Bueno ya he seguido vuestras instucciones. El log de l2mfix es el siguiente:

L2Mfix 1.03

Running From:
C:\Documents and Settings\usuario\Escritorio\l2mfix



RegDACL 5.1 - Permissions Manager for Registry keys for Windows NT 4 and above
Copyright (c) 1999-2001 Frank Heyne Software (http://www.heysoft.de)
This program is Freeware, use it on your own risk!

Access Control List for Registry key HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify:
(ID-NI) ALLOW Read BUILTIN\Usuarios
(ID-IO) ALLOW Read BUILTIN\Usuarios
(ID-NI) ALLOW Read BUILTIN\Usuarios avanzados
(ID-IO) ALLOW Read BUILTIN\Usuarios avanzados
(ID-NI) ALLOW Full access BUILTIN\Administradores
(ID-IO) ALLOW Full access BUILTIN\Administradores
(ID-NI) ALLOW Full access NT AUTHORITY\SYSTEM
(ID-IO) ALLOW Full access NT AUTHORITY\SYSTEM
(ID-IO) ALLOW Full access CREATOR OWNER



Setting registry permissions:


RegDACL 5.1 - Permissions Manager for Registry keys for Windows NT 4 and above
Copyright (c) 1999-2001 Frank Heyne Software (http://www.heysoft.de)
This program is Freeware, use it on your own risk!


Denying C(CI) access for predefined group "Administrators"
- adding new ACCESS DENY entry


Registry Permissions set too:

RegDACL 5.1 - Permissions Manager for Registry keys for Windows NT 4 and above
Copyright (c) 1999-2001 Frank Heyne Software (http://www.heysoft.de)
This program is Freeware, use it on your own risk!

Access Control List for Registry key HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify:
(CI) DENY --C------- BUILTIN\Administradores
(ID-NI) ALLOW Read BUILTIN\Usuarios
(ID-IO) ALLOW Read BUILTIN\Usuarios
(ID-NI) ALLOW Read BUILTIN\Usuarios avanzados
(ID-IO) ALLOW Read BUILTIN\Usuarios avanzados
(ID-NI) ALLOW Full access BUILTIN\Administradores
(ID-IO) ALLOW Full access BUILTIN\Administradores
(ID-NI) ALLOW Full access NT AUTHORITY\SYSTEM
(ID-IO) ALLOW Full access NT AUTHORITY\SYSTEM
(ID-IO) ALLOW Full access CREATOR OWNER



Setting up for Reboot


Starting Reboot!

C:\Documents and Settings\usuario\Escritorio\l2mfix
System Rebooted!

Running From:
C:\Documents and Settings\usuario\Escritorio\l2mfix

killing explorer and rundll32.exe

Command Line Process Viewer/Killer/Suspender for Windows NT/2000/XP V2.03
Copyright(C) 2002-2003 Craig.Peacock@beyondlogic.org
Killing PID 1016 'explorer.exe'
Killing PID 1016 'explorer.exe'

Command Line Process Viewer/Killer/Suspender for Windows NT/2000/XP V2.03
Copyright(C) 2002-2003 Craig.Peacock@beyondlogic.org
Error, Cannot find a process with an image name of rundll32.exe

Scanning First Pass. Please Wait!

First Pass Completed

Second Pass Scanning

Second pass Completed!

Zipping up files for submission:
adding: clear.reg (164 bytes security) (deflated 2%)
adding: echo.reg (164 bytes security) (deflated 11%)
adding: direct.txt (164 bytes security) (deflated 2%)
adding: lo2.txt (164 bytes security) (deflated 72%)
adding: readme.txt (164 bytes security) (deflated 49%)
adding: report.txt (164 bytes security) (deflated 63%)
adding: test.txt (164 bytes security) (stored 0%)
adding: test2.txt (164 bytes security) (stored 0%)
adding: test3.txt (164 bytes security) (stored 0%)
adding: test5.txt (164 bytes security) (stored 0%)
adding: backregs/shell.reg (164 bytes security) (deflated 73%)

Restoring Registry Permissions:


RegDACL 5.1 - Permissions Manager for Registry keys for Windows NT 4 and above
Copyright (c) 1999-2001 Frank Heyne Software (http://www.heysoft.de)
This program is Freeware, use it on your own risk!


Revoking access for predefined group "Administrators"
Inherited ACE can not be revoked here!
Inherited ACE can not be revoked here!


Registry permissions set too:

RegDACL 5.1 - Permissions Manager for Registry keys for Windows NT 4 and above
Copyright (c) 1999-2001 Frank Heyne Software (http://www.heysoft.de)
This program is Freeware, use it on your own risk!

