allora ho uesto problema mi ritrovo sti due file sempre tra i piedi "wxmst" "wsctl"
non ditemi di fare questo perche l'ho gia fatto mille volte e al riavvio mi ritrovo lo stesso problema :
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).

==================================
O4 - HKLM\..\Run: [*wuauclt.exe] wxmst.exe
O4 - HKLM\..\Run: [*windows update] wsctl.exe
O4 - HKLM\..\RunServices: [*wuauclt.exe] wxmst.exe
O4 - HKLM\..\RunServices: [*windows update] wsctl.exe
-
O4 - HKCU\..\Run: [*wuauclt.exe] wxmst.exe
O4 - HKCU\..\Run: [*windows update] wsctl.exe
-
O23 - Service: *windows update - Unknown - C:\WINDOWS\system32\wsctl.exe
O23 - Service: *wuauclt.exe - Unknown - C:\WINDOWS\system32\wxmst.exe
==================================

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

==================================
wxmst.exe
wsctl.exe
==================================

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




Logfile of HijackThis v1.99.0
Scan saved at 16.15.33, on 26/02/2005
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\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\wxmst.exe
C:\WINDOWS\system32\wsctl.exe
C:\WINDOWS\system32\wstcl.exe
C:\PROGRA~1\McAfee.com\PERSON~1\MpfTray.exe
C:\PROGRA~1\mcafee.com\agent\mcagent.exe
C:\WINDOWS\system32\wstcl.exe
C:\WINDOWS\StartupMonitor.exe
C:\PROGRA~1\McAfee.com\PERSON~1\MpfAgent.exe
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\system32\wstcl.exe
C:\Programmi\Spyware Doctor\swdoctor.exe
C:\WINDOWS\system32\wstcl.exe
C:\WINDOWS\system32\rundll32.exe
C:\PROGRA~1\McAfee.com\PERSON~1\MPFSERVICE.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\Internet Explorer\iexplore.exe
C:\Programmi\Internet Explorer\iexplore.exe
C:\Documents and Settings\Connessione\Desktop\Cartella d'estrazione\hijackthis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/
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: PCTools Site Guard - {5C8B2A36-3DB1-42A4-A3CB-D426709BBFEB} - C:\PROGRA~1\SPYWAR~2\tools\iesdsg.dll
O2 - BHO: PCTools Browser Monitor - {B56A7D7D-6927-48C8-A975-17DF180C71AC} - C:\PROGRA~1\SPYWAR~2\tools\iesdpb.dll
O4 - HKLM\..\Run: [URLLSTCK.exe] C:\Documents and Settings\Connessione\Desktop\Downloads\Programmi scaricati da idc++\Norton.Internet.Security.2004\Norton Internet Security 2004[ITA]by.siciliano\Nis2004\SETUP\PCONTROL\APP\URLLSTCK.EXE
O4 - HKLM\..\Run: [MCUpdateExe] C:\PROGRA~1\mcafee.com\agent\McUpdate.exe
O4 - HKLM\..\Run: [MPFExe] C:\PROGRA~1\McAfee.com\PERSON~1\MpfTray.exe
O4 - HKLM\..\Run: [MCAgentExe] c:\PROGRA~1\mcafee.com\agent\mcagent.exe
O4 - HKLM\..\Run: [*Microsoft Update] wstcl.exe
O4 - HKLM\..\Run: [*windows update] wsctl.exe
O4 - HKLM\..\Run: [*wuauclt.exe] wxmst.exe
O4 - HKLM\..\Run: [StorageGuard] "C:\Programmi\File comuni\Sonic\Update Manager\sgtray.exe" /r
O4 - HKLM\..\Run: [ShowShifter TVTV EPG Daemon] "C:\Programmi\Home Media Networks Limited\ShowShifter\TVTVD.exe"
O4 - HKLM\..\Run: [Run StartupMonitor] StartupMonitor.exe
O4 - HKLM\..\Run: [Reminder] "C:\Windows\Creator\Remind_XP.exe"
