Il problema è:
disconnessione della connessione ADSL e tentativo di riconnessione con numerazione 899
Logfile of HijackThis v1.99.1
Scan saved at 23.17.09, on 07/04/2005
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\SYSTEM\MDM.EXE
C:\PROGRAMMI\FILE COMUNI\EPSON\EBAPI\SAGENT2.EXE
C:\PROGRAMMI\NETWORK ASSOCIATES\VIRUSSCAN\AVSYNMGR.EXE
C:\PROGRAMMI\FILE COMUNI\SYMANTEC SHARED\SYMTRAY.EXE
C:\WINDOWS\RUNSERVICE.EXE
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\PROGRAMMI\NORTON SYSTEMWORKS\NORTON UTILITIES\NPROTECT.EXE
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\SYSTEM\RPCSS.EXE
C:\WINDOWS\SYSTEM\RNAAPP.EXE
C:\WINDOWS\SYSTEM\TAPISRV.EXE
C:\WINDOWS\TASKMON.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\PROGRAMMI\CREATIVE\AUDIO\PROGRAM\CTMIX32.EXE
C:\WINDOWS\SYSTEM\STIMON.EXE
C:\PROGRAMMI\WINAMP\WINAMPA.EXE
C:\PROGRAMMI\CREATIVE\SHAREDLL\CTNOTIFY.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\PROGRAMMI\FILE COMUNI\REAL\UPDATE_OB\REALSCHED.EXE
C:\WINDOWS\LOADQM.EXE
C:\PROGRAM FILES\MSN APPS\UPDATER\01.02.3000.1001\IT\MSNAPPAU.EXE
C:\WINDOWS\SYSTEM\QTTASK.EXE
C:\WINDOWS\RUNDLL32.EXE
C:\PROGRAMMI\SAGEM\SAGEM F@ST 800-840\DSLMON.EXE
D:\PROGRAMMI\CM_CAMERA.EXE
C:\PROGRAMMI\DIGISOFT ANTIDIALER\ANTIDIALER.EXE
C:\WINDOWS\SYSTEM\SPOOL32.EXE
C:\PROGRAMMI\CREATIVE\SHAREDLL\MEDIADET.EXE
C:\PROGRAMMI\NETWORK ASSOCIATES\VIRUSSCAN\VSSTAT.EXE
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\PROGRAMMI\NETWORK ASSOCIATES\VIRUSSCAN\VSHWIN32.EXE
C:\PROGRAMMI\NETWORK ASSOCIATES\VIRUSSCAN\AVCONSOL.EXE
C:\PROGRAMMI\NETWORK ASSOCIATES\VIRUSSCAN\WEBSCANX.EXE
C:\WINDOWS\SYSTEM\WINOA386.MOD
C:\WINDOWS\SYSTEM\WINOA386.MOD
D:\RENATO\RESTANO\ANTI_DIALER\HIJACKTHIS.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://g.msn.it/0SEITIT/SAOS01
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\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 6.0\READER\ACTIVEX\ACROIEHELPER.DLL
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - (no file)
O2 - BHO: MSNToolBandBHO - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\PROGRAM FILES\MSN APPS\MSN TOOLBAR\01.02.4000.1001\IT\MSNTB.DLL
O2 - BHO: ST - {9394EDE7-C8B5-483E-8773-474BF36AF6E4} - C:\PROGRAM FILES\MSN APPS\ST\01.02.3000.1002\EN-XU\STMAIN.DLL
O2 - BHO: URLLink Class - {4A2AACF3-ADF6-11D5-98A9-00E018981B9E} - C:\Programmi\NewDotNet\newdotnet6_38.dll
O2 - BHO: CDllBho Object - {5A5B6916-ED71-4531-8018-E792DD44156E} - C:\WINDOWS\NNX32.DLL
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Programmi\Spybot - Search & Destroy\SDHelper.dll
O3 - Toolbar: (no name) - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - (no file)
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O3 - Toolbar: MSN - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\PROGRAM FILES\MSN APPS\MSN TOOLBAR\01.02.4000.1001\IT\MSNTB.DLL
O4 - HKLM\..\Run: [ScanRegistry] C:\WINDOWS\scanregw.exe /autorun
O4 - HKLM\..\Run: [TaskMonitor] C:\WINDOWS\taskmon.exe
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [CreativeMixer] C:\Programmi\Creative\Audio\PROGRAM\CTMIX32.EXE /t
O4 - HKLM\..\Run: [StillImageMonitor] C:\WINDOWS\SYSTEM\STIMON.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE NvQTwk,NvCplDaemon initialize
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [WinampAgent] C:\Programmi\Winamp\winampa.exe
O4 - HKLM\..\Run: [Disc Detector] C:\Programmi\Creative\ShareDLL\CtNotify.exe
O4 - HKLM\..\Run: [NPROTECT] C:\Programmi\Norton SystemWorks\Norton Utilities\NPROTECT.EXE
O4 - HKLM\..\Run: [TkBellExe] "C:\Programmi\File comuni\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [LoadQM] loadqm.exe
O4 - HKLM\..\Run: [msnappau] "c:\program files\MSN Apps\Updater\01.02.3000.1001\it\msnappau.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\WINDOWS\SYSTEM\QTTASK.EXE" -atboottime
O4 - HKLM\..\Run: [New.net Startup] rundll32 C:\PROGRA~1\NEWDOT~1\NEWDOT~2.DLL,NewDotNetStartup -s
O4 - HKLM\..\RunServices: [Machine Debug Manager] C:\WINDOWS\SYSTEM\MDM.EXE
O4 - HKLM\..\RunServices: [SAgent2ExePath] C:\Programmi\File comuni\EPSON\EBAPI\SAgent2.exe
O4 - HKLM\..\RunServices: [McAfeeVirusScanService] C:\Programmi\Network Associates\VirusScan\AVSYNMGR.EXE
O4 - HKLM\..\RunServices: [SymTray - Norton SystemWorks] C:\Programmi\File comuni\Symantec Shared\SymTray.exe "Norton SystemWorks"
O4 - HKLM\..\RunServices: [LicCtrl] runservice.exe
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [SchedulingAgent] C:\WINDOWS\SYSTEM\mstask.exe
O4 - HKLM\..\RunServices: [NPROTECT] C:\Programmi\Norton SystemWorks\Norton Utilities\NPROTECT.EXE
O4 - Startup: Microsoft Office.lnk = C:\Programmi\Microsoft Office\Office\OSA9.EXE
O4 - Startup: EPSON Status Monitor 3 Environment Check 2.lnk = C:\WINDOWS\SYSTEM\E_SRCV02.EXE
O4 - Startup: DSLMON.lnk = C:\Programmi\SAGEM\SAGEM F@st 800-840\dslmon.exe
O4 - Startup: CAMEDIA Master.lnk = D:\Programmi\CM_camera.exe
O4 - Startup: Digisoft AntiDialer.lnk = C:\Programmi\Digisoft AntiDialer\AntiDialer.exe
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O16 - DPF: {0C568603-D79D-11D2-87A7-00C04FF158BB} (BrowseFolderPopup Class) - http://download.mcafee.com/molbin/Shared/MGBrwFld.cab

