Questo è il log estratto con Hijackthis...
Ogni volta che accendo il computer,l'antivirus mi segnala questo virus MC21.TMP (lo elimino o sposto in quarantena ma non serve a nulla, ogni volta riappare)
Logfile of HijackThis v1.99.1
Scan saved at 11.54.46, on 16/07/2005
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\csrss.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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\Netropa\Multimedia Keyboard\nhksrv.exe
C:\Programmi\AVPersonal\AVGUARD.EXE
C:\Programmi\AVPersonal\AVWUPSRV.EXE
C:\WINDOWS\system32\svchost.exe
C:\Programmi\File comuni\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\system32\nvsvc32.exe
C:\Programmi\Analog Devices\SoundMAX\SMAgent.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\wdfmgr.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\system32\rundll32.exe
C:\Programmi\Netropa\Multimedia Keyboard\MMKeybd.exe
C:\Programmi\QuickTime\qttask.exe
C:\WINDOWS\Mixer.exe
C:\Programmi\File comuni\Real\Update_OB\realsched.exe
C:\Programmi\Hotbar\Bin\4.6.1.0\HbOEAddOn.exe
C:\Programmi\Roland\VSC32\vsc32cnf.exe
C:\Programmi\Roland\VSC32\vscvol.exe
C:\Programmi\AVPersonal\AVGNT.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Spyware Doctor\swdoctor.exe
C:\Programmi\Adobe\Acrobat 7.0\Reader\reader_sl.exe
C:\Programmi\Nokia\PC Suite for Nokia 6600\connmngmntbox.exe
C:\Programmi\Nokia\PC Suite for Nokia 6600\ectaskscheduler.exe
C:\PROGRA~1\Nokia\PCSUIT~1\Elogerr.exe
C:\Programmi\Intuwave\Shared\mRouterRunTime\mRouterRuntime.exe
C:\Programmi\Netropa\Multimedia Keyboard\TrayMon.exe
C:\Programmi\Netropa\Onscreen Display\OSD.exe
C:\PROGRA~1\Nokia\PCSUIT~1\BROADC~1.EXE
C:\PROGRA~1\Nokia\PCSUIT~1\SCRFS.exe
C:\WINDOWS\System32\alg.exe
C:\Documents and Settings\Marco\Desktop\HijackThis.exe
C:\WINDOWS\system32\wuauclt.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.virgilio.it/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.cheapnet.it/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: PCTools Site Guard - {5C8B2A36-3DB1-42A4-A3CB-D426709BBFEB} - C:\PROGRA~1\SPYWAR~1\tools\iesdsg.dll
O2 - BHO: Hotbar - {B195B3B3-8A05-11D3-97A4-0004ACA6948E} - C:\Programmi\Hotbar\Bin\4.6.1.0\HbHostIE.dll
O2 - BHO: PCTools Browser Monitor - {B56A7D7D-6927-48C8-A975-17DF180C71AC} - C:\PROGRA~1\SPYWAR~1\tools\iesdpb.dll
O3 - Toolbar: Hotbar - {B195B3B3-8A05-11D3-97A4-0004ACA6948E} - C:\Programmi\Hotbar\Bin\4.6.1.0\HbHostIE.dll
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
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: [BluetoothAuthenticationAgent] rundll32.exe bthprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [AdslTaskBar] rundll32.exe stmctrl.dll,TaskBar
O4 - HKLM\..\Run: [MULTIMEDIA KEYBOARD] C:\Programmi\Netropa\Multimedia Keyboard\MMKeybd.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [C-Media Mixer] Mixer.exe /startup
O4 - HKLM\..\Run: [TkBellExe] "C:\Programmi\File comuni\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [Tweak UI] RUNDLL32.EXE TWEAKUI.CPL,TweakMeUp
O4 - HKLM\..\Run: [Hotbar] C:\Programmi\Hotbar\Bin\4.6.1.0\HbOEAddOn.exe
O4 - HKLM\..\Run: [cbciloia] C:\WINDOWS\system32\wzkxrqsz.exe
O4 - HKLM\..\Run: [vsc32cnf.exe] C:\Programmi\Roland\VSC32\vsc32cnf.exe
O4 - HKLM\..\Run: [vscvol.exe] C:\Programmi\Roland\VSC32\vscvol.exe
O4 - HKLM\..\Run: [AVGCtrl] "C:\Programmi\AVPersonal\AVGNT.EXE" /min
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Spyware Doctor] "C:\Programmi\Spyware Doctor\swdoctor.exe" /Q
O4 - Global Startup: Avvio veloce di Adobe Reader.lnk = C:\Programmi\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: PCSuiteperNokia6600 Detect.lnk = ?
O4 - Global Startup: PCSuiteperNokia6600 TS.lnk = ?
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Spyware Doctor - {2D663D1A-8670-49D9-A1A5-4C56B4E14E84} - C:\PROGRA~1\SPYWAR~1\tools\iesdpb.dll
O12 - Plugin for .mdz: C:\Programmi\Internet Explorer\Plugins\npmod32.dll
O12 - Plugin for .XM: C:\Programmi\Internet Explorer\PLUGINS\npmod32.dll
O14 - IERESET.INF: START_PAGE_URL=http://www.cheapnet.it/
O16 - DPF: {0A5FD7C5-A45C-49FC-ADB5-9952547D5715} (Creative Software AutoUpdate) - http://www.creative.com/su/ocx/15007/CTSUEng.cab
O16 - DPF: {1EDF25DE-DFB2-40CA-AA83-30AE7DA8C203} (FileSharingCtrl Class) - http://appdirectory.messenger.msn.com/AppDirectory/P4Apps/FileSharing/it/filesharingctrl.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClient.cab31267.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDownloader.cab
O16 - DPF: {F6ACF75C-C32C-447B-9BEF-46B766368D29} (Creative Software AutoUpdate Support Package) - http://www.creative.com/su/ocx/15008/CTPID.cab
O16 - DPF: {F6BF0D00-0B2A-4A75-BF7B-F385591623AF} (Solitaire Showdown Class) - http://messenger.zone.msn.com/binary/SolitaireShowdown.cab31267.cab
O23 - Service: AntiVir Service (AntiVirService) - H+BEDV Datentechnik GmbH - C:\Programmi\AVPersonal\AVGUARD.EXE
O23 - Service: AntiVir Update (AVWUpSrv) - H+BEDV Datentechnik GmbH, Germany - C:\Programmi\AVPersonal\AVWUPSRV.EXE
O23 - Service: Netropa NHK Server (nhksrv) - Unknown owner - C:\Programmi\Netropa\Multimedia Keyboard\nhksrv.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: SoundMAX Agent Service (SoundMAX Agent Service (default)) - Analog Devices, Inc. - C:\Programmi\Analog Devices\SoundMAX\SMAgent.exe

