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Logfile of HijackThis v1.99.1
Scan saved at 23:00:15, on 30/09/2005
Platform: Windows XP (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)

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:\Archivos de programa\Archivos comunes\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\S3tray2.exe
C:\WINDOWS\System32\msupdate32.exe
C:\WINDOWS\System32\steam.exe
C:\Archivos de programa\Winamp\winampa.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Archivos de programa\Hewlett-Packard\AiO\hp psc 700 series\Bin\hpobrt07.exe
C:\ARCHIV~1\HEWLET~1\AiO\Shared\Bin\hpoevm07.exe
C:\Archivos de programa\Hewlett-Packard\AiO\Shared\bin\hpOSTS07.exe
C:\Documents and Settings\osvaldo.MOORE\Escritorio\msn\msnmsgr.exe
C:\Archivos de programa\Internet Explorer\iexplore.exe
C:\Archivos de programa\Internet Explorer\iexplore.exe
C:\Documents and Settings\osvaldo.MOORE\Escritorio\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://searchcentral.cc/search.php?v=4&aff=3675
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://searchcentral.cc/index.php?v=4&aff=3675
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://searchcentral.cc/index.php?v=4&aff=3675
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Archivos de programa\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O4 - HKLM\..\Run: [S3TRAY2] S3tray2.exe
O4 - HKLM\..\Run: [microsft Updates] msupdate32.exe
O4 - HKLM\..\Run: [steam] steam.exe
O4 - HKLM\..\Run: [WinampAgent] C:\Archivos de programa\Winamp\winampa.exe
O4 - HKLM\..\RunServices: [microsft Updates] msupdate32.exe
O4 - HKLM\..\RunServices: [steam] steam.exe
O4 - HKLM\..\RunOnce: [tlc] C:\WINDOWS\update13.js
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [WashAndGo - Cleanup of old Backupfiles] C:\Archivos de programa\WashAndGo\checker.exe /check
O4 - HKCU\..\Run: [MSMSGS] "C:\Archivos de programa\Messenger\msmsgs.exe" /background
O4 - Global Startup: HPAiODevice(hp psc 700 series) - 1.lnk = C:\Archivos de programa\Hewlett-Packard\AiO\hp psc 700 series\Bin\hpobrt07.exe
O8 - Extra context menu item: Descargar con Fl&ashGet - C:\Archivos de programa\FlashGet\jc_link.htm
O8 - Extra context menu item: Descargar todo con Flas&hGet - C:\Archivos de programa\FlashGet\jc_all.htm
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\ARCHIV~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O17 - HKLM\System\CCS\Services\Tcpip\..\{875FF7D0-217B-4737-BDD7-1EC4FAC7E718}: NameServer = 200.27.2.2 200.27.2.7
O18 - Filter: text/html - {4F7681E5-6CAF-478D-9CB8-4CA593BEE7FB} - C:\WINDOWS\System32\xplugin.dll

Bajar ewido security suite:
http://www.ewido.net/en/download/
Actualizarlo acá :
http://www.ewido.net/en/download/updates/

configurarlo así:

• During the installation, under "Additional Options" uncheck "Install background guard" and "Install scan via context menu".
• Launch ewido, there should be a big E icon on your desktop, double-click it.
• The program will prompt you to update click the OK button
• The program will now go to the main screen
You will need to update ewido to the latest definition files.
• On the left hand side of the main screen click update
• Click on Start
The update will start and a progress bar will show the updates being installed.

Once the updates are installed do the following:
• Reboot into Safe Mode, you can do this by restarting your computer, then contiunally tapping F8 until a menu appears. Use your up arrow key to highlight Safe Mode, then hit enter. Then, run Ewido.
• Click on scanner
• Make sure the following boxes are checked before scanning:
o Binder
o Crypter
o Archives
• Click on Start Scan
• Let the program scan the machine
While the scan is in progress you will be prompted to clean files, click OK

Once the scan has completed, there will be a button located on the bottom of the screen named Save report
• Click Save report
• Save the report to your desktop

limpias con este programa, reinicias y pon el reporte de éste y un nuevo log del hijack
Salu2
Caito