ok grazie della risposta celere e dei consigli,
ho fatto come ha detto Luke e tolto i due file nascosti ma il sistema è ancora bloccato.
Ora faccio partire l'antivirus (ho Norton 2005 e Antivir).
Ho fatto partire hijackthis e il risultato è questo:
Logfile of HijackThis v1.99.1
Scan saved at 17.29.27, on 21/02/2006
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\PROGRA~1\WinZip\winzip32.exe
C:\Programmi\Internet Explorer\iexplore.exe
C:\WINDOWS\system32\cmd.exe
C:\DOCUME~1\Simon\IMPOST~1\Temp\HijackThis.exe
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
http://www.sophos.com/virusinfo/analyse ... otalv.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page =
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = C:\WINDOWS\PCHEALTH\HELPCTR\System\panels\blank.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 5.0\Acrobat\ActiveX\AcroIEHelper.ocx
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre1.5.0_06\bin\ssv.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar2.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Programmi\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Programmi\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar2.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb04.exe
O4 - HKLM\..\Run: [SSC_UserPrompt] C:\Programmi\File comuni\Symantec Shared\Security Center\UsrPrmpt.exe
O4 - HKLM\..\Run: [ccApp] "C:\Programmi\File comuni\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe /Consumer
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Programmi\Java\jre1.5.0_06\bin\jusched.exe
O4 - HKLM\..\Run: [avgnt] "C:\Programmi\AntiVir PersonalEdition Classic\avgnt.exe" /min
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - Global Startup: Acrobat Assistant.lnk = C:\Programmi\Adobe\Acrobat 5.0\Distillr\AcroTray.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Programmi\Microsoft Office\Office10\OSA.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: E&sporta in Microsoft Excel -
res://C:\PROGRA~1\MICROS~3\Office10\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: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.5.0_06\bin\ssv.dll
O12 - Plugin for .spop: C:\Programmi\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) -
http://security.symantec.com/sscv6/Shar ... vSniff.cab
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} -
http://www.bitdefender.com/scan8/oscan8.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) -
http://update.microsoft.com/windowsupda ... 7130693599
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) -
http://security.symantec.com/sscv6/Shar ... /cabsa.cab
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) -
http://a840.g.akamai.net/7/840/537/2004 ... scan53.cab
O16 - DPF: {80DD2229-B8E4-4C77-B72F-F22972D723EA} -
http://www.bitdefender.com/scan/Msie/bitdefender.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) -
http://www.pandasoftware.com/activescan/as5/asinst.cab
O16 - DPF: {EF791A6B-FC12-4C68-99EF-FB9E207A39E6} (McFreeScan Class) -
http://download.mcafee.com/molbin/iss-l ... cfscan.cab
O23 - Service: AntiVir Scheduler (AntiVirScheduler) - H+BEDV Datentechnik GmbH - C:\Programmi\AntiVir PersonalEdition Classic\sched.exe
O23 - Service: AntiVir PersonalEdition Classic Service (AntiVirService) - H+BEDV Datentechnik GmbH - C:\Programmi\AntiVir PersonalEdition Classic\avguard.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Programmi\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\ccEvtMgr.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: Servizio Auto-Protect di Norton AntiVirus (navapsvc) - Symantec Corporation - C:\Programmi\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton AntiVirus Firewall Monitor Service (NPFMntor) - Symantec Corporation - C:\Programmi\Norton AntiVirus\IWP\NPFMntor.exe
O23 - Service: Panda Process Protection Service (PavPrSrv) - Panda Software - C:\Programmi\File comuni\Panda Software\PavShld\pavprsrv.exe
O23 - Service: SAVScan - Symantec Corporation - C:\Programmi\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service (SBService) - Symantec Corporation - C:\PROGRA~1\FILECO~1\SYMANT~1\SCRIPT~1\SBServ.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
O23 - Service: SymWMI Service (SymWSC) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\Security Center\SymWSC.exe