Ciao ,
esegui queste operazioni

1) Disattiva il ripristino di configurazione, leggi qui come fare
http://www.aiutamici.com/software/view.asp?tipo=home&CodSw=257&SH=N

2) riavvia in modalità provvisoria, leggi qui come fare
http://www.aiutamici.com/software/view.asp?tipo=home&CodSw=344&SH=N

apri HIJAC THIS ed elimina come indicato in questo articolo
http://www.aiutamici.com/software/descrizione.asp?CodSw=1175
le righe che seguono, (nel caso le righe da eliminare non compaiono in modalità provvisoria, eliminale dalla modalità normale e riavvia il computer).

==================================
O2 - BHO: Hotbar - {B195B3B3-8A05-11D3-97A4-0004ACA6948E} - C:\Programmi\Hotbar\Bin\4.6.1.0\HbHostIE.dll
-
O3 - Toolbar: Hotbar - {B195B3B3-8A05-11D3-97A4-0004ACA6948E} - C:\Programmi\Hotbar\Bin\4.6.1.0\HbHostIE.dll
-
O4 - HKLM\..\Run: [Hotbar] C:\Programmi\Hotbar\Bin\4.6.1.0\HbOEAddOn.exe
O4 - HKLM\..\Run: [cbciloia] C:\WINDOWS\system32\wzkxrqsz.exe
==================================

Con la funzione TROVA di Windows, cerca ed elimina questi file,

==================================
HbHostIE.dll
HbOEAddOn.exe
wzkxrqsz.exe
==================================

ELIMINA LA CARTELLA IN ROSSO
C:\Programmi\<font color=red><b>Hotbar</font id=red></b>


Vai a PANNELLO DI CONTROLLO e clicca su OPZIONI INTERNET
nella finestra che si apre clicca i tre pulsanti
ELIMINA COOKIES - ELIMINA FILE - CANCELLA CRONOOLOGIA


al termine utilizza i programmi AD-AWARE e SPYBOT indicati in questo articolo
http://www.aiutamici.com/software/view.asp?tipo=home&CodSw=388&SH=N

sempre in modalità provvisoria fai una scansione Antivirus

quindi riavvia il computer e controlla se il problema e risolto, se e tutto OK riattiva il ripristino configurazione disattivato all'inizio di questa procedura.


Nel sistema manca un programma Firewall, installa questo
http://www.aiutamici.com/software/view.asp?tipo=home&CodSw=56

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Collaboratore Aiutamici