Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 13.32.10, on 25/12/2012
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\Spybot - Search & Destroy 2\SDUpdate.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2012\avp.exe
C:\Programmi\Spybot - Search & Destroy 2\SDTray.exe
C:\Programmi\Nokia\Nokia PC Suite 7\PCSuite.exe
C:\Programmi\Windows Live\Messenger\msnmsgr.exe
C:\Programmi\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2012\avp.exe
C:\Programmi\Java\jre6\bin\jqs.exe
C:\Programmi\File comuni\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Programmi\Spybot - Search & Destroy 2\SDFSSvc.exe
C:\Programmi\Analog Devices\SoundMAX\SMAgent.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\Spybot - Search & Destroy 2\SDUpdSvc.exe
C:\Programmi\PC Connectivity Solution\ServiceLayer.exe
C:\WINDOWS\system32\wscntfy.exe
C:\Programmi\PC Connectivity Solution\Transports\NclUSBSrv.exe
C:\Programmi\PC Connectivity Solution\Transports\NclRSSrv.exe
C:\Programmi\Mozilla Firefox\firefox.exe
C:\WINDOWS\system32\msiexec.exe
C:\Programmi\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 =
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - URLSearchHook: (no name) - {CA3EB689-8F09-4026-AA10-B9534C691CE0} - (no file)
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\Programmi\Spybot - Search & Destroy 2\SDHelper.dll
O2 - BHO: IEVkbdBHO - {59273AB4-E7D3-40F9-A1A8-6FA9CCA1862C} - C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2012\ievkbd.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre6\bin\ssv.dll
O2 - BHO: Guida per l'accesso a Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Programmi\File comuni\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - C:\Programmi\Google\Google Toolbar\GoogleToolbar_32.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Programmi\Google\GoogleToolbarNotifier\5.7.7529.1424\swg.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre6\bin\jp2ssv.dll
O2 - BHO: link filter bho - {E33CF602-D945-461A-83F0-819F76A199F8} - C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2012\klwtbbho.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Programmi\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O2 - BHO: TBSB09850 - {FCBCCB87-9224-4B8D-B117-F56D924BEB18} - (no file)
O3 - Toolbar: (no name) - {37D48D9C-3F7E-412F-B5BF-611BE7CCFCA1} - (no file)
O3 - Toolbar: Google Toolbar - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - C:\Programmi\Google\Google Toolbar\GoogleToolbar_32.dll
O4 - HKLM\..\Run: [NSU_agent] "C:\Programmi\Nokia\Nokia Software Updater\nsu3ui_agent.exe"
O4 - HKLM\..\Run: [AVP] "C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2012\avp.exe"
O4 - HKLM\..\Run: [SDTray] "C:\Programmi\Spybot - Search & Destroy 2\SDTray.exe"
O4 - HKLM\..\RunOnce: [Malwarebytes Anti-Malware] C:\Programmi\Malwarebytes' Anti-Malware\mbamgui.exe /install /silent
O4 - HKCU\..\Run: [PC Suite Tray] "C:\Programmi\Nokia\Nokia PC Suite 7\PCSuite.exe" -onlytray
O4 - HKCU\..\Run: [msnmsgr] "C:\Programmi\Windows Live\Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [swg] "C:\Programmi\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.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')
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: &Tastiera Virtuale - {4248FE82-7FCB-46AC-B270-339F08212110} - C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2012\ievkbd.dll
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: C&ontrollo URL - {CCF151D8-D089-449F-A5A4-D9909053F20F} - C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2012\klwtbbho.dll
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Programmi\Spybot - Search & Destroy 2\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search && Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Programmi\Spybot - Search & Destroy 2\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\..\{5C4618D3-AA69-4DF4-B4FE-9AAA2A9B36B4}: NameServer = 193.70.152.15 212.52.97.15
O17 - HKLM\System\CCS\Services\Tcpip\..\{F17B79CE-3ED4-4F20-A720-A20095BC79B7}: NameServer = 176.31.229.24,176.31.229.25
O20 - AppInit_DLLs: c:\docume~1\alluse~1\datiap~1\browse~1\23765~1.24\{16cdf~1\browse~1.dll
O20 - Winlogon Notify: SDWinLogon - SDWinLogon.dll (file missing)
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: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: Servizio Kaspersky Anti-Virus (AVP) - Kaspersky Lab ZAO - C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2012\avp.exe
O23 - Service: Servizio 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: Google Software Updater (gusvc) - Google - C:\Programmi\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Programmi\Java\jre6\bin\jqs.exe
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Programmi\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service: NMIndexingService - Nero AG - C:\Programmi\File comuni\Ahead\Lib\NMIndexingService.exe
O23 - Service: Spybot-S&D 2 Scanner Service (SDScannerService) - Safer-Networking Ltd. - C:\Programmi\Spybot - Search & Destroy 2\SDFSSvc.exe
O23 - Service: Spybot-S&D 2 Updating Service (SDUpdateService) - Safer-Networking Ltd. - C:\Programmi\Spybot - Search & Destroy 2\SDUpdSvc.exe
O23 - Service: Spybot-S&D 2 Security Center Service (SDWSCService) - Safer-Networking Ltd. - C:\Programmi\Spybot - Search & Destroy 2\SDWSCSvc.exe
O23 - Service: ServiceLayer - Nokia - C:\Programmi\PC Connectivity Solution\ServiceLayer.exe
O23 - Service: Serv Updater (ServUpdater) - ServiceUpd - C:\Documents and Settings\UTENTE\Impostazioni locali\Dati applicazioni\ServUpdater\ServiceUpd.exe
O23 - Service: Software Upd (SoftwareUpd) - SoftwareUpdService - C:\Documents and Settings\UTENTE\Impostazioni locali\Dati applicazioni\SoftwareUpdater\SoftwareUpdService.exe
O23 - Service: SoundMAX Agent Service (SoundMAX Agent Service (default)) - Analog Devices, Inc. - C:\Programmi\Analog Devices\SoundMAX\SMAgent.exe

