Salve a tutti... scusate per gli eventuali errori o incomprensioni ma è il primo mio post...allora parto dall'inizio il mio pc è reduce di uno scontro con un virus(causa padre in conflitto con l antivirus ) che mi ha costretto ad un bel formattone , adesso ho windows xp col service pack 2 poichè il 3 mi causa una perdita dei temi di windows. Nonostante il nuovo sistema opertivo, all'avvio explorer non si vuole decidere a partite, ho letto un pò i vari post precedenti e non sembra essere ne un problema di chiave mancante o errata nel registro, ne il mio caro avast riesce a dirmi se si tratta di un virus...unico appunto ke vi posso dare, all'accensione nel task manager non è presente explorer ma sono presenti 4 o più processi svchost.exe, inoltre controllando il visualizzatore eventi ho notato un paio di errori all'apertura del sistema dovuti a userinit.exe, di cui ho già controllato la chiave nel registro e sembra essere apposto, e spoolsv.exe. Altra nota da ieri l'antivirus mi segnali dei virus worm tutti analoghi del genere VRT4.tmp o VRT99.tmp oppure VRTE.tmp o ancora VRTA.tmp e non so ancora quanti altri ne spunteranno....ho eseguito altri test sia online con Kaspersky oppure offline con programmi del genere di Malwarebytes' Anti-Malware, di cui vi posto il log


Malwarebytes' Anti-Malware 1.40
Versione del database: 2551
Windows 5.1.2600 Service Pack 2

31/08/2009 15.59.05
mbam-log-2009-08-31 (15-59-05).txt

Tipo di scansione: Scansione completa (C:\|D:\|)
Elementi scansionati: 142062
Tempo trascorso: 36 minute(s), 56 second(s)

Processi delle memoria infetti: 0
Moduli della memoria infetti: 0
Chiavi di registro infette: 0
Valori di registro infetti: 4
Elementi dato del registro infetti: 0
Cartelle infette: 0
File infetti: 6

Processi delle memoria infetti:
(Nessun elemento malevolo rilevato)

Moduli della memoria infetti:
(Nessun elemento malevolo rilevato)

Chiavi di registro infette:
(Nessun elemento malevolo rilevato)

Valori di registro infetti:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\FirstIn stallFlag (Malware.Trace) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\guid (Malware.Trace) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\uid (Malware.Trace) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\UpdateN ew (Malware.Trace) -> Quarantined and deleted successfully.

Elementi dato del registro infetti:
(Nessun elemento malevolo rilevato)

Cartelle infette:
(Nessun elemento malevolo rilevato)

File infetti:
C:\WINDOWS\system32\EvdoServer.dll (Backdoor.Bot) -> Quarantined and deleted successfully.
C:\WINDOWS\Temp\3887,838.exe (Trojan.Downloader) -> Quarantined and deleted successfully.
C:\WINDOWS\Temp\VRT4.tmp (Backdoor.Bot) -> Quarantined and deleted successfully.
D:\System Volume Information\_restore{F6A91500-CF8B-4568-9B93-791D07C40D50}\RP40\A0013470.exe (Trojan.Downloader) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\FInstall.sys (Backdoor.Bot) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\wiawow32.sys (Backdoor.Bot) -> Quarantined and deleted successfully.

ho anche fatto una scansione con HijackThis


Logfile of HijackThis v1.99.1
Scan saved at 14.39.10, on 31/08/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16876)

