Ogni qualche ora si disconnette da solo, poi devo ricollegarmi, ho Alice.
Questo è il log.

Logfile of HijackThis v1.99.1
Scan saved at 18.55.46, on 23/08/2006
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\ACS.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\Messenger\msmsgs.exe
C:\Programmi\MessengerPlus! 3\MsgPlus.exe
C:\Programmi\Java\jre1.5.0_06\bin\jusched.exe
C:\Programmi\Hewlett-Packard\HP Software Update\HPWuSchd2.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\WINDOWS\system32\dla\tfswctrl.exe
C:\Programmi\Hewlett-Packard\Digital Imaging\bin\hpqimzone.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\bmwebcfg.exe
C:\Programmi\TOSHIBA\ConfigFree\CFSvcs.exe
C:\WINDOWS\system32\cisvc.exe
C:\Programmi\Executive Software\DiskeeperLite\DKService.exe
C:\WINDOWS\system32\DVDRAMSV.exe
C:\Programmi\Symantec\Norton Ghost\Agent\PQV2iSvc.exe
C:\Programmi\Norton SystemWorks\Norton Utilities\NPROTECT.EXE
C:\WINDOWS\system32\tcpsvcs.exe
C:\Programmi\File comuni\Symantec Shared\SNDSrvc.exe
C:\WINDOWS\System32\snmp.exe
C:\PROGRA~1\NORTON~1\SPEEDD~1\nopdb.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\fxssvc.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\Chami\HTML-Kit\Bin\HTMLKit.exe
C:\WINDOWS\system32\wscntfy.exe
C:\Program Files\WS_FTP\WS_FTP95.exe
C:\Programmi\CountDown\CountDown.exe
C:\Programmi\Outlook Express\msimn.exe
C:\WINDOWS\system32\cidaemon.exe
C:\Programmi\Internet Explorer\iexplore.exe
C:\Documents and Settings\Lupo\Documenti\Archivio\Pgms .exe\HijackThis 1.99.0\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = C:\Programmi\Copernic 2001 Basic\Search Bar.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://safe-surfing-com-net.officialtop-ringtones-programs-mp3-iiiiii.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.virgilio.it/free
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = C:\Programmi\Copernic 2001 Basic\Search Bar.htm
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\system32\dla\tfswshx.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre1.5.0_06\bin\ssv.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar2.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar2.dll
O4 - HKLM\..\Run: [MessengerPlus3] "C:\Programmi\MessengerPlus! 3\MsgPlus.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Programmi\Java\jre1.5.0_06\bin\jusched.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [HP Software Update] C:\Programmi\Hewlett-Packard\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe
O4 - HKCU\..\Run: [updateMgr] "C:\Programmi\Adobe\Acrobat 7.0\Reader\AdobeUpdateManager.exe" AcRdB7_0_8 -reboot 1
O4 - Global Startup: Avvio rapido di HP Image Zone.lnk = C:\Programmi\Hewlett-Packard\Digital Imaging\bin\hpqthb08.exe
O4 - Global Startup: Avvio veloce di Adobe Reader.lnk = C:\Programmi\Adobe\Acrobat 7.0\Reader\reader_sl.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: Ricerca utilizzando Copernic - C:\Programmi\Copernic 2001 Basic\Search Extension.htm
O8 - Extra context menu item: Scarica con Download &Express - C:\Programmi\Download Express\Add_Url.htm
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:\Programmi\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra button: (no name) - {2A465934-E5F0-11D2-91B5-00104B9C4765} - C:\Programmi\Copernic 2001 Basic\Copernic.exe
O9 - Extra 'Tools' menuitem: Avviare Copernic 2001 - {2A465934-E5F0-11D2-91B5-00104B9C4765} - C:\Programmi\Copernic 2001 Basic\Copernic.exe
O9 - Extra button: Copernic - {2A465936-E5F0-11D2-91B5-00104B9C4765} - C:\Programmi\Copernic 2001 Basic\Copernic.exe
O9 - Extra button: Traduci - {99EFB53C-C965-43CF-9F45-52242D134187} - file://C:\Programmi\Copernic 2001 Basic\Translate.htm
O9 - Extra 'Tools' menuitem: &Traduci utilizzando Gist-In-Time - {99EFB53C-C965-43CF-9F45-52242D134187} - file://C:\Programmi\Copernic 2001 Basic\Translate.htm
