acabo de pasar el ewido este fue el resultado

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ewido anti-spyware online scanner
http://www.ewido.net
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Name: TrackingCookie.Yieldmanager
Path: :mozilla.6:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Yieldmanager
Path: :mozilla.7:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Yieldmanager
Path: :mozilla.8:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Yieldmanager
Path: :mozilla.9:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Yieldmanager
Path: :mozilla.10:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Yieldmanager
Path: :mozilla.11:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Yieldmanager
Path: :mozilla.12:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Yieldmanager
Path: :mozilla.13:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Yieldmanager
Path: :mozilla.14:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Adbrite
Path: :mozilla.29:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Adbrite
Path: :mozilla.30:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Adbrite
Path: :mozilla.34:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.2o7
Path: :mozilla.65:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Doubleclick
Path: :mozilla.93:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Atdmt
Path: :mozilla.105:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Fastclick
Path: :mozilla.108:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Fastclick
Path: :mozilla.109:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Imrworldwide
Path: :mozilla.117:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Imrworldwide
Path: :mozilla.118:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Pro-market
Path: :mozilla.128:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Pro-market
Path: :mozilla.129:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Statcounter
Path: :mozilla.138:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Statcounter
Path: :mozilla.139:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Statcounter
Path: :mozilla.140:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Casalemedia
Path: :mozilla.149:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Casalