rallentamento PC anomalo

[romrom]

amici un aiuto
ho un laptop Toshiba Equium con CPU Sempron 1,4 Ghz e ram disponibile 448 Mb (un po se ne va per la video) e SO XP SP3.
da un po di tempo il pc che non è mai stato un fulmine è rallentato al limite dell'arresto : non gira niente e la connessione s'interrompe spesso perché la CPU è sotto sforzo per uso eccessivo e comunque lavora sempre parecchio e il file di paging sempre sui 500 MB e oltre. Ho fatto scanner vari ma senza risultato ma il dubbio resta. Lo scanner antivirus on line in modalità provvisoria ha impiegato varie ore... con una lentezza strana ma comunque no ha trovato nulla. Cosa sarà? forse problema hardware? per controllo allego il log e se trovate robaccia fxo senza problema. Grazie di un aiuto

Logfile of HijackThis v1.99.1
Scan saved at 18.18.47, on 18/03/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP3 (6.00.2900.5512)

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:\Programmi\Windows Defender\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\Alwil Software\Avast4\aswUpdSv.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Documents and Settings\rom\Documenti\Tools Sicurezza\AVG Anti-Spyware 7.5\guard.exe
C:\WINDOWS\system32\DVDRAMSV.exe
C:\WINDOWS\system32\tcpsvcs.exe
C:\WINDOWS\System32\snmp.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\Alwil Software\Avast4\ashMaiSv.exe
C:\WINDOWS\system32\dla\tfswctrl.exe
C:\Programmi\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Programmi\Toshiba\Windows Utilities\Hotkey.exe
C:\Programmi\TOSHIBA\Touch and Launch\PadExe.exe
C:\Programmi\TOSHIBA\TOSHIBA Zooming Utility\SmoothView.exe
C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
C:\Programmi\Windows Defender\MSASCui.exe
C:\Programmi\Java\jre1.6.0_07\bin\jusched.exe
C:\Programmi\Jetico\Jetico Personal Firewall\fwsrv.exe
C:\WINDOWS\FixCamera.exe
C:\WINDOWS\tsnp325.exe
C:\WINDOWS\vsnp325.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\TOSHIBA\TOSCDSPD\toscdspd.exe
C:\Programmi\Skype\Phone\Skype.exe
C:\Programmi\Alwil Software\Avast4\ashWebSv.exe
C:\Programmi\Mozilla Firefox\firefox.exe
C:\WINDOWS\explorer.exe
C:\Documents and Settings\rom\Documenti\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.hotmail.com/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://r.office.microsoft.com/r/rlido11 ... ?clid=1040
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = dc:8080
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - (no file)
O2 - BHO: (no name) - {0A87E45F-537A-40B4-B812-E2544C21A09F} - (no file)
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\system32\dla\tfswshx.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre1.6.0_07\bin\ssv.dll
O2 - BHO: (no name) - {9ECB9560-04F9-4bbc-943D-298DDF1699E1} - (no file)
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - (no file)
O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe
O4 - HKLM\..\Run: [ATIPTA] "C:\Programmi\ATI Technologies\ATI Control Panel\atiptaxx.exe"
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [Toshiba Hotkey Utility] "C:\Programmi\Toshiba\Windows Utilities\Hotkey.exe" /lang IT
O4 - HKLM\..\Run: [PadTouch] C:\Programmi\TOSHIBA\Touch and Launch\PadExe.exe
O4 - HKLM\..\Run: [SmoothView] C:\Programmi\TOSHIBA\TOSHIBA Zooming Utility\SmoothView.exe
O4 - HKLM\..\Run: [SynTPLpr] C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [Windows Defender] "C:\Programmi\Windows Defender\MSASCui.exe" -hide
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\Java\jre1.6.0_07\bin\jusched.exe"
O4 - HKLM\..\Run: [JeticoPFStartup] "C:\Programmi\Jetico\Jetico Personal Firewall\fwsrv.exe"
O4 - HKLM\..\Run: [FixCamera] C:\WINDOWS\FixCamera.exe