O9 - Extra button: (no name) - {B205A35E-1FC4-4CE3-818B-899DBBB3388C} - C:\Programmi\File comuni\Microsoft Shared\Encarta Search Bar\ENCSBAR.DLL
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
O14 - IERESET.INF: START_PAGE_URL=http://www.virgilio.it/free
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - http://www.kaspersky.com/kos/english/kavwebscan_unicode.cab
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {1F2F4C9E-6F09-47BC-970D-3C54734667FE} (LSSupCtl Class) - https://www-secure.symantec.com/techsupp/asa/LSSupCtl.cab
O16 - DPF: {4C39376E-FA9D-4349-BACC-D305C1750EF3} (EPUImageControl Class) - http://tools.ebayimg.com/eps/wl/activex/eBay_Enhanced_Picture_Control_v1-0-3-30.cab
O16 - DPF: {4D7F48C0-CB49-4EA6-97D4-04F4EACC2F3B} - http://sib1.od2.com/common/Member/ClientInstall/10.20.0002/OCI/setup.exe
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1127843358281
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoftware.com/activescan/as5free/asinst.cab
O16 - DPF: {AB86CE53-AC9F-449F-9399-D8ABCA09EC09} (Get_ActiveX Control) - https://h17000.www1.hp.com/ewfrf-JAVA/Secure/HPGetDownloadManager.ocx
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDownloader.cab
O16 - DPF: {CE28D5D2-60CF-4C7D-9FE8-0F47A3308078} (ActiveDataInfo Class) - https://www-secure.symantec.com/techsupp/asa/ctrl/SymAData.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{DFF6BE71-01C7-4987-9AEF-DAF42A9B1BDE}: NameServer = 85.37.17.7 151.99.125.1
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O20 - AppInit_DLLs: MsgPlusLoader.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O23 - Service: Atheros Configuration Service (ACS) - Unknown owner - C:\WINDOWS\system32\ACS.exe
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\system32\Ati2evxx.exe (file missing)
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: Bytemobile Web Configurator (bmwebcfg) - Bytemobile, Inc. - C:\WINDOWS\system32\bmwebcfg.exe
O23 - Service: ConfigFree Service (CFSvcs) - TOSHIBA CORPORATION - C:\Programmi\TOSHIBA\ConfigFree\CFSvcs.exe
O23 - Service: Diskeeper - Executive Software International, Inc. - C:\Programmi\Executive Software\DiskeeperLite\DKService.exe
O23 - Service: DVD-RAM_Service - Matsushita Electric Industrial Co., Ltd. - C:\WINDOWS\system32\DVDRAMSV.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programmi\File comuni\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Norton Ghost - Symantec Corporation - C:\Programmi\Symantec\Norton Ghost\Agent\PQV2iSvc.exe
O23 - Service: Norton Unerase Protection (NProtectService) - Symantec Corporation - C:\Programmi\Norton SystemWorks\Norton Utilities\NPROTECT.EXE
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\SNDSrvc.exe
O23 - Service: Speed Disk service - Symantec Corporation - C:\PROGRA~1\NORTON~1\SPEEDD~1\nopdb.exe
O23 - Service: SymWMI Service (SymWSC) - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\Security Center\SymWSC.exe

ciao
il log è pulito ,
per i problemi di connessione , prova ad eseguire WinsockXP Fix-> http://steven.altervista.org/files/utility.html

<BLOCKQUOTE id=quote><font size=1 face="Sans Serif, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>
Io sempre con Alice avev il tuo stesso problema e l'ho risolto mettendo un filtro Adsl a tutte le prese telefoniche!
Ciao
<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Sans Serif, Arial, Helvetica" size=2 id=quote>
Credo di averlo anch'io il filtro, è una scatola quadrata con 3 fori per la spina, ho usato anche i consigli di steven75, ma niente

<BLOCKQUOTE id=quote><font size=1 face="Sans Serif, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>
prova a fare uno scan online BitDefender e postaci il log -> http://steven.altervista.org/files/scan.html
<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Sans Serif, Arial, Helvetica" size=2 id=quote>
Ho fatto una scansione completa col mio antivirus online AVG ha trovato "trojan horse Dialer.BOX" file name avi.exe.

Che mi dici di questo antivirus?