Access Control List for Registry key HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify:
(ID-NI) ALLOW Read BUILTIN\Usuarios
(ID-IO) ALLOW Read BUILTIN\Usuarios
(ID-NI) ALLOW Read BUILTIN\Usuarios avanzados
(ID-IO) ALLOW Read BUILTIN\Usuarios avanzados
(ID-NI) ALLOW Full access BUILTIN\Administradores
(ID-IO) ALLOW Full access BUILTIN\Administradores
(ID-NI) ALLOW Full access NT AUTHORITY\SYSTEM
(ID-IO) ALLOW Full access NT AUTHORITY\SYSTEM
(ID-IO) ALLOW Full access CREATOR OWNER


Restoring Sedebugprivilege:

Granting SeDebugPrivilege to Administrators ... failed (GetAccountSid(Administrators)=1332


The following Is the Current Export of the Winlogon notify key:
************************************************** **************************
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify]

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\AtiExtEvent]
"DLLName"="Ati2evxx.dll"
"Asynchronous"=dword:00000000
"Impersonate"=dword:00000001
"Lock"="AtiLockEvent"
"Logoff"="AtiLogoffEvent"
"Logon"="AtiLogonEvent"
"Disconnect"="AtiDisConnectEvent"
"Reconnect"="AtiReConnectEvent"
"Safe"=dword:00000000
"Shutdown"="AtiShutdownEvent"
"StartScreenSaver"="AtiStartScreenSaverEvent"
"StartShell"="AtiStartShellEvent"
"Startup"="AtiStartupEvent"
"StopScreenSaver"="AtiStopScreenSaverEvent"
"Unlock"="AtiUnLockEvent"

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\crypt32chain]
"Asynchronous"=dword:00000000
"Impersonate"=dword:00000000
"DllName"=hex(2):63,00,72,00,79,00,70,00,74,00,33, 00,32,00,2e,00,64,00,6c,00,\
6c,00,00,00
"Logoff"="ChainWlxLogoffEvent"

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\cryptnet]
"Asynchronous"=dword:00000000
"Impersonate"=dword:00000000
"DllName"=hex(2):63,00,72,00,79,00,70,00,74,00,6e, 00,65,00,74,00,2e,00,64,00,\
6c,00,6c,00,00,00
"Logoff"="CryptnetWlxLogoffEvent"

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\cscdll]
"DLLName"="cscdll.dll"
"Logon"="WinlogonLogonEvent"
"Logoff"="WinlogonLogoffEvent"
"ScreenSaver"="WinlogonScreenSaverEvent"
"Startup"="WinlogonStartupEvent"
"Shutdown"="WinlogonShutdownEvent"
"StartShell"="WinlogonStartShellEvent"
"Impersonate"=dword:00000000
"Asynchronous"=dword:00000001

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\ScCertProp]
"DLLName"="wlnotify.dll"
"Logon"="SCardStartCertProp"
"Logoff"="SCardStopCertProp"
"Lock"="SCardSuspendCertProp"
"Unlock"="SCardResumeCertProp"
"Enabled"=dword:00000001
"Impersonate"=dword:00000001
"Asynchronous"=dword:00000001

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\Schedule]
"Asynchronous"=dword:00000000
"DllName"=hex(2):77,00,6c,00,6e,00,6f,00,74,00,69, 00,66,00,79,00,2e,00,64,00,\
6c,00,6c,00,00,00
"Impersonate"=dword:00000000
"StartShell"="SchedStartShell"
"Logoff"="SchedEventLogOff"

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\sclgntfy]
"Logoff"="WLEventLogoff"
"Impersonate"=dword:00000000
"Asynchronous"=dword:00000001
"DllName"=hex(2):73,00,63,00,6c,00,67,00,6e,00,74, 00,66,00,79,00,2e,00,64,00,\
6c,00,6c,00,00,00

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\SensLogn]
"DLLName"="WlNotify.dll"
"Lock"="SensLockEvent"
"Logon"="SensLogonEvent"
"Logoff"="SensLogoffEvent"
"Safe"=dword:00000001
"MaxWait"=dword:00000258
"StartScreenSaver"="SensStartScreenSaverEvent"
"StopScreenSaver"="SensStopScreenSaverEvent"
"Startup"="SensStartupEvent"
"Shutdown"="SensShutdownEvent"
"StartShell"="SensStartShellEvent"
"PostShell"="SensPostShellEvent"
"Disconnect"="SensDisconnectEvent"
"Reconnect"="SensReconnectEvent"
"Unlock"="SensUnlockEvent"
"Impersonate"=dword:00000001
"Asynchronous"=dword:00000001

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\termsrv]
"Asynchronous"=dword:00000000
"DllName"=hex(2):77,00,6c,00,6e,00,6f,00,74,00,69, 00,66,00,79,00,2e,00,64,00,\
6c,00,6c,00,00,00
"Impersonate"=dword:00000000
"Logoff"="TSEventLogoff"
"Logon"="TSEventLogon"
"PostShell"="TSEventPostShell"
"Shutdown"="TSEventShutdown"
"StartShell"="TSEventStartShell"
"Startup"="TSEventStartup"
"MaxWait"=dword:00000258
"Reconnect"="TSEventReconnect"
"Disconnect"="TSEventDisconnect"

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlballoon]
"DLLName"="wlnotify.dll"
"Logon"="RegisterTicketExpiredNotificationEven t"
"Logoff"="UnregisterTicketExpiredNotificationEvent "
"Impersonate"=dword:00000001
"Asynchronous"=dword:00000001


