Vorrei levarmi dalle scatole un programma-filtro (ICRA)di cui non ricorco la password e che combinato con Mozilla mi blocca praticamente tutto (anche il vostro sito!), ma se cancello manualmente mi blocca explorer.exe ...
se può servire allego:
Logfile of HijackThis v1.99.1
Scan saved at 19.25.37, on 04/02/2006
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:\WINDOWS\system32\spoolsv.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
C:\WINDOWS\system32\cisvc.exe
C:\Programmi\ICRAplus\ICRAplus\ICRAplus.exe
C:\Programmi\ICRAplus\ICRAplus\InternetProxy.exe
C:\Programmi\File comuni\Microsoft Shared\VS7Debug\mdm.exe
C:\WINDOWS\System32\snmp.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\fxssvc.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\WINDOWS\AGRSMMSG.exe
C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
C:\Programmi\Hewlett-Packard\HP Software Update\HPWuSchd.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\cidaemon.exe
C:\Programmi\Spybot - Search & Destroy\TeaTimer.exe
C:\Programmi\Spybot - Search & Destroy\SpybotSD.exe
C:\Programmi\Mozilla Firefox\firefox.exe
C:\Programmi\Microsoft Money\System\MSMONEY.EXE
C:\Documents and Settings\Davide\Desktop\hijackthis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://global.acer.com
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: DgnWebIE - {2843DAC1-05EF-11D2-95BA-0060083493D6} - C:\Programmi\Dragon Systems\NaturallySpeaking\Program\web_ie.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O4 - HKLM\..\Run: [LaunchApp] Alaunch
O4 - HKLM\..\Run: [VTTimer] VTTimer.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.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: [HP Software Update] C:\Programmi\Hewlett-Packard\HP Software Update\HPWuSchd.exe
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\system32\\NeroCheck.exe
O4 - HKLM\..\Run: [Logitech Utility] Logi_MwX.Exe
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Programmi\Spybot - Search & Destroy\TeaTimer.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Programmi\File comuni\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Avvio veloce di Adobe Reader.lnk = C:\Programmi\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Programmi\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: &eBay Search - res://C:\Programmi\eBay\eBay Toolbar2\eBayTb.dll/RCSearch.html
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O16 - DPF: {11111111-1111-1111-1111-111191113457} - file://c:\ied_s7.cab
O16 - DPF: {11111111-1111-1111-1111-511111193457} - file://c:\x.cab
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/SharedContent/vc/bin/AvSniff.cab
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1128774271839
O17 - HKLM\System\CCS\Services\Tcpip\..\{12B1ABB6-0F39-4775-983D-1E7444CEE2B1}: NameServer = 193.70.152.15 193.70.152.25
O17 - HKLM\System\CS1\Services\Tcpip\..\{12B1ABB6-0F39-4775-983D-1E7444CEE2B1}: NameServer = 193.70.152.15 193.70.152.25
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O23 - Service: Adobe LM Service - Unknown owner - C:\Programmi\File comuni\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
O23 - Service: ICRAplus - OPTENET - C:\Programmi\ICRAplus\ICRAplus\ICRAplus.exe
O23 - Service: Internet Proxy - Unknown owner - C:\Programmi\ICRAplus\ICRAplus\InternetProxy.exe

Ciao, non conosco quel programma, se si é integrato con il sistema forse non potrai rimuoverlo, ti dico come agire ma non mi prendo alcuna responsabilità se l'operazione non riesce

pertanto crea un punto di ripristino, cosi se non funziona puoi tornare al sistema come é ora, per creare un punto di ripristino, leggi qui alla voce 8
http://www.aiutamici.com/software/view.asp?tipo=home&CodSw=170&SH=N

quindi esegui queste operazioni

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.

==================================
O16 - DPF: {11111111-1111-1111-1111-111191113457} - file://c:\ied_s7.cab
O16 - DPF: {11111111-1111-1111-1111-511111193457} - file://c:\x.cab
-
O17 - HKLM\System\CCS\Services\Tcpip\..\{12B1ABB6-0F39-4775-983D-1E7444CEE2B1}: NameServer = 193.70.152.15 193.70.152.25
O17 - HKLM\System\CS1\Services\Tcpip\..\{12B1ABB6-0F39-4775-983D-1E7444CEE2B1}: NameServer = 193.70.152.15 193.70.152.25
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
-
O23 - Service: ICRAplus - OPTENET - C:\Programmi\ICRAplus\ICRAplus\ICRAplus.exe
O23 - Service: Internet Proxy - Unknown owner - C:\Programmi\ICRAplus\ICRAplus\InternetProxy.exe
==================================

Con la funzione CERCA di Windows, cerca ed elimina questi file,
==================================
ied_s7.cab
x.cab
ICRAplus.exe
InternetProxy.exe
==================================


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

Nel sistema non é presente un Firewall, installa questo
http://www.aiutamici.com/software/view.asp?tipo=home&CodSw=56
e disattiva l'inutile firewall di XP, leggi qui
http://www.aiutamici.com/software/view.asp?tipo=home&CodSw=160&SH=N

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Collaboratore Aiutamici