e rieccomi con il computer formattato ma con lo stesso problema.
continua a rilevarmi explorer.exe e winlogon.exe come virus.
ecco il log di hijackthis


Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 13.05.37, on 06/09/2010
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.5730.0013)
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:\Programmi\Intel\WiFi\bin\S24EvMon.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\Intel\WiFi\bin\EvtEng.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Programmi\File comuni\Intel\WirelessCommon\RegSrvc.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\ATK0100\HControl.exe
C:\Programmi\ASUS\ATK Media\DMEDIA.EXE
C:\Programmi\ASUS\Splendid\ACMON.exe
C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Programmi\Wireless Console 2\wcourier.exe
C:\WINDOWS\system32\ACEngSvr.exe
C:\Programmi\Intel\WiFi\bin\ZCfgSvc.exe
C:\Programmi\File comuni\Intel\WirelessCommon\iFrmewrk.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\ATK0100\ATKOSD.exe
C:\WINDOWS\system32\wbem\unsecapp.exe
C:\WINDOWS\system32\msiexec.exe
C:\Programmi\Toshiba\Bluetooth Toshiba Stack\TosBtMng.exe
C:\Programmi\Toshiba\Bluetooth Toshiba Stack\TosA2dp.exe
C:\Programmi\Toshiba\Bluetooth Toshiba Stack\TosBtHid.exe
C:\Programmi\Toshiba\Bluetooth Toshiba Stack\TosBtHsp.exe
C:\Programmi\Toshiba\Bluetooth Toshiba Stack\tosOBEX.exe
C:\Programmi\Toshiba\Bluetooth Toshiba Stack\tosBtProc.exe
C:\Programmi\AVG\AVG9\avgwdsvc.exe
C:\Programmi\AVG\AVG9\avgnsx.exe
C:\Programmi\AVG\AVG9\avgemc.exe
C:\Programmi\AVG\AVG9\avgcsrvx.exe
C:\Programmi\AVG\AVG9\avgchsvx.exe
C:\Programmi\AVG\AVG9\avgrsx.exe
C:\Programmi\AVG\AVG9\avgcsrvx.exe
C:\Programmi\AVG\AVG9\avgtray.exe
C:\Programmi\AVG\AVG9\avgscanx.exe
C:\Programmi\Malwarebytes' Anti-Malware\mbam.exe
C:\Documents and Settings\Roberto\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Roberto\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Roberto\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Roberto\Documenti\Downloads\HijackThis.ex e

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
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 =
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://go.microsoft.com/fwlink/?LinkId=74005
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Programmi\AVG\AVG9\avgssie.dll
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\PROGRA~1\MICROS~2\Office12\GRA8E1~1.DLL
O2 - BHO: ASUS Security Protect Manager - {DF21F1DB-80C6-11D3-9483-B03D0EC10000} - C:\Programmi\ASUS Security Center\ASUS Security Protect Manager\Bin\ItIEAddIn.dll
O4 - HKLM\..\Run: [HControl] C:\WINDOWS\ATK0100\HControl.exe
O4 - HKLM\..\Run: [CognizanceTS] rundll32.exe C:\PROGRA~1\ASUSSE~1\ASUSSE~1\Bin\ASTSVCC.dll,Regi sterModule
O4 - HKLM\..\Run: [ATKMEDIA] C:\Programmi\ASUS\ATK Media\DMEDIA.EXE
O4 - HKLM\..\Run: [ACMON] C:\Programmi\ASUS\Splendid\ACMON.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [Wireless Console 2] C:\Programmi\Wireless Console 2\wcourier.exe
O4 - HKLM\..\Run: [IntelZeroConfig] "C:\Programmi\Intel\WiFi\bin\ZCfgSvc.exe"
O4 - HKLM\..\Run: [IntelWireless] "C:\Programmi\File comuni\Intel\WirelessCommon\iFrmewrk.exe" /tf Intel Wireless Tray
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [AlcWzrd] ALCWZRD.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [AVG9_TRAY] C:\PROGRA~1\AVG\AVG9\avgtray.exe
O4 - HKLM\..\Run: [GrooveMonitor] "C:\Programmi\Microsoft Office\Office12\GrooveMonitor.exe"
O4 - HKLM\..\RunOnce: [Malwarebytes' Anti-Malware] C:\Programmi\Malwarebytes' Anti-Malware\mbamgui.exe /install /silent
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Google Update] "C:\Documents and Settings\Roberto\Impostazioni locali\Dati applicazioni\Google\Update\GoogleUpdate.exe" /c
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-19\..\RunOnce: [nltide_2] regsvr32 /s /n /i:U shell32 (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-20\..\RunOnce: [nltide_2] regsvr32 /s /n /i:U shell32 (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\RunOnce: [nltide_2] regsvr32 /s /n /i:U shell32 (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunOnce: [nltide_2] regsvr32 /s /n /i:U shell32 (User 'Default user')
O4 - Global Startup: Bluetooth Manager.lnk = ?
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
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\PROGRA~1\MICROS~2\Office12\GR99D3~1.DLL
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Programmi\AVG\AVG9\avgpp.dll
O20 - AppInit_DLLs: APSHook.dll
O20 - Winlogon Notify: avgrsstarter - avgrsstx.dll (file missing)
O20 - Winlogon Notify: OneCard - C:\Programmi\ASUS Security Center\ASUS Security Protect Manager\Bin\ASWLNPkg.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: AVG Free E-mail Scanner (avg9emc) - AVG Technologies CZ, s.r.o. - C:\Programmi\AVG\AVG9\avgemc.exe
O23 - Service: AVG Free WatchDog (avg9wd) - AVG Technologies CZ, s.r.o. - C:\Programmi\AVG\AVG9\avgwdsvc.exe
O23 - Service: Intel(R) PROSet/Wireless Event Log (EvtEng) - Intel(R) Corporation - C:\Programmi\Intel\WiFi\bin\EvtEng.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programmi\File comuni\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Intel(R) PROSet/Wireless Registry Service (RegSrvc) - Intel(R) Corporation - C:\Programmi\File comuni\Intel\WirelessCommon\RegSrvc.exe
O23 - Service: Intel(R) PROSet/Wireless WiFi Service (S24EventMonitor) - Intel(R) Corporation - C:\Programmi\Intel\WiFi\bin\S24EvMon.exe

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End of file - 8502 bytes


devo fixare qualcosa?