Nel desktop come sfondo c'è un link enorme che mi dice che sono infettato da uno spyware e si è installato un programma (alfacleaner) che si spaccia come antispyware.
Grazie.

Logfile of HijackThis v1.99.1
Scan saved at 0.50.33, on 24/02/2006
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\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\File comuni\Symantec Shared\ccSetMgr.exe
C:\Programmi\File comuni\Symantec Shared\SNDSrvc.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\File comuni\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\Programmi\File comuni\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\System32\Ati2evxx.exe
C:\Programmi\Executive Software\DiskeeperLite\DKService.exe
C:\Programmi\Norton AntiVirus\navapsvc.exe
C:\Programmi\Norton AntiVirus\IWP\NPFMntor.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\File comuni\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\Programmi\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
C:\WINDOWS\LTSMMSG.exe
C:\Programmi\Java\j2re1.4.2_02\bin\jusched.exe
C:\Programmi\File comuni\Symantec Shared\ccApp.exe
C:\Programmi\iTunes\iTunesHelper.exe
C:\Programmi\QuickTime\qttask.exe
C:\Programmi\File comuni\Real\Update_OB\realsched.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\iPod\bin\iPodService.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\Internet Explorer\iexplore.exe
C:\Programmi\MSN Messenger\msnmsgr.exe
C:\DOCUME~1\user\IMPOST~1\Temp\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.it/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 127.0.0.1
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.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
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Programmi\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [SiSUSBRG] C:\WINDOWS\SiSUSBrg.exe
O4 - HKLM\..\Run: [SynTPLpr] C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [LTSMMSG] LTSMMSG.exe
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Programmi\Java\j2re1.4.2_02\bin\jusched.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: [iTunesHelper] "C:\Programmi\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [TkBellExe] "C:\Programmi\File comuni\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [AlfaCleaner] C:\Programmi\AlfaCleaner\AlfaCleaner.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O8 - Extra context menu item: &Google Search - res://c:\programmi\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: &Translate English Word - res://c:\programmi\google\GoogleToolbar2.dll/cmwordtrans.html
O8 - Extra context menu item: Backward Links - res://c:\programmi\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Cached Snapshot of Page - res://c:\programmi\google\GoogleToolbar2.dll/cmcache.html
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Similar Pages - res://c:\programmi\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: Translate Page into English - res://c:\programmi\google\GoogleToolbar2.dll/cmtrans.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\system32\msjava.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\system32\msjava.dll
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\WINDOWS\System32\shdocvw.dll
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\WINDOWS\System32\shdocvw.dll
O12 - Plugin for .spop: C:\Programmi\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: {7F8B2500-3B5D-474C-B828-C766ECE3AB3C} (ATLmosquito1 Class) - http://fax.tiscali.it/netphone/ocx/mosquito.cab
O16 - DPF: {86A88967-7A20-11D2-8EDA-00600818EDB1} (ParallelGraphics Cortona Control) - http://www.parallelgraphics.com/bin/cortvrml.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDownloader.cab
O16 - DPF: {CA11EB7C-1C85-4577-8A49-9E28EFB30184} (UMediaPlayer Class) - http://www.umediaserver.net/bin/UMediaControl4.cab
O16 - DPF: {F291EA43-2961-4EBC-9E31-6D433483EFE0} - file://D:\DriverCD\Bilder\Fahnen\Normal\123\produkt.ocx
O17 - HKLM\System\CCS\Services\Tcpip\..\{1D49393C-41F1-4078-9B6D-CE46BBA3D456}: NameServer = 193.70.192.25,193.70.152.25
O17 - HKLM\System\CS1\Services\Tcpip\..\{1D49393C-41F1-4078-9B6D-CE46BBA3D456}: NameServer = 193.70.192.25,193.70.152.25
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.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: Diskeeper - Executive Software International, Inc. - C:\Programmi\Executive Software\DiskeeperLite\DKService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programmi\File comuni\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: iPodService - Apple Computer, Inc. - C:\Programmi\iPod\bin\iPodService.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: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.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

Ciao ,
esegui queste operazioni

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

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.

==================================
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 127.0.0.1
-
O4 - HKLM\..\Run: [AlfaCleaner] C:\Programmi\AlfaCleaner\AlfaCleaner.exe
-
O16 - DPF: {7F8B2500-3B5D-474C-B828-C766ECE3AB3C} (ATLmosquito1 Class) - http://fax.tiscali.it/netphone/ocx/mosquito.cab
O16 - DPF: {86A88967-7A20-11D2-8EDA-00600818EDB1} (ParallelGraphics Cortona Control) - http://www.parallelgraphics.com/bin/cortvrml.cab
-
O16 - DPF: {CA11EB7C-1C85-4577-8A49-9E28EFB30184} (UMediaPlayer Class) - http://www.umediaserver.net/bin/UMediaControl4.cab
O16 - DPF: {F291EA43-2961-4EBC-9E31-6D433483EFE0} - file://D:\DriverCD\Bilder\Fahnen\Normal\123\produkt.ocx
O17 - HKLM\System\CCS\Services\Tcpip\..\{1D49393C-41F1-4078-9B6D-CE46BBA3D456}: NameServer = 193.70.192.25,193.70.152.25
O17 - HKLM\System\CS1\Services\Tcpip\..\{1D49393C-41F1-4078-9B6D-CE46BBA3D456}: NameServer = 193.70.192.25,193.70.152.25
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
==================================

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

Fai una scansione con questo programma
http://www.aiutamici.com/software/view.asp?tipo=home&CodSw=1286

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 e crea un nuovo punto di ripristino, leggi qui alla voce 8
http://www.aiutamici.com/software/view.asp?tipo=home&CodSw=170&SH=N


Per eliminare il link sul desktop
vai a PANNELLO DI CONTROLLO - SCHERMO - DEKTOP - PERSONALIZZA DESKTOP - WEB - qui togli le spunte a tutte le caselle e dai ok

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Collaboratore Aiutamici

Inserisci nuovamente il log, da fare in avvio normale e non in modalità provvisoria.

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Collaboratore Aiutamici

Il log ora é pulito

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Collaboratore Aiutamici