The following are the files found:
************************************************** **************************

Registry Entries that were Deleted:
Please verify that the listing looks ok.
If there was something deleted wrongly there are backups in the backreg folder.
************************************************** **************************
REGEDIT4

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Curr entVersion\Shell Extensions\Approved]
REGEDIT4

[-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Curr entVersion\Internet Settings\User Agent\Post Platform]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Curr entVersion\Internet Settings\User Agent\Post Platform]
"SV1"=""
************************************************** **************************
Desktop.ini Contents:
************************************************** **************************
************************************************** **************************


Y el log de HiJackThis es :

Logfile of HijackThis v1.99.1
Scan saved at 7:41:52, on 19/05/2005
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Archivos de programa\Archivos comunes\Symantec Shared\ccSetMgr.exe
C:\Archivos de programa\Archivos comunes\Symantec Shared\SNDSrvc.exe
C:\Archivos de programa\Archivos comunes\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\Archivos de programa\Archivos comunes\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\system32\spoolsv.exe
C:\MATLAB6p5\webserver\bin\win32\matlabserver.exe
C:\Archivos de programa\Norton AntiVirus\navapsvc.exe
C:\Archivos de programa\Norton AntiVirus\IWP\NPFMntor.exe
C:\Archivos de programa\Archivos comunes\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\Archivos de programa\Messenger\msmsgs.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Archivos de programa\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Archivos de programa\Trust\Ami Mouse 250S Cordless\Amoumain.exe
C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb0 4.exe
C:\Archivos de programa\Archivos comunes\Symantec Shared\ccApp.exe
C:\WINDOWS\System32\ctfmon.exe
C:\WINDOWS\System32\msiexec.exe
C:\WINDOWS\explorer.exe
C:\Archivos de programa\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.es/
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.google.es/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Vínculos
F3 - REG:win.ini: load=C:\TBridge\Flatbed.exe
O3 - Toolbar: (no name) - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - (no file)
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Archivos de programa\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [AWMON] "C:\Archivos de programa\Lavasoft\Ad-Aware SE Professional\Ad-Watch.exe"
O4 - HKLM\..\Run: [WheelMouse] Amoumain.exe
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] C:\WINDOWS\System32\spool\drivers\w32x86\3\hpztsb0 4.exe
O4 - HKLM\..\Run: [ccApp] C:\Archivos de programa\Archivos comunes\Symantec Shared\ccApp.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [MSN Messenger] msnmsgr.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Archivos de programa\Messenger\msmsgs.exe" /background
O4 - Global Startup: DSLMON.lnk = C:\Archivos de programa\SAGEM\SAGEM F@st 800-840\dslmon.exe
O4 - Global Startup: InterVideo WinCinema Manager.lnk = C:\Archivos de programa\InterVideo\Common\Bin\WinCinemaMgr.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Archivos de programa\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: Picture Package Menu.lnk = ?
O4 - Global Startup: Picture Package VCD Maker.lnk = ?
O8 - Extra context menu item: E&xportar a Microsoft Excel - res://C:\ARCHIV~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll
O9 - Extra 'Tools' menuitem: Consola de Sun Java - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Archivos de programa\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Archivos de programa\Messenger\MSMSGS.EXE
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://by103fd.bay103.hotmail.msn.com/resources/MsnPUpld.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://v5.windowsupdate.microsoft.com/v5consumer/V5Controls/en/x86/client/wuweb_site.cab?1113143602218
O16 - DPF: {6F74F92E-8DD8-4DDE-8FB8-CBB882A68048} (Microsoft Office XP Professional Step by Step Interactive) - file://D:\setup\mitm0026.cab
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/2004061001/housecall.trendmicro.com/housecall/xscan53.cab
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Archivos de programa\Archivos comunes\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation (ccPwdSvc) - Symantec Corporation - C:\Archivos de programa\Archivos comunes\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Archivos de programa\Archivos comunes\Symantec Shared\ccSetMgr.exe
O23 - Service: MATLAB Server (matlabserver) - Unknown owner - C:\MATLAB6p5\webserver\bin\win32\matlabserver.exe
O23 - Service: Servicio Auto-Protect de Norton AntiVirus (navapsvc) - Symantec Corporation - C:\Archivos de programa\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton AntiVirus Firewall Monitor Service (NPFMntor) - Symantec Corporation - C:\Archivos de programa\Norton AntiVirus\IWP\NPFMntor.exe
O23 - Service: SAVScan - Symantec Corporation - C:\Archivos de programa\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service (SBService) - Symantec Corporation - C:\ARCHIV~1\ARCHIV~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Archivos de programa\Archivos comunes\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec SPBBCSvc (SPBBCSvc) - Symantec Corporation - C:\Archivos de programa\Archivos comunes\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: Symantec Core LC - Symantec Corporation - C:\Archivos de programa\Archivos comunes\Symantec Shared\CCPD-LC\symlcsvc.exe

Espero que os sea de ayuda. Gracias