il mio antivirus kasperky 6 mi ha rilevato un riskware invader nella cartella c:windows/system/smssv.exe. Sono riuscito a cencellare il file ad eliminare le traccie nel registro ma nonostante ciò l'antivirus mi ripropone che ha rilevato un riskware invader nella cartella c:windows/system/smssv.exe. Come posso fare? Inoltre a volte quando entro in internet o entro in qualche cartella manca la parte descrittiva (si vede il simbolo, l'immagine o l'icona della cartella ma manca la parte descrittiva). Questo può essere considerato legato a quanto sopra? Aiutatemi grazie

Prova ad aggiornare antivirus manualmente adesso, riavvia il PC e verifichi se il problema di mancanza della parte descrittiva si presenta ancora.
Grazie

Ciao, scarica HijackThis! da qui, al momento dello scaricamento del file, quando ti verrà chiesta la destinazione, scegli di salvarlo sul desktop con un nome diverso da HiJackThis.exe, ad esempio 1234.exe. Avvia 1234.exe, scegli "Do a system scan and save a logfile". Copia il contenuto del file hijackthis.log in un nuovo post oppure inviamelo con un messaggio privato.

Ho fatto come mi hai detto e questo è il risultato:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 20.59.43, on 21/04/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16640)
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\File comuni\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Programmi\Kaspersky Lab\Kaspersky Internet Security 6.0\avp.exe
C:\Programmi\File comuni\EPSON\EBAPI\SAgent2.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\Google\Common\Google Updater\GoogleUpdaterService.exe
C:\Programmi\File comuni\LightScribe\LSSrvc.exe
C:\Programmi\Nero\Nero8\Nero BackItUp\NBService.exe
C:\Programmi\Telecom Italia\WanMiniport1st\srvany.exe
C:\Programmi\Telecom Italia\WanMiniport1st\WanMiniport1st_srv.exe
C:\WINDOWS\system32\IoctlSvc.exe
C:\Programmi\Cyberlink\Shared files\RichVideo.exe
C:\WINDOWS\system32\slserv.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\UTSCSI.EXE
C:\Programmi\Java\jre1.6.0_05\bin\jusched.exe
C:\ATI-CPanel\atiptaxx.exe
C:\WINDOWS\SOUNDMAN.EXE
K:\programmi_vari\CyberLink\PowerDVD\PDVDServ.exe
K:\programmi_vari\nokia\Nokia PC Suite 6\LaunchApplication.exe
C:\PROGRA~1\ALICET~1\SMARTB~1\MotiveSB.exe
C:\PROGRA~1\ALICET~1\vendors\AliceRE\content\template\driven_dev\syncer\McciTrayApp.exe
C:\Programmi\Kaspersky Lab\Kaspersky Internet Security 6.0\avp.exe
K:\programmi_vari\itunes\iTunesHelper.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Messenger\msmsgs.exe
C:\Programmi\PC Connectivity Solution\ServiceLayer.exe
C:\Programmi\File comuni\LightScribe\LightScribeControlPanel.exe
C:\Programmi\Google\Google Updater\GoogleUpdater.exe
C:\Programmi\iPod\bin\iPodService.exe
C:\Programmi\Sitecom\Sitecom WL-171 Wireless LAN Card\Installer\WLANUTL.exe
C:\Programmi\Alice ti aiuta\bin\mpbtn.exe
D:\emule\emule.exe
C:\PROGRA~1\Motive\ASSTCO~1\MOTIVE~1.EXE
C:\Programmi\Alice ti aiuta\bin\mad.exe
C:\Programmi\Kaspersky Lab\Kaspersky Internet Security 6.0\avp.exe
C:\Programmi\Internet Explorer\IEXPLORE.EXE
C:\Programmi\Internet Explorer\IEXPLORE.EXE
C:\Programmi\Internet Explorer\IEXPLORE.EXE
C:\Documents and Settings\MAURO V\Desktop\1234.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.alice.it/
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
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 127.0.0.1
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - URLSearchHook: Yahoo! Toolbar con blocco Pop-Up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Supporto di collegamento per Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre1.6.0_05\bin\ssv.dll
O2 - BHO: Mario Forever Toolbar Helper - {A20854FD-DDB5-4931-8F76-D11EA2364D94} - C:\Programmi\Mario Forever Toolbar\v3.2.0.0\MarioForever_Toolbar.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar2.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Programmi\Google\GoogleToolbarNotifier\2.1.615.5858\swg.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar2.dll
O3 - Toolbar: Yahoo! Toolbar con blocco Pop-Up - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: Mario Forever Toolbar - {71B6ACF7-4F0F-4FD8-BB69-6D1A4D271CB7} - C:\Programmi\Mario Forever Toolbar\v3.2.0.0\MarioForever_Toolbar.dll
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\Java\jre1.6.0_05\bin\jusched.exe"
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [ATIPTA] C:\ATI-CPanel\atiptaxx.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [RemoteControl] K:\programmi_vari\CyberLink\PowerDVD\PDVDServ.exe
O4 - HKLM\..\Run: [LanguageShortcut] K:\programmi_vari\CyberLink\PowerDVD\Language\Language.exe
O4 - HKLM\..\Run: [NBKeyScan] "C:\Programmi\Nero\Nero8\Nero BackItUp\NBKeyScan.exe"
O4 - HKLM\..\Run: [PCSuiteTrayApplication] K:\programmi_vari\nokia\Nokia PC Suite 6\LaunchApplication.exe -startup
O4 - HKLM\..\Run: [Motive SmartBridge] C:\PROGRA~1\ALICET~1\SMARTB~1\MotiveSB.exe
O4 - HKLM\..\Run: [AliceRE_McciTrayApp] C:\PROGRA~1\ALICET~1\vendors\AliceRE\content\template\driven_dev\syncer\McciTrayApp.exe