O4 - HKLM\..\Run: [tsnp325] C:\WINDOWS\tsnp325.exe
O4 - HKLM\..\Run: [snp325] C:\WINDOWS\vsnp325.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [TOSCDSPD] C:\Programmi\TOSHIBA\TOSCDSPD\toscdspd.exe
O4 - HKCU\..\Run: [Skype] "C:\Programmi\Skype\Phone\Skype.exe" /nosplash /minimized
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - http://www.kaspersky.com/kos/eng/partne ... nicode.cab
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {193C772A-87BE-4B19-A7BB-445B226FE9A1} (ewidoOnlineScan Control) - http://downloads.ewido.net/ewidoOnlineScan.cab
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/Shar ... vSniff.cab
O16 - DPF: {2D8ED06D-3C30-438B-96AE-4D110FDC1FB8} (ActiveScan 2.0 Installer Class) - http://acs.pandasoftware.com/activescan ... stubie.cab
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://download.bitdefender.com/resourc ... oscan8.cab
O16 - DPF: {5ED80217-570B-4DA9-BF44-BE107C0EC166} (Windows Live Safety Center Base Module) - http://cdn.scan.onecare.live.com/resour ... ase370.cab
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/Shar ... /cabsa.cab
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftup ... 7463711718
O16 - DPF: {7B297BFD-85E4-4092-B2AF-16A91B2EA103} (WScanCtl Class) - http://www.ca.com/us/securityadvisor/vi ... ebscan.cab
O16 - DPF: {BDBDE413-7B1C-4C68-A8FF-C5B2B4090876} (F-Secure Online Scanner 3.3) - http://support.f-secure.com/ols/fscax.cab
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FILECO~1\Skype\SKYPE4~1.DLL
O20 - Winlogon Notify: dimsntfy - %SystemRoot%\System32\dimsntfy.dll (file missing)
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O20 - Winlogon Notify: WRNotifier - WRLogonNTF.dll (file missing)
O23 - Service: Servizio di configurazione Atheros (ACS) - Unknown owner - C:\WINDOWS\system32\acs.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Programmi\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Programmi\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Programmi\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Programmi\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: AVG Anti-Spyware Guard - GRISOFT s.r.o. - C:\Documents and Settings\rom\Documenti\Tools Sicurezza\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: DVD-RAM_Service - Matsushita Electric Industrial Co., Ltd. - C:\WINDOWS\system32\DVDRAMSV.exe
O23 - Service: Firebird Server - MAGIX Instance (FirebirdServerMAGIXInstance) - MAGIX® - C:\Programmi\MAGIX\Common\Database\bin\fbserver.exe
O23 - Service: Lavasoft Ad-Aware Service - Lavasoft - C:\Programmi\Lavasoft\Ad-Aware\AAWService.exe
O23 - Service: ScriptBlocking Service (SBService) - Unknown owner - C:\PROGRA~1\FILECO~1\SYMANT~1\SCRIPT~1\SBServ.exe (file missing)
O23 - Service: Speed Disk service - Sonix Co. Ltd. - (no file)

[ste_95]

Dai un'occhiata a questo articolo:
http://www.MegaLab.it/3502/computer-len ... ei-malware

Poi, fai anche uno scandisk.

[ba_61]

allego il log

Vedi come e dove postere il LOG

[romrom]

scusate del log
grazie dei consigli che comunque avevo già fatto anche se non l'ho spiegato in dettaglio.
Ho già fatto quanto segue:
scanner e pulizia con CCleaner aggiornato incluso pulizia registro e controllo avvio con rimozione programmi non indispensabili
scanner con Advanced System Care
scanner con SB Search&destroy
scanner con AdAware
scanner con Superantispyware
scanner con Malwarebit Antimalware
scanner e setting con Windows Defender
aggiornamento drivers
deframmentazione ripetuta
ma... la situazione non è migliorata... e mi chiedo sempre perché la CPU lavori tanto insieme al file di paging?
aspetto altri consigli e grazie della pazienza