ciao,
ho il pc che è lentissimo, mi potete aiutare?

Logfile of Trend Micro HijackThis v2.0.5
Scan saved at 23.27.13, on 16/06/2013
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
CHROME: 27.0.1453.110

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:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\Programmi\File comuni\Apple\Mobile Device Support\AppleMobileDeviceService.exe
C:\Programmi\Canon\IJPLM\IJPLMSVC.EXE
C:\Programmi\Java\jre7\bin\jqs.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\File comuni\Microsoft Shared\VS7DEBUG\mdm.exe
C:\Programmi\CDBurnerXP\NMSAccessU.exe
C:\Programmi\Google\Update\GoogleUpdate.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\RTHDCPL.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Fastweb\PrintAndFax\FaxMonitor.exe
C:\WINDOWS\system32\wbem\wmiapsrv.exe
C:\Programmi\Fastweb\PrintAndFax\MessageCapture.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Administrator\Desktop\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://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: Canon Easy-WebPrint EX BHO - {3785D0AD-BFFF-47F6-BF5B-A587C162FED9} - C:\Programmi\Canon\Easy-WebPrint EX\ewpexbho.dll
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\PROGRA~1\MICROS~2\Office12\GRA8E1~1.DLL
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre7\bin\ssv.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre7\bin\jp2ssv.dll
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [PosService] C:\Documents and Settings\All Users\Documenti\AppData\PoApp\PLauncher.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [ccleaner] "C:\Programmi\CCleaner\CCleaner.exe" /AUTO
O4 - Global Startup: Post-it® Software Notes Lite.lnk = C:\Programmi\3M\PSNLite\PsnLite.exe
O4 - Global Startup: PrintAndFax.lnk = C:\Programmi\Fastweb\PrintAndFax\FaxMonitor.exe
O8 - Extra context menu item: Add to Google Photos Screensa&ver - res://C:\WINDOWS\system32\GPhotos.scr/200
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Free YouTube Download - C:\Documents and Settings\Administrator\Dati applicazioni\DVDVideoSoftIEHelpers\freeytvdownloader.htm
O9 - Extra button: Invia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: I&nvia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.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
O10 - Broken Internet access because of LSP provider 'c:\programmi\bonjour\mdnsnsp.dll' missing
O16 - DPF: {A4150320-98EC-4DB6-9BFB-EBF4B6FBEB16} (DVM_IPCam2 Control) - http://79.26.17.222:88/codebase/DVM_IPCam2.ocx
O17 - HKLM\System\CCS\Services\Tcpip\..\{0B5CFAB4-D8EA-4632-89C5-A3A29A423268}: NameServer = 8.8.8.8,8.8.4.4
O17 - HKLM\System\CCS\Services\Tcpip\..\{AA2CCDFF-5791-40EA-A94F-C3E47DF678F0}: NameServer = 8.8.8.8,8.8.4.4
O17 - HKLM\System\CS1\Services\Tcpip\..\{0B5CFAB4-D8EA-4632-89C5-A3A29A423268}: NameServer = 8.8.8.8,8.8.4.4
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\PROGRA~1\MICROS~2\Office12\GR99D3~1.DLL
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FILECO~1\Skype\SKYPE4~1.DLL
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 LM Service - Unknown owner - C:\Programmi\File comuni\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Programmi\File comuni\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Avira Upgrade Service (AviraUpgradeService) - Unknown owner - C:\WINDOWS\TEMP\AVSETUP_5143f9c1\avupgsvc.exe (file missing)
O23 - Service: BlackBerry Device Manager (Blackberry Device Manager) - Research In Motion Limited - C:\Programmi\File comuni\Research In Motion\USB Drivers\BbDevMgr.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 Updater Service (gusvc) - Google - C:\Programmi\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Canon Inkjet Printer/Scanner/Fax Extended Survey Program (IJPLMSVC) - Unknown owner - C:\Programmi\Canon\IJPLM\IJPLMSVC.EXE
O23 - Service: Servizio iPod (iPod Service) - Apple Inc. - C:\Programmi\iPod\bin\iPodService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Oracle Corporation - C:\Programmi\Java\jre7\bin\jqs.exe
O23 - Service: NMSAccessU - Unknown owner - C:\Programmi\CDBurnerXP\NMSAccessU.exe
O23 - Service: Pos Service (PowerOffer Service) - PowerOfferService - C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\PosService\Pos.exe
O23 - Service: Serv Updater (ServUpdater) - ServiceUpd - C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\ServUpdater\ServiceUpd.exe
O23 - Service: Skype Updater (SkypeUpdate) - Skype Technologies - C:\Programmi\Skype\Updater\Updater.exe
O23 - Service: Software Upd (SoftwareUpd) - SoftwareUpdService - C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\SoftwareUpdater\SoftwareUpdService.exe

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End of file - 8050 bytes

grazie

Riavvia in modalità provvisoria, lancia HJTH e cancella le seguenti righe (tasto Fix Checked):

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O4 - HKLM\..\Run: [PosService] C:\Documents and Settings\All Users\Documenti\AppData\PoApp\PLauncher.exe
O23 - Service: Pos Service (PowerOffer Service) - PowerOfferService - C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\PosService\Pos.exe
O23 - Service: Software Upd (SoftwareUpd) - SoftwareUpdService - C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\SoftwareUpdater\SoftwareUpdService.exe
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Riferisci se il problema si risolve.

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