O4 - HKLM\..\Run: [AVP] "C:\Programmi\Kaspersky Lab\Kaspersky Internet Security 6.0\avp.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "K:\programmi_vari\itunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programmi\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Programmi\File comuni\Nero\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [AnyDVD] C:\DOCUME~1\MAUROV~1\IMPOST~1\Temp\Rar$EX01.516\AnyDVD.v6.2.0.1-RES-crk\Crack\AnyDVD.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Programmi\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [swg] C:\Programmi\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Programmi\File comuni\Nero\Lib\NMBgMonitor.exe"
O4 - HKCU\..\Run: [LightScribe Control Panel] C:\Programmi\File comuni\LightScribe\LightScribeControlPanel.exe -hidden
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVIZIO DI RETE')
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 - Global Startup: Alice ti aiuta.lnk = C:\Programmi\Alice ti aiuta\bin\matcli.exe
O4 - Global Startup: Google Updater.lnk = C:\Programmi\Google\Google Updater\GoogleUpdater.exe
O4 - Global Startup: Microsoft Office.lnk = K:\programmi_vari\Office10\OSA.EXE
O4 - Global Startup: Sitecom Wireless Utility.lnk = C:\Programmi\Sitecom\Sitecom WL-171 Wireless LAN Card\Installer\WLANUTL.exe
O8 - Extra context menu item: Add to AMV Convert Tool... - D:\Programmi_vari\MP3 Player Utilities 4.00\AMVConverter\grab.html
O8 - Extra context menu item: Aggiungi ad Anti-Banner - C:\Programmi\Kaspersky Lab\Kaspersky Internet Security 6.0\ie_banner_deny.htm
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://K:\PROGRA~2\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: MediaManager tool grab multimedia file - D:\Programmi_vari\MP3 Player Utilities 4.00\MediaManager\grab.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra button: Anti-virus web - {1F460357-8A94-4D71-9CA3-AA4ACF32ED8E} - C:\Programmi\Kaspersky Lab\Kaspersky Internet Security 6.0\scieplugin.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: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Programmi\Yahoo!\Common\yinsthelper.dll
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://gfx2.hotmail.com/mail/w2/resources/MSNPUpld.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/windowsupd...b?1196376161934
O16 - DPF: {7FC1B346-83E6-4774-8D20-1A6B09B0E737} (Windows Live Photo Upload Control) - http://cid-b32e43dd8c4db50b.spaces.live.co...ad/MsnPUpld.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - https://fpdownload.macromedia.com/get/shock...ash/swflash.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{AF6198AA-0464-4334-9919-DB2D42119A6E}: NameServer = 85.37.17.44 85.38.28.90
O20 - AppInit_DLLs: C:\PROGRA~1\KASPER~1\KASPER~1.0\adialhk.dll
O23 - Service: Apple Mobile Device - Apple, Inc. - C:\Programmi\File comuni\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: Kaspersky Internet Security 6.0 (AVP) - Kaspersky Lab - C:\Programmi\Kaspersky Lab\Kaspersky Internet Security 6.0\avp.exe
O23 - Service: EPSON Printer Status Agent2 (EPSONStatusAgent2) - SEIKO EPSON CORPORATION - C:\Programmi\File comuni\EPSON\EBAPI\SAgent2.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Programmi\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Servizio iPod (iPod Service) - Apple Inc. - C:\Programmi\iPod\bin\iPodService.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Programmi\File comuni\LightScribe\LSSrvc.exe
O23 - Service: Nero BackItUp Scheduler 3 - Nero AG - C:\Programmi\Nero\Nero8\Nero BackItUp\NBService.exe
O23 - Service: Network WanMiniport First Position - Unknown owner - C:\Programmi\Telecom Italia\WanMiniport1st\srvany.exe
O23 - Service: NMIndexingService - Nero AG - C:\Programmi\File comuni\Nero\Lib\NMIndexingService.exe
O23 - Service: PLFlash DeviceIoControl Service - Prolific Technology Inc. - C:\WINDOWS\system32\IoctlSvc.exe
O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Programmi\Cyberlink\Shared files\RichVideo.exe
O23 - Service: ServiceLayer - Nokia. - C:\Programmi\PC Connectivity Solution\ServiceLayer.exe
O23 - Service: SmartLinkService (SLService) - - C:\WINDOWS\SYSTEM32\slserv.exe
O23 - Service: stllssvr - MicroVision Development, Inc. - C:\Programmi\File comuni\SureThing Shared\stllssvr.exe
O23 - Service: Usbest Service Zero (UTSCSI) - Unknown owner - C:\WINDOWS\system32\UTSCSI.EXE

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End of file - 11299 bytes

Ciao, il log mi sembra pulito, sei sicuro che l'avviso di KAV riguardi il file smssv.exe e non smss.exe? E che la cartella sia C:\Windows\System e non C:\Windows\System32?

La prossima volta che comparirà l'avviso, prima di dare qualsiasi imput, fai click sul link Dettagli, affianca le due finestrelle, cattura un'immagine dello schermo e postala.

In ogni caso ti suggerirei di aggiornare il tuo software alla versione 7.0, l'upgrade è gratuito. Qui troverai tutte le informazioni necessarie.