O4 - HKLM\..\Run: [Recguard] C:\WINDOWS\SMINST\RECGUARD.EXE
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [nwiz] nwiz.exe /installquiet /keeploaded /nodetect
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [AdslTaskBar] rundll32.exe stmctrl.dll,TaskBar
O4 - HKLM\..\RunServices: [*Microsoft Update] wstcl.exe
O4 - HKLM\..\RunServices: [*windows update] wsctl.exe
O4 - HKLM\..\RunServices: [*wuauclt.exe] wxmst.exe
O4 - HKCU\..\Run: [Spyware Doctor] "C:\Programmi\Spyware Doctor\swdoctor.exe" /Q
O4 - HKCU\..\Run: [*Microsoft Update] wstcl.exe
O4 - HKCU\..\Run: [*windows update] wsctl.exe
O4 - HKCU\..\Run: [*wuauclt.exe] wxmst.exe
O4 - HKCU\..\Run: [Skype] "C:\Programmi\Skype\Phone\Skype.exe" /nosplash /minimized
O4 - HKCU\..\Run: [NVIEW] rundll32.exe nview.dll,nViewLoadHook
O9 - Extra button: Spyware Doctor - {2D663D1A-8670-49D9-A1A5-4C56B4E14E84} - C:\PROGRA~1\SPYWAR~2\tools\iesdpb.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
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=36467&clcid=0x409
O16 - DPF: {4ED9DDF0-7479-4BBE-9335-5A1EDB1D8A21} (McAfee.com Operating System Class) - http://download.mcafee.com/molbin/shared/mcinsctl/en-us/4,0,0,84/mcinsctl.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://v5.windowsupdate.microsoft.com/v5consumer/V5Controls/en/x86/client/wuweb_site.cab?1107794056000
O16 - DPF: {814EA0DA-E0D9-4AA4-833C-A1A6D38E79E9} (DASWebDownload Class) - http://das.microsoft.com/activate/cab/x86/i486/NTANSI/retail/DASAct.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/msnmessengersetupdownloader.cab
O16 - DPF: {BCC0FF27-31D9-4614-A68E-C18E1ADA4389} (DwnldGroupMgr Class) - http://download.mcafee.com/molbin/shared/mcgdmgr/en-us/1,0,0,21/mcgdmgr.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{BC4EAEF5-4DB0-4420-BEAB-4B6A464FC013}: NameServer = 217.141.104.205 151.99.125.1
O23 - Service: *wuauclt.exe - Unknown - C:\WINDOWS\system32\wxmst.exe
O23 - Service: Macromedia Licensing Service - Macromedia - C:\Programmi\File comuni\Macromedia Shared\Service\Macromedia Licensing.exe
O23 - Service: McAfee SecurityCenter Update Manager - McAfee, Inc - C:\PROGRA~1\McAfee.com\Agent\mcupdmgr.exe
O23 - Service: McAfee Personal Firewall Service - McAfee Corporation - C:\PROGRA~1\McAfee.com\PERSON~1\MPFSERVICE.exe
O23 - Service: NVIDIA Driver Helper Service - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: Symantec Network Drivers Service - Unknown - C:\Programmi\File comuni\Symantec Shared\SNDSrvc.exe (file missing)

Se in modalità provvisoria non compaiono ne le righe ne i file da eliminare, significa che é opera di un virus

prova a cercarli manualmente in questi percorsi
C:\WINDOWS\system32\wxmst.exe
C:\WINDOWS\system32\wsctl.exe

e se non ci sono proprio e il tuo antivirus non rileva virus, non resta altro da fare che formattare il disco fisso e reinstallare tutto.

Prima di formattare puoi fare una scansione antivirus on line da questo indirizzo
http://security.symantec.com/default.asp?productid=symhome&langid=it&venid=sym

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Collaboratore Aiutamici