Esegui 
vi invio il logfile di una macchina che ad ogni riavvio si impalla fino a quando non dà errore per un utilizzo eccessivo delle risorse. Una volta dato l'errore torna a funzionare abbastanza bene.
Se apro task manager durante l'accensione si vede proprio che l'utilizzo della memoria cresce lentamente fino al picco. Passato il limete e dopo la segnalazione di errore, tutto torna a livelli normali.........
Quale virus ci siamo presi questa volta?
Grazie in anticipo per l'aiuto. Ciao
Logfile of HijackThis v1.99.1
Scan saved at 9.51.31, on 26/10/2006
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\Programmi\NetScreen\NetScreen-Remote\IreIKE.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\Programmi\NavNT\defwatch.exe
C:\WINNT\System32\svchost.exe
C:\Programmi\NetScreen\NetScreen-Remote\IPSecMon.exe
C:\Programmi\File comuni\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Programmi\NavNT\rtvscan.exe
C:\WINNT\system32\nvsvc32.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\Explorer.EXE
C:\Programmi\QuickTime\qttask.exe
C:\Programmi\Adobe\Acrobat 7.0\Distillr\Acrotray.exe
C:\Programmi\OLYMPUS\OLYMPUS Master\Monitor.exe
C:\WINNT\System32\davctool.exe
C:\Programmi\FileMaker\FileMaker Pro 8\FileMaker Pro.exe
C:\Programmi\File comuni\Real\Update_OB\realsched.exe
C:\Programmi\Microsoft Office\OFFICE11\OUTLOOK.EXE
C:\Programmi\Internet Explorer\IEXPLORE.EXE
\Server1\Drivers\Software & Driver\Spy VARI\HiJack\HijackThis.exe
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.libero.it/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {2a6af021-17a2-4014-8624-cf6015f82fad} - (no file)
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar2.dll
O2 - BHO: AcroIEToolbarHelper Class - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Programmi\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll
O3 - Toolbar: @msdxmLC.dll,-1@1033,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\System32\msdxm.ocx
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar2.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Programmi\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINNT\system32\NeroCheck.exe
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [TkBellExe] "C:\Programmi\File comuni\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [RegPure] C:\Programmi\RegistryPurifier\bin\Release\RgPurify.exe -startup
O4 - HKLM\..\Run: [Acrobat Assistant 7.0] "C:\Programmi\Adobe\Acrobat 7.0\Distillr\Acrotray.exe"
O4 - HKLM\..\Run: [OM_Monitor] C:\Programmi\OLYMPUS\OLYMPUS Master\FirstStart.exe
O4 - HKLM\..\Run: [msupdtwiz] C:\WINNT\msupdtwiz.exe s
O4 - HKLM\..\Run: [brwdiag] C:\WINNT\system32\brwconf.exe
O4 - HKCU\..\Run: [NBJ] "C:\Programmi\Ahead\Nero BackItUp\NBJ.exe"
O4 - HKCU\..\Run: [OM_Monitor] C:\Programmi\OLYMPUS\OLYMPUS Master\Monitor.exe
O4 - Global Startup: Avvio veloce di Adobe Acrobat.lnk = C:\Programmi\Adobe\Acrobat 7.0\Acrobat\acrobat_sl.exe
O4 - Global Startup: Logitech Desktop Messenger.lnk = C:\Programmi\Logitech\Desktop Messenger\8876480\Program\LDMConf.exe
O8 - Extra context menu item: &Cerca con Google - res://c:\programmi\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: &Traduci parola in italiano - res://c:\programmi\google\GoogleToolbar2.dll/cmwordtrans.html
O8 - Extra context menu item: Converti destinazione link in Adobe PDF - res://C:\Programmi\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Converti destinazione link in file PDF esistente - res://C:\Programmi\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Converti i link selezionati in Adobe PDF - res://C:\Programmi\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: Converti i link selezionati in file PDF esistente - res://C:\Programmi\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: Converti in Adobe PDF - res://C:\Programmi\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Converti nel file PDF esistente - res://C:\Programmi\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Converti selezione in Adobe PDF - res://C:\Programmi\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Converti selezione in file PDF esistente - res://C:\Programmi\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Link a ritroso - res://c:\programmi\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Pagine simili - res://c:\programmi\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: Versione cache della pagina - res://c:\programmi\google\GoogleToolbar2.dll/cmcache.html
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O16 - DPF: {10981C84-2509-402D-9E30-CB889453B1BE} (B2BFlashLoader.B2BFlashLoaderLib) - http://www.tuagenzia.it/downloadfiles/a ... Loader.CAB
O16 - DPF: {273415DA-A564-43AE-BD81-593377AF0FDA} (ServicesLib.ServicesMgr) - http://10.193.128.140/NVPportal/htdocs/ ... cesLib.CAB
O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} - http://software-dl.real.com/10bb81f8679 ... 601_it.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/msnme ... loader.cab
O16 - DPF: {B68AAAA1-D045-4ADC-8A7D-350F9F59CC7F} (NvpManager.Interface) - http://10.193.128.140/NVPportal/htdocs/ ... anager.cab
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = S-I.it
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = S-I.it
O17 - HKLM\System\CS2\Services\Tcpip\Parameters: Domain = S-I.it
O20 - AppInit_DLLs: wshtlprh.dll confbrw.dll brwstat.dll
O20 - Winlogon Notify: brwmgr - C:\WINNT\SYSTEM32\brwmgr32.dll
O20 - Winlogon Notify: davctool - C:\WINNT\system32\davctool.dll
O20 - Winlogon Notify: NavLogon - C:\WINNT\system32\NavLogon.dll
O23 - Service: DefWatch - Symantec Corporation - C:\Programmi\NavNT\defwatch.exe
O23 - Service: Servizio amministrativo di Gestione disco logico (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: iPod Service (iPodService) - Apple Computer, Inc. - C:\Programmi\iPod\bin\iPodService.exe
O23 - Service: SafeNet Monitor Service (IPSECMON) - SafeNet - C:\Programmi\NetScreen\NetScreen-Remote\IPSecMon.exe
O23 - Service: SafeNet IKE Service (IREIKE) - SafeNet - C:\Programmi\NetScreen\NetScreen-Remote\IreIKE.exe
O23 - Service: Norton AntiVirus Server - Symantec Corporation - C:\Programmi\NavNT\rtvscan.exe
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINNT\system32\nvsvc32.exe
