Come sistema operativo uso XP SP3.
Una scansione completa con KASPERSKY 2009 mi da un virus in quarantena, anzi me lo dava perchè dopo il riavvio del sistema non lo indica più nemmeno in quarantena. E' normale? Io non ho eliminato niente.
Dopo la scansione anche con Panda Activ Scan mi rilevava 1 virus, prima del riavvio.
La scansione con Malwarebytes non mi da nessuna anomalia.
Vi allego il logfile di Hijack effettuato dopo il riavvio del computer, c'è qualcosa che non va o consigliato da eliminare?
Spero di essere stato chiaro con tutte queste scansioni, grazie anticipatamente.

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 14.56.59, on 21/09/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\Programmi\HPQ\IAM\bin\asghost.exe
C:\Programmi\File comuni\Symantec Shared\ccSetMgr.exe
C:\Programmi\File comuni\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\File comuni\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\Kaspersky Lab\Kaspersky Internet Security 2009\avp.exe
C:\Programmi\Bonjour\mDNSResponder.exe
C:\Programmi\WIDCOMM\Software Bluetooth\bin\btwdins.exe
C:\Programmi\Prevx\prevx.exe
C:\WINDOWS\System32\GEARSec.exe
C:\Programmi\Java\jre6\bin\jqs.exe
C:\Programmi\Norton Ghost\Agent\VProSvc.exe
C:\Programmi\Analog Devices\SoundMAX\SMAgent.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\File comuni\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\Programmi\WINDEasyConnect\WTGService.exe
C:\Programmi\Prevx\prevx.exe
C:\Programmi\Analog Devices\SoundMAX\SMax4PNP.exe
C:\WINDOWS\AGRSMMSG.exe
C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
C:\Programmi\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Programmi\HPQ\Quick Launch Buttons\EabServr.exe
C:\WINDOWS\system32\dla\tfswctrl.exe
C:\Programmi\hpq\HP Wireless Assistant\HP Wireless Assistant.exe
C:\Programmi\Hamlet HDSL640S USB ADSL Modem\CnxDslTb.exe
C:\Programmi\Kaspersky Lab\Kaspersky Internet Security 2009\avp.exe
C:\Programmi\File comuni\Symantec Shared\ccApp.exe
C:\Programmi\Norton Ghost\Agent\GhostTray.exe
C:\Programmi\Hewlett-Packard\HP Software Update\HPWuSchd.exe
C:\WINDOWS\system32\spool\drivers\w32x86\3\hpztsb08.exe
C:\Programmi\Hewlett-Packard\Digital Imaging\bin\hpotdd01.exe
C:\WINDOWS\system32\RunDLL32.exe
C:\WINDOWS\system32\rundll32.exe
C:\Programmi\iTunes\iTunesHelper.exe
C:\Programmi\Java\jre6\bin\jusched.exe
C:\Programmi\Adobe\Photoshop Album Starter Edition\3.0\Apps\apdproxy.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Windows Live\Messenger\msnmsgr.exe
C:\Programmi\File comuni\Ahead\Lib\NMBgMonitor.exe
C:\Programmi\Microsoft Encarta\Microsoft Encarta Enciclopedia DVD - 2006\EDICT.EXE
C:\Programmi\HPQ\SHARED\HPQWMI.exe
C:\Programmi\WIDCOMM\Software Bluetooth\BTTray.exe
C:\Programmi\File comuni\Ahead\Lib\NMIndexStoreSvr.exe
E:\Archivio Programmi\NetPerSec\NetPerSec.exe
C:\Programmi\File comuni\PCSuite\Services\ServiceLayer.exe
C:\Programmi\iPod\bin\iPodService.exe
C:\Programmi\File comuni\PCSuite\Services\NclBTHandler.exe
C:\WINDOWS\system32\wbem\wmiapsrv.exe
C:\Programmi\Windows Live\Contacts\wlcomm.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\Microsoft Office\Office12\OUTLOOK.EXE
C:\Programmi\Mozilla Firefox\firefox.exe
C:\Programmi\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
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 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\system32\dla\tfswshx.dll
