Il caos!

[Hunt]

Ciao. Innanzitutto grazie mille della collaborazione. Ho fatto più o meno come hai detto: subito la scansione con Norton in modalità provvisoria, ma niente di fatto. Ne ho fatta un altra con hijack, come mi segnalava la discussione da te suggerita e mi ha dato questo risultato:
Logfile of HijackThis v1.99.1
Scan saved at 17.05.14, on 14/03/2006
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\csrss.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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\File comuni\Symantec Shared\ccProxy.exe
C:\Programmi\File comuni\Symantec Shared\ccSetMgr.exe
C:\Programmi\Norton Internet Security\ISSVC.exe
C:\Programmi\File comuni\Symantec Shared\SNDSrvc.exe
C:\Programmi\File comuni\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\Programmi\File comuni\Symantec Shared\ccEvtMgr.exe
c:\acer\KnobService.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\SOUNDMAN.EXE
C:\WINDOWS\mHotkey.exe
C:\WINDOWS\CNYHKey.exe
C:\WINDOWS\mHotMon.exe
C:\Program Files\Aspire\WFTVFM\WFWIZ.exe
C:\acer\KnobMonitor.exe
C:\ACER\MPS.EXE
C:\Programmi\Hewlett-Packard\HP Share-to-Web\hpgs2wnd.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_S4I0D2.EXE
C:\Programmi\D-Tools\daemon.exe
C:\Programmi\File comuni\Symantec Shared\ccApp.exe
C:\Programmi\iTunes\iTunesHelper.exe
C:\Programmi\QuickTime\qttask.exe
C:\Programmi\eBay\eBay Toolbar2\eBayTBDaemon.exe
C:\Programmi\Hewlett-Packard\HP Share-to-Web\hpgs2wnf.exe
C:\WINDOWS\Samsung\ComSMMgr\ssmmgr.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Programmi\Messenger\msmsgs.exe
C:\Programmi\MSN Messenger\MsnMsgr.Exe
C:\Programmi\Skype\Phone\Skype.exe
C:\Programmi\Spyware Doctor\swdoctor.exe
C:\Programmi\Norton Internet Security\Norton AntiVirus\navapsvc.exe
C:\PROGRA~1\NORTON~3\NORTON~1\NPROTECT.EXE
C:\WINDOWS\System32\nvsvc32.exe
C:\Programmi\Spyware Doctor\sdhelp.exe
C:\PROGRA~1\NORTON~3\NORTON~1\SPEEDD~1\NOPDB.EXE
C:\WINDOWS\System32\svchost.exe
C:\Programmi\File comuni\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\WINDOWS\system32\wdfmgr.exe
C:\WINDOWS\system32\fxssvc.exe
C:\Programmi\iPod\bin\iPodService.exe
C:\WINDOWS\System32\alg.exe
C:\Programmi\Microsoft Office\OFFICE11\WINWORD.EXE
C:\Programmi\Internet Explorer\iexplore.exe
C:\Programmi\File comuni\Symantec Shared\AdBlocking\NSMdtr.exe
C:\Programmi\File comuni\Microsoft Shared\Source Engine\OSE.EXE
C:\Documents and Settings\Leonardo\Desktop\hijackthis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.google.it
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://lettereold.humnet.unipi.it/ls_ar ... _arte.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://global.acer.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.google.it
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.unipi.it
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://global.acer.com/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: PCTools Site Guard - {5C8B2A36-3DB1-42A4-A3CB-D426709BBFEB} - C:\PROGRA~1\SPYWAR~1\tools\iesdsg.dll
O2 - BHO: Norton Internet Security - {9ECB9560-04F9-4bbc-943D-298DDF1699E1} - C:\Programmi\File comuni\Symantec Shared\AdBlocking\NISShExt.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Programmi\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: (no name) - {92085AD4-F48A-450D-BD93-B28CC7DF67CE} - (no file)
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar2.dll
O3 - Toolbar: Norton Internet Security - {0B53EAC3-8D69-4b9e-9B19-A37C9A5676A7} - C:\Programmi\File comuni\Symantec Shared\AdBlocking\NISShExt.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Programmi\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [CHotkey] mHotkey.exe
O4 - HKLM\..\Run: [ledpointer] CNYHKey.exe
O4 - HKLM\..\Run: [SSER] sser.exe
O4 - HKLM\..\Run: [mHotmon] mHotMon.exe
O4 - HKLM\..\Run: [Aspire Schedule] C:\Program Files\Aspire\WFTVFM\WFWIZ.exe
O4 - HKLM\..\Run: [KnobMonitor] C:\acer\KnobMonitor.exe
O4 - HKLM\..\Run: [MPS] C:\ACER\MPS.EXE
O4 - HKLM\..\Run: [CloneDVDElbyDelay] "C:\Programmi\Elaborate Bytes\CloneDVD\ElbyCheck.exe" /L ElbyDelay
O4 - HKLM\..\Run: [Share-to-Web Namespace Daemon] C:\Programmi\Hewlett-Packard\HP Share-to-Web\hpgs2wnd.exe
O4 - HKLM\..\Run: [EPSON Stylus C84 Series] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_S4I0D2.EXE /P23 "EPSON Stylus C84 Series" /O5 "LPT1:" /M "Stylus C84"
O4 - HKLM\..\Run: [DAEMON Tools-1033] "C:\Programmi\D-Tools\daemon.exe" -lang 1033
O4 - HKLM\..\Run: [ccApp] "C:\Programmi\File comuni\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [REGSHAVE] C:\Programmi\REGSHAVE\REGSHAVE.EXE /AUTORUN
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [iTunesHelper] "C:\Programmi\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [eBayToolbar] C:\Programmi\eBay\eBay Toolbar2\eBayTBDaemon.exe
O4 - HKLM\..\Run: [Samsung Common SM] "C:\WINDOWS\Samsung\ComSMMgr\ssmmgr.exe" /autorun
O4 - HKLM\..\Run: [SpyFalcon] C:\Programmi\SpyFalcon\SpyFalcon.exe /h
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\System32\NVMCTRAY.DLL,NvTaskbarInit
O4 - HKCU\..\Run: [MSMSGS] "C:\Programmi\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [MsnMsgr] "C:\Programmi\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [Norton SystemWorks] "C:\Programmi\Norton SystemWorks\cfgwiz.exe" /GUID {05858CFD-5CC4-4ceb-AAAF-CF00BF39736A} /MODE CfgWiz
O4 - HKCU\..\Run: [Skype] "C:\Programmi\Skype\Phone\Skype.exe" /nosplash /minimized
O4 - HKCU\..\Run: [Free Download Manager] C:\Programmi\Free Download Manager\fdm.exe -autorun
O4 - HKCU\..\Run: [Spyware Doctor] "C:\Programmi\Spyware Doctor\swdoctor.exe" /Q
O4 - Global Startup: Adobe Gamma.lnk = C:\Programmi\File comuni\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Programmi\File comuni\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Avvio veloce di Adobe Reader.lnk = C:\Programmi\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O8 - Extra context menu item: &Cerca con Google - res://C:\Programmi\Google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: &eBay Search - res://C:\Programmi\eBay\eBay Toolbar2\eBayTb.dll/RCSearch.html
O8 - Extra context menu item: &Traduci parola in italiano - res://C:\Programmi\Google\GoogleToolbar1.dll/cmwordtrans.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\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: Pagine simili - res://C:\Programmi\Google\GoogleToolbar1.dll/cmsimilar.html
O8 - Extra context menu item: Versione cache della pagina - res://C:\Programmi\Google\GoogleToolbar1.dll/cmcache.html
O9 - Extra button: Spyware Doctor - {2D663D1A-8670-49D9-A1A5-4C56B4E14E84} - C:\WINDOWS\System32\shdocvw.dll
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Organizzatore ricerche - {9455301C-CF6B-11D3-A266-00C04F689C50} - C:\Programmi\File comuni\Microsoft Shared\Encarta Researcher\EROPROJ.DLL
O9 - Extra button: (no name) - {B205A35E-1FC4-4CE3-818B-899DBBB3388C} - C:\Programmi\File comuni\Microsoft Shared\Encarta Search Bar\ENCSBAR.DLL
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
O14 - IERESET.INF: START_PAGE_URL=http://global.acer.com/
O17 - HKLM\System\CCS\Services\Tcpip\..\{34BF09B7-2BD8-4810-B31B-7FD6A7B514C6}: NameServer = 62.211.69.150 212.48.4.15
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O23 - Service: Adobe LM Service - Adobe Systems - C:\Programmi\File comuni\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Network Proxy (ccProxy) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\ccProxy.exe
O23 - Service: Symantec Password Validation (ccPwdSvc) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\ccSetMgr.exe
O23 - Service: iPod Service (iPodService) - Apple Computer, Inc. - C:\Programmi\iPod\bin\iPodService.exe
O23 - Service: ISSvc (ISSVC) - Symantec Corporation - C:\Programmi\Norton Internet Security\ISSVC.exe
O23 - Service: Knob Service (KNOBSERV) - Acer Inc. - c:\acer\KnobService.exe
O23 - Service: Macromedia Licensing Service - Unknown owner - C:\Programmi\File comuni\Macromedia Shared\Service\Macromedia Licensing.exe
O23 - Service: Servizio Auto-Protect di Norton AntiVirus (navapsvc) - Symantec Corporation - C:\Programmi\Norton Internet Security\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton Unerase Protection (NProtectService) - Symantec Corporation - C:\PROGRA~1\NORTON~3\NORTON~1\NPROTECT.EXE
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: SAVScan - Symantec Corporation - C:\Programmi\Norton Internet Security\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service (SBService) - Symantec Corporation - C:\PROGRA~1\FILECO~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: PC Tools Spyware Doctor (SDhelper) - PC Tools Research Pty Ltd - C:\Programmi\Spyware Doctor\sdhelp.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec SPBBCSvc (SPBBCSvc) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: Speed Disk service - Symantec Corporation - C:\PROGRA~1\NORTON~3\NORTON~1\SPEEDD~1\NOPDB.EXE
O23 - Service: Symantec Core LC - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\CCPD-LC\symlcsvc.exe

Sinceramente non saprei da che parte rifarmi.
Ho provato a seguire le indicazioni ma mi sono arenato su un paio di termini tecnici.
In poche parole più di qua non so andare da solo........