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:\Programmi\Alwil Software\Avast4\aswUpdSv.exe
C:\Programmi\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\ATKKBService.exe
C:\Programmi\Telecom Italia\WanMiniport1st\srvany.exe
C:\Programmi\Telecom Italia\WanMiniport1st\WanMiniport1st_srv.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Programmi\Alwil Software\Avast4\ashMaiSv.exe
C:\Programmi\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\explorer.exe
C:\Programmi\Java\jre1.6.0_03\bin\jusched.exe
C:\WINDOWS\RTHDCPL.EXE
D:\Office\Office12\GrooveMonitor.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\PROGRA~1\ALICET~1\SMARTB~1\MotiveSB.exe
C:\PROGRA~1\ALICET~1\vendors\AliceRE\content\templ ate\DRIVEN~1\syncer\MCCITR~1.EXE
C:\WINDOWS\system32\ctfmon.exe
D:\Spybot - Search & Destroy\Spybot - Search & Destroy\TeaTimer.exe
C:\Programmi\Stardock\ObjectDock\ObjectDock.exe
C:\Programmi\Windows Media Player\wmplayer.exe
D:\Firefox(2)\firefox.exe
C:\Programmi\Alice ti aiuta\vendors\AliceRE\content\template\driven_dev\ syncer\McciBrowser.exe
C:\Programmi\Alice ti aiuta\vendors\AliceRE\content\template\driven_dev\ syncer\McciBrowser.exe
C:\Program Files\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://it.ask.com?o=14978&l=dis
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 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://go.microsoft.com/fwlink/?LinkId=74005
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyOverride = 127.0.0.1
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
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: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - D:\Spybot - Search & Destroy\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - D:\Office\Office12\GRA8E1~1.DLL
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre1.6.0_03\bin\ssv.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: Ask Toolbar BHO - {D4027C7F-154A-4066-A1AD-4243D8127440} - C:\Programmi\Ask.com\GenericAskToolbar.dll
O3 - Toolbar: Ask Toolbar - {D4027C7F-154A-4066-A1AD-4243D8127440} - C:\Programmi\Ask.com\GenericAskToolbar.dll
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\Java\jre1.6.0_03\bin\jusched.exe "
O4 - HKLM\..\Run: [Media Codec Update Service] C:\Programmi\Essentials Codec Pack\update.exe -silent
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [SkyTel] SkyTel.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [JMB36X Configure] C:\WINDOWS\system32\JMRaidTool.exe boot
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [GrooveMonitor] "D:\Office\Office12\GrooveMonitor.exe"
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
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\templ ate\DRIVEN~1\syncer\MCCITR~1.EXE
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programmi\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [SpybotSD TeaTimer] D:\Spybot - Search & Destroy\Spybot - Search & Destroy\TeaTimer.exe
O4 - Startup: Stardock ObjectDock.lnk = C:\Programmi\Stardock\ObjectDock\ObjectDock.exe
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://D:\Office\Office12\EXCEL.EXE/3000
O9 - Extra button: (no name) - {2670000A-7350-4f3c-8081-5663EE0C6C49} - D:\Office\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - D:\Office\Office12\REFIEBAR.DLL
O9 - Extra button: Barra di ricerca di Encarta - {B205A35E-1FC4-4CE3-818B-899DBBB3388C} - C:\Programmi\File comuni\Microsoft Shared\Encarta Search Bar\ENCSBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - D:\Spybot - Search & Destroy\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search && Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - D:\Spybot - Search & Destroy\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
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
O11 - Options group: [INTERNATIONAL] International*
O11 - Options group: [TABS] Tabbed Browsing
O17 - HKLM\System\CCS\Services\Tcpip\..\{4CD5582A-E58A-43D1-9EA7-32824E4857D6}: NameServer = 85.37.17.39 85.38.28.71
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - D:\Office\Office12\GR99D3~1.DLL
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\WI1F86~1\MESSEN~1\MSGRAP~1.DLL
O18 - Protocol: ms-help - {314111C7-A502-11D2-BBCA-00C04F8EC294} - C:\Programmi\File comuni\Microsoft Shared\Help\hxds.dll
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\WI1F86~1\MESSEN~1\MSGRAP~1.DLL
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FILECO~1\Skype\SKYPE4~1.DLL
O18 - Filter hijack: text/xml - {807563E5-5146-11D5-A672-00B0D022E945} - C:\PROGRA~1\FILECO~1\MICROS~1\OFFICE12\MSOXMLMF.DL L
O20 - Winlogon Notify: klogon - C:\WINDOWS\system32\klogon.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\wpdshserviceobj.dll
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Programmi\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: ATK Keyboard Service (ATKKeyboardService) - ASUSTeK COMPUTER INC. - C:\WINDOWS\ATKKBService.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Programmi\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Programmi\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Programmi\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: Network WanMiniport First Position - Unknown owner - C:\Programmi\Telecom Italia\WanMiniport1st\srvany.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe

ho anche tentato di effettuare una scansione con System Scan ma invano, windows non la riconosce come un applicazione di Win32 valida.

quindi, mi affido a voi! grazie di tutto in anticipo