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\Programmi\Microsoft Office\Office12\GrooveShellExtensions.dll
O2 - BHO: Guida per l'accesso a Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Programmi\File comuni\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre6\bin\jp2ssv.dll
O2 - BHO: HP Credential Manager for ProtectTools - {DF21F1DB-80C6-11D3-9483-B03D0EC10000} - C:\Programmi\HPQ\IAM\Bin\ItIeAddIN.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Programmi\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O4 - HKLM\..\Run: [SoundMAXPnP] C:\Programmi\Analog Devices\SoundMAX\SMax4PNP.exe
O4 - HKLM\..\Run: [AGRSMMSG] AGRSMMSG.exe
O4 - HKLM\..\Run: [SynTPLpr] C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Programmi\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [Cpqset] C:\Programmi\HPQ\Default Settings\cpqset.exe
O4 - HKLM\..\Run: [eabconfg.cpl] C:\Programmi\HPQ\Quick Launch Buttons\EabServr.exe /Start
O4 - HKLM\..\Run: [UpdateManager] "C:\Programmi\File comuni\Sonic\Update Manager\sgtray.exe" /r
O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe
O4 - HKLM\..\Run: [hpWirelessAssistant] C:\Programmi\hpq\HP Wireless Assistant\HP Wireless Assistant.exe
O4 - HKLM\..\Run: [CognizanceTS] rundll32.exe C:\PROGRA~1\HPQ\IAM\Bin\AsTsVcc.dll,RegisterModule
O4 - HKLM\..\Run: [CnxDslTaskBar] C:\Programmi\Hamlet HDSL640S USB ADSL Modem\CnxDslTb.exe
O4 - HKLM\..\Run: [AVP] "C:\Programmi\Kaspersky Lab\Kaspersky Internet Security 2009\avp.exe"
O4 - HKLM\..\Run: [SynTPStart] C:\Programmi\Synaptics\SynTP\SynTPStart.exe
O4 - HKLM\..\Run: [ccApp] "C:\Programmi\File comuni\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [Norton Ghost 10.0] "C:\Programmi\Norton Ghost\Agent\GhostTray.exe"
O4 - HKLM\..\Run: [HP Software Update] C:\Programmi\Hewlett-Packard\HP Software Update\HPWuSchd.exe
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] C:\WINDOWS\system32\spool\drivers\w32x86\3\hpztsb08.exe
O4 - HKLM\..\Run: [DeviceDiscovery] C:\Programmi\Hewlett-Packard\Digital Imaging\bin\hpotdd01.exe
O4 - HKLM\..\Run: [PD0630 STISvc] RunDLL32.exe P0630Pin.dll,RunDLL32EP 513
O4 - HKLM\..\Run: [BluetoothAuthenticationAgent] rundll32.exe bthprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [WatchDog] C:\Programmi\InterVideo\DVD Check\DVDCheck.exe
O4 - HKLM\..\Run: [iTunesHelper] "C:\Programmi\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [PCSuiteTrayApplication] C:\PROGRA~1\Nokia\NOKIAP~1\LAUNCH~1.EXE -startup
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [Adobe Photo Downloader] "C:\Programmi\Adobe\Photoshop Album Starter Edition\3.0\Apps\apdproxy.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Programmi\Windows Live\Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Programmi\File comuni\Ahead\Lib\NMBgMonitor.exe"
O4 - HKCU\..\Run: [E06IXLRD_41751421] "C:\Programmi\Microsoft Encarta\Microsoft Encarta Enciclopedia DVD - 2006\EDICT.EXE" -m
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - Startup: Microsoft Office Outlook.lnk = C:\Programmi\Microsoft Office\Office12\OUTLOOK.EXE
O4 - Startup: NetPerSec.lnk = E:\Archivio Programmi\NetPerSec\NetPerSec.exe
O4 - Startup: SpeedFan.lnk = C:\Programmi\SpeedFan\speedfan.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Programmi\File comuni\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: BTTray.lnk = ?
