Blocco di vari processi e crash di sistema

[Contello95]

Sto cercando di sistemare il portatile di un mio amico, sul quale spesso si aprivano pagine web contenenti pubblicità.
Ho subito pensato che fosse un qualche tipo di spyware, così ho installato spybot, ho fatto una scansione e ha trovato vari spyware:

• Babylon.Toolbar
• IWantThis
• DealPly
• iCrossRider

Inoltre ho eseguito una scansione antivirus con avast che non ha rilevato niente(il tutto in modalità provvisoria).
Al riavvio però la pagina continuava a comparire, così ho controllato nei programmi installati e ho trovato tuto4pc, la causa di queste finestre, l'ho rimosso e adesso non compare più nessuna finestra.
In compenso da quel momento il sistema è crashato una volta con questo errore:

stop: c000021a {Errore irreversibile di sistema}
Processo di sistema Windows Logon Process terminato in modo inatteso con stato di 0xc0000005

Inoltre all'avvio(ma non sempre) i processi explorer.exe, drwtsn32.exe e vodafone mobile broadband crashano bloccando tutto il computer(a volte basta terminare drwtsn32 dal task manager, ma a volte crasha pure quello).
A quel punto ho eseguito dal prompt il comando "sfc /scannow" per verificare se i file di sistema fossero corrotti ma non è servito a niente.

Spero che possiate aiutarmi perché non so più cosa fare e vorrei evitare di formattare tutto, se può servire posto un log di hijackthis:

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 19.20.43, on 27/06/2012
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\Intel\Wireless\Bin\EvtEng.exe
C:\Programmi\Intel\Wireless\Bin\S24EvMon.exe
C:\Programmi\AVAST Software\Avast\AvastSvc.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Acer\eManager\anbmServ.exe
C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
C:\Programmi\Arcade\PCMService.exe
C:\WINDOWS\system32\rundll32.exe
C:\Programmi\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\acer\epm\epm-dm.exe
C:\Programmi\Launch Manager\QtZgAcer.EXE
C:\Programmi\Acer\eRecovery\Monitor.exe
C:\Programmi\AVAST Software\Avast\avastUI.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Messenger\msmsgs.exe
C:\Programmi\Spybot - Search & Destroy\TeaTimer.exe
C:\Programmi\Telecom Italia\WanMiniport1st\srvany.exe
C:\Programmi\Telecom Italia\WanMiniport1st\WanMiniport1st_srv.exe
C:\Programmi\Intel\Wireless\Bin\RegSrvc.exe
C:\WINDOWS\system32\svchost.exe
C:\Documents and Settings\All Users\Documenti\AppData\PoApp\PService.exe
C:\Programmi\Spybot - Search & Destroy\SpybotSD.exe
C:\Documents and Settings\Raffaele\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Raffaele\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Raffaele\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\WINDOWS\system32\msiexec.exe
C:\Programmi\HiJackThis\Trend Micro\HiJackThis\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/
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://search.findeer.com
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 127.0.0.1
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - URLSearchHook: uTorrentBar_IT Toolbar - {4ae0c3d6-f713-4eed-bc65-25dc3ffdaac1} - C:\Programmi\uTorrentBar_IT\prxtbuTor.dll
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: uTorrentBar_IT - {4ae0c3d6-f713-4eed-bc65-25dc3ffdaac1} - C:\Programmi\uTorrentBar_IT\prxtbuTor.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: avast! WebRep - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - C:\Programmi\AVAST Software\Avast\aswWebRepIE.dll
O2 - BHO: EpsonToolBandKicker Class - {E99421FB-68DD-40F0-B4AC-B7027CAE2F1A} - C:\Programmi\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O3 - Toolbar: EPSON Web-To-Page - {EE5D279F-081B-4404-994D-C6B60AAEBA6D} - C:\Programmi\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O3 - Toolbar: uTorrentBar_IT Toolbar - {4ae0c3d6-f713-4eed-bc65-25dc3ffdaac1} - C:\Programmi\uTorrentBar_IT\prxtbuTor.dll
O3 - Toolbar: avast! WebRep - {8E5E2654-AD2D-48bf-AC2D-D17F00898D06} - C:\Programmi\AVAST Software\Avast\aswWebRepIE.dll
O4 - HKLM\..\Run: [LaunchApp] Alaunch
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [SynTPLpr] C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [PCMService] "C:\Programmi\Arcade\PCMService.exe"
O4 - HKLM\..\Run: [BluetoothAuthenticationAgent] rundll32.exe bthprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [MSPY2002] C:\WINDOWS\system32\IME\PINTLGNT\ImScInst.exe /SYNC
O4 - HKLM\..\Run: [PHIME2002ASync] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - HKLM\..\Run: [PHIME2002A] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /IMEName
O4 - HKLM\..\Run: [ATIPTA] C:\Programmi\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [EPM-DM] c:\acer\epm\epm-dm.exe
O4 - HKLM\..\Run: [ePowerManagement] C:\Acer\ePM\ePM.exe boot
O4 - HKLM\..\Run: [LManager] C:\Programmi\Launch Manager\QtZgAcer.EXE
O4 - HKLM\..\Run: [eRecoveryService] C:\Programmi\Acer\eRecovery\Monitor.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programmi\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [MobileBroadband] C:\Programmi\Vodafone\Vodafone Mobile Broadband\Bin\MobileBroadband.exe /silent
O4 - HKLM\..\Run: [PosService] C:\Documents and Settings\All Users\Documenti\AppData\PoApp\PLauncher.exe
O4 - HKLM\..\Run: [UserFaultCheck] %systemroot%\system32\dumprep 0 -u
O4 - HKLM\..\Run: [avast] "C:\Programmi\AVAST Software\Avast\avastUI.exe" /nogui
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Programmi\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [EPSON Stylus DX4400 Series] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_FATICAE.EXE /FU "C:\WINDOWS\TEMP\E_S92.tmp" /EF "HKCU"
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Programmi\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO DI RETE')
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')
O4 - Global Startup: OfferBox.lnk = C:\Programmi\OfferBox\OfferBox.exe
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~3\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O17 - HKLM\System\CCS\Services\Tcpip\..\{61D48A5C-C208-4306-93DB-B1CBAAEF28B6}: NameServer = 176.31.229.24,176.31.229.25
O17 - HKLM\System\CCS\Services\Tcpip\..\{7DFFA5A0-BF24-49B5-A00D-2075DD3EAF31}: NameServer = 176.31.229.24,176.31.229.25
O17 - HKLM\System\CCS\Services\Tcpip\..\{B5B4D640-F48D-4AED-B036-DF661BAA3C01}: NameServer = 176.31.229.24,176.31.229.25
O17 - HKLM\System\CCS\Services\Tcpip\..\{F9D3536C-3E52-40CF-8A7E-6A930C099379}: NameServer = 176.31.229.24,176.31.229.25
O22 - SharedTaskScheduler: Precaricatore Browseui - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Daemon di cache delle categorie di componenti - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dll
O23 - Service: Notebook Manager Service (anbmService) - OSA Technologies Inc. - C:\Acer\eManager\anbmServ.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: avast! Antivirus - AVAST Software - C:\Programmi\AVAST Software\Avast\AvastSvc.exe
O23 - Service: EvtEng - Intel Corporation - C:\Programmi\Intel\Wireless\Bin\EvtEng.exe
O23 - Service: Servizio di Google Update (gupdate) (gupdate) - Google Inc. - C:\Programmi\Google\Update\GoogleUpdate.exe
O23 - Service: Servizio Google Update (gupdatem) (gupdatem) - Google Inc. - C:\Programmi\Google\Update\GoogleUpdate.exe
O23 - Service: Network WanMiniport First Position - Unknown owner - C:\Programmi\Telecom Italia\WanMiniport1st\srvany.exe
O23 - Service: RegSrvc - Intel Corporation - C:\Programmi\Intel\Wireless\Bin\RegSrvc.exe
O23 - Service: Remote Packet Capture Protocol v.0 (experimental) (rpcapd) - Unknown owner - C:\Programmi\WinPcap\rpcapd.exe
O23 - Service: Spectrum24 Event Monitor (S24EventMonitor) - Intel Corporation - C:\Programmi\Intel\Wireless\Bin\S24EvMon.exe
O23 - Service: Servizio Vodafone Mobile Broadband (VmbService) - Vodafone - C:\Programmi\Vodafone\Vodafone Mobile Broadband\Bin\VmbService.exe

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