos de programas\Windows Sidebar\sidebar.exe /autoRun (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-20\..\RunOnce: [nltide_2] regsvr32 /s /n /i:U shell32 (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [reader_s] C:\Documents and Settings\Administrador\reader_s.exe (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\RunOnce: [nltide_2] regsvr32 /s /n /i:U shell32 (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\Policies\Explorer\Run: [servises] C:\WINDOWS\system32\servises.exe (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [reader_s] C:\Documents and Settings\Administrador\reader_s.exe (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunOnce: [nltide_2] regsvr32 /s /n /i:U shell32 (User 'Default user')
O4 - HKUS\.DEFAULT\..\Policies\Explorer\Run: [servises] C:\WINDOWS\system32\servises.exe (User 'Default user')
O4 - Global Startup: Microsoft Office.lnk = C:\Arquivos de programas\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: Ralink Wireless Utility.lnk = C:\Arquivos de programas\RALINK\Common\RaUI.exe
O8 - Extra context menu item: Add to Google Photos Screensa&ver - res://C:\WINDOWS\system32\GPhotos.scr/200
O14 - IERESET.INF: SEARCH_PAGE_URL=&http://home.microsoft.com/intl/br/access/allinone.asp
O17 - HKLM\System\CCS\Services\Tcpip\..\{B31C77C7-AB29-413D-BC66-A42074A75C77}: NameServer = 189.44.209.252
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\ARQUIV~1\ARQUIV~1\Skype\SKYPE4~1.DLL
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Arquivos de programas\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Arquivos de programas\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Arquivos de programas\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Arquivos de programas\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: FCI - Unknown owner - C:\WINDOWS\system32\svchost.exe:ext.exe (file missing)
O23 - Service: Google Updater Service (gusvc) - Google - C:\Arquivos de programas\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Microsoft security update service (msupdate) - Unknown owner - c:\windows\system32\mssrv32.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe

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End of file - 6179 bytes

Dêsde já, agradeço.