--
End of file - 9091 bytes

Non hai detto che problemi riscontri, presumo rallentamenti, pagine pubblicitarie e forse dirottamenti verso siti non richiesti.

Chiudi tutti i programmi e disconnesso lanci HJT e clicca sul secondo pulsante: Do a system scan only poi metti la spunta alle voci che ti indico e alla fine clic su Fix checked:

R3 - URLSearchHook: (no name) - {CA3EB689-8F09-4026-AA10-B9534C691CE0} - (no file)
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: TBSB09850 - {FCBCCB87-9224-4B8D-B117-F56D924BEB18} - (no file)
O3 - Toolbar: (no name) - {37D48D9C-3F7E-412F-B5BF-611BE7CCFCA1} - (no file)
O4 - HKLM\..\Run: [NSU_agent] "C:\Programmi\Nokia\Nokia Software Updater\nsu3ui_agent.exe"
O17 - HKLM\System\CCS\Services\Tcpip\..\{F17B79CE-3ED4-4F20-A720-A20095BC79B7}: NameServer = 176.31.229.24,176.31.229.25
O20 - Winlogon Notify: SDWinLogon - SDWinLogon.dll (file missing)

Poi ci sono dei serfizi da disattivare: Serv Updater e Software Upd
Fai così: Pannello di controllo - Strumenti amministrazione - Servizi scorri le voci e cerca Serv Updater e Software Upd doppio clic sulle voci, se ci sono, e modifica il suo Tipo di avvio in Disabilitato.
Controlla anche se c'è Pos Service se lo trovi disabilità anche pui.

Scarica Adwcleaner sul desktop:
http://general-changelog-team.fr/en/downloads/finish/20-outils-de-xplode/2-adwcleaner
Avvialo e clicca sul pulsante "Elimina".
Conferma con OK le varie finestre che ti compariranno.
Il pc si riavvierà, e uscirà il log con le eliminazioni.
Postalo qui.

Fai sapere come va il pc. Ciao