Ciao ,
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, (nel caso le righe da eliminare non compaiono in modalità provvisoria, eliminale dalla modalità normale e riavvia il computer).

==================================
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - (no file)
-
O2 - BHO: URLLink Class - {4A2AACF3-ADF6-11D5-98A9-00E018981B9E} - C:\Programmi\NewDotNet\newdotnet6_38.dll
O2 - BHO: CDllBho Object - {5A5B6916-ED71-4531-8018-E792DD44156E} - C:\WINDOWS\NNX32.DLL
-
O3 - Toolbar: (no name) - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - (no file)
-
O4 - HKLM\..\Run: [New.net Startup] rundll32 C:\PROGRA~1\NEWDOT~1\NEWDOT~2.DLL,NewDotNetStartup -s
-
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
==================================

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

==================================
newdotnet6_38.dll
NNX32.DLL
NEWDOT~2.DLL
==================================

CANCELLA LA CARTELLA IN ROSSO - C:\Programmi\<font color=red><b>NewDotNet</font id=red></b>

SVUOTA LA CARTELLA - C:\windows\TEMP

Vai a pannello di controllo e clicca su OPZIONI INTERNET qui clicca sui tre pulsanti
ELIMINA COOKIE - ELIMINA FILE - CANCELLA CRONOLOGIA

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

E sempre in modalità provvisoria fai una scansione Antivirus.

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Collaboratore Aiutamici

Quel programma e da rimuovere, almeno cosi viene indicato su molti forum mondiali, probabilmente non riesci a collegarti perché potrebbe essere legato a qualche virus, prova a fare una scansione on line da questo indirizzo
http://security.symantec.com/default.asp?productid=symhome&langid=it&venid=sym

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alfonso_aiutamici@hotmail.it