O4 - Global Startup: DVD Check.lnk = C:\Programmi\InterVideo\DVD Check\DVDCheck.exe
O8 - Extra context menu item: Aggiungi al banner Blocco pubblicità - C:\Programmi\Kaspersky Lab\Kaspersky Internet Security 2009\ie_banner_deny.htm
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~3\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Invia a &Bluetooth - C:\Programmi\WIDCOMM\Software Bluetooth\btsendto_ie_ctx.htm
O9 - Extra button: Statistiche sulla protezione del traffico Web - {1F460357-8A94-4D71-9CA3-AA4ACF32ED8E} - C:\Programmi\Kaspersky Lab\Kaspersky Internet Security 2009\SCIEPlgn.dll
O9 - Extra button: Invia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~3\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: I&nvia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~3\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\Office12\REFIEBAR.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: (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
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/SharedContent/vc/bin/AvSniff.cab
O16 - DPF: {60E33102-59F1-44DA-BA3D-494BB9A80514} (Iphona) - http://www.inps.it/Servizi/ParlaConNoi/VoipFiles/IPhona.cab
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\Programmi\Microsoft Office\Office12\GrooveSystemServices.dll
O20 - Winlogon Notify: OneCard - C:\Programmi\HPQ\IAM\Bin\AsWlnPkg.dll
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Programmi\File comuni\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Kaspersky Internet Security (AVP) - Kaspersky Lab - C:\Programmi\Kaspersky Lab\Kaspersky Internet Security 2009\avp.exe
O23 - Service: Bonjour Service - Apple Inc. - C:\Programmi\Bonjour\mDNSResponder.exe
O23 - Service: Bluetooth Service (btwdins) - Broadcom Corporation. - C:\Programmi\WIDCOMM\Software Bluetooth\bin\btwdins.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: CSIScanner - Prevx - C:\Programmi\Prevx\prevx.exe
O23 - Service: GEARSecurity - GEAR Software - C:\WINDOWS\System32\GEARSec.exe
O23 - Service: HP WMI Interface (hpqwmi) - Hewlett-Packard Development Company, L.P. - C:\Programmi\HPQ\SHARED\HPQWMI.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programmi\File comuni\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: Servizio iPod (iPod Service) - Apple Inc. - C:\Programmi\iPod\bin\iPodService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Programmi\Java\jre6\bin\jqs.exe
O23 - Service: NBService - Nero AG - C:\Programmi\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: Norton Ghost - Symantec Corporation - C:\Programmi\Norton Ghost\Agent\VProSvc.exe
O23 - Service: ServiceLayer - Nokia. - C:\Programmi\File comuni\PCSuite\Services\ServiceLayer.exe
O23 - Service: SoundMAX Agent Service (SoundMAX Agent Service (default)) - Analog Devices, Inc. - C:\Programmi\Analog Devices\SoundMAX\SMAgent.exe
O23 - Service: Symantec Core LC - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\CCPD-LC\symlcsvc.exe
O23 - Service: WTGService - Unknown owner - C:\Programmi\WINDEasyConnect\WTGService.exe

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End of file - 12715 bytesr.exe

E' tutto a posto, la faccenda di Kaspersky non mi è chiara, ma non mi farei prendere dalla paranoia,anche perchè usi uno dei migliori Antivirus in circolazione.

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Ciao,puo' capitare(con KASPERSKY raramente) che l'euristica rileva un virus,che in realta'e un falso positivo,kaspersky mette il presunto virus in quarantena,ma al prossimo aggiornamento( scansiona anche la quarantena) se si tratta di falso positivo il file viene ripristinato.