il norton mi rileva le seguenti info :
nome oggetto : c:\windows\system32\com7.now
nome virus :trojan.linkoptimizer
azione intrapresa:impossibile riparare il file
accesso negato al file
Questa maledetta finestra continua ad uscirmi e non riesco a cancellarlo!
ho provato con la guida creata da steven sulla rimozione di linkoptimizer , dopo aver fatto i primi tentativi a nullo ...con la rimozione finale ho provato ma non mi sento sicuro di cancellare le cose guiste !
il log di hijack è il seguente


Logfile of HijackThis v1.99.1
Scan saved at 15.29.23, on 09/09/2006
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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:\Programmi\File comuni\Symantec Shared\ccSetMgr.exe
C:\Programmi\File comuni\Symantec Shared\ccEvtMgr.exe
C:\Programmi\File comuni\Symantec Shared\ccProxy.exe
C:\Programmi\File comuni\Symantec Shared\SNDSrvc.exe
C:\Programmi\File comuni\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\Programmi\File comuni\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\Belkin\Belkin Wireless Network Utility\WLService.exe
C:\Programmi\Belkin\Belkin Wireless Network Utility\WLanCfgG.exe
C:\Programmi\Norton Internet Security\Norton AntiVirus\navapsvc.exe
C:\WINDOWS\system32\fxssvc.exe
C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Programmi\CRW\shwicon.exe
C:\Program Files\Aspire Arcade\PCMService.exe
C:\WINDOWS\System32\NILaunch.exe
C:\PROGRA~1\LAUNCH~1\CPLCL32.EXE
C:\Programmi\File comuni\Symantec Shared\ccApp.exe
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\WINDOWS\AGRSMMSG.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Programmi\MSN Messenger\MsnMsgr.Exe
C:\Programmi\Internet Explorer\iexplore.exe
C:\Programmi\File comuni\Symantec Shared\Security Console\NSCSRVCE.EXE
C:\WINDOWS\System32\wuauclt.exe
C:\WINDOWS\System32\msiexec.exe
C:\download\programmi di pulizia pc\hijackthis\HijackThis.exe
C:\Programmi\Messenger\msmsgs.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://global.acer.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: Class - {0386D421-98BD-0323-3FA8-ED1C427590DC} - (no file)
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: Class - {27A2C10C-2B21-2E4D-B240-7444E79F4691} - (no file)
O2 - BHO: Norton Internet Security 2006 - {9ECB9560-04F9-4bbc-943D-298DDF1699E1} - C:\Programmi\File comuni\Symantec Shared\AdBlocking\NISShExt.dll
O2 - BHO: NAV Helper - {A8F38D8D-E480-4D52-B7A2-731BB6995FDD} - C:\Programmi\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O2 - BHO: (no name) - {BDF3E430-B101-42AD-A544-FADC6B084872} - (no file)
O3 - Toolbar: (no name) - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - (no file)
O3 - Toolbar: andRadio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: Norton Internet Security 2006 - {0B53EAC3-8D69-4b9e-9B19-A37C9A5676A7} - C:\Programmi\File comuni\Symantec Shared\AdBlocking\NISShExt.dll
O3 - Toolbar: Norton AntiVirus - {C4069E3A-68F1-403E-B40E-20066696354B} - C:\Programmi\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [SynTPLpr] C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [SSC_UserPrompt] "C:\Programmi\File comuni\Symantec Shared\Security Center\UsrPrmpt.exe"
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [ShowIcon_Chander_CRW Series Driver v1.17r019] C:\Programmi\CRW\shwicon.exe -t"Chander\CRW Series Driver v1.17r019"
O4 - HKLM\..\Run: [REGSHAVE] C:\Programmi\REGSHAVE\REGSHAVE.EXE /AUTORUN
O4 - HKLM\..\Run: [PCMService] "C:\Program Files\Aspire Arcade\PCMService.exe"
O4 - HKLM\..\Run: [Net-It Launcher] C:\WINDOWS\System32\NILaunch.exe
O4 - HKLM\..\Run: [LManager] C:\PROGRA~1\LAUNCH~1\CPLCL32.EXE
O4 - HKLM\..\Run: [LaunchApp] Alaunch
O4 - HKLM\..\Run: [ccApp] "C:\Programmi\File comuni\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [AGRSMMSG] AGRSMMSG.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Programmi\Java\jre1.5.0_06\bin\jusched.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Programmi\MSN Messenger\MsnMsgr.Exe" /background
O8 - Extra context menu item: Eandsporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~3\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.5.0_06\bin\npjpi150_06.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.5.0_06\bin\npjpi150_06.dll
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - :windir:\bdoscandel.exe (file missing)
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\OFFICE11\REFIEBAR.DLL
O15 - Trusted Zone: *.3
O15 - Trusted Zone: *.ACTALIS.IT
O15 - Trusted Zone: *.CIM-ITALIA.IT
O16 - DPF: {0B105630-3B1F-11D1-B443-00A0244D2920} (WebTreeCtrl Class) - http://www.cesimultimedia.it/ISPESL/WebTreeFX/download/WebTreeFX.cab
O16 - DPF: {1F2F4C9E-6F09-47BC-970D-3C54734667FE} (LSSupCtl Class) - https://www-secure.symantec.com/techsupp/asa/LSSupCtl.cab
O16 - DPF: {3451DEDE-631F-421C-8127-FD793AFC6CC8} (ActiveDataInfo Class) - https://www-secure.symantec.com/techsupp/asa/ctrl/SymAData.cab
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://download.bitdefender.com/resources/scan8/oscan8.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1144497053575
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O20 - AppInit_DLLs: \\?\C:\WINDOWS\System32\com7.now
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: Belkin 54g Wireless USB Network Adapter (Belkin 54g Wireless USB Network Adapter Service) - Unknown owner - C:\Programmi\Belkin\Belkin Wireless Network Utility\WLService.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Internet Security Password Validation (ccISPwdSvc) - Symantec Corporation - C:\Programmi\Norton Internet Security\ccPwdSvc.exe
O23 - Service: Symantec Network Proxy (ccProxy) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\ccProxy.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\ccSetMgr.exe
O23 - Service: COM Host (comHost) - Symantec Corporation - C:\Programmi\Norton Internet Security\comHost.exe
O23 - Service: Servizio Auto-Protect di Norton AntiVirus (navapsvc) - Symantec Corporation - C:\Programmi\Norton Internet Security\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton Protection Center Service (NSCService) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\Security Console\NSCSRVCE.EXE
O23 - Service: Symantec AVScan (SAVScan) - Symantec Corporation - C:\Programmi\Norton Internet Security\Norton AntiVirus\SAVScan.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: Symantec Core LC - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\CCPD-LC\symlcsvc.exe

ciao ,
quali sono i tentativi che hai fatto ? e con che risultati ? cerca di essere il piu preciso possibile nel riportare le info , cosi eviteremo di provare cose inutili....

allora ho provato a fare ripristino configurazione...ma non mi permette di farlo in una data antecedente a quella dove ho beccato il virus
Poi ho provato a fare bitdefender scan on line...ha trovato virus ...ma poi il problema restava
Ho provato con la rimozione manuale prima sysclean poi con rootkitrevealer...il problema è che non riesco ad individuare i file random non ce ne sono!!!1
ho eliminato solo un file .exe nella cartella \windows\temp il file è un pwqn6.exe
con hijack il log ve lo mandato ma non saprei che voci eliminare...questo è quanto

ho fatto la scansione che mi hai detto...
Non ha trovato alcun virus mi dice che Il computer è libero da virus e Trojan Horse conosciuti, 103046 file scansionati, 0 file infettati sulle unità disco.
Non è stato rilevato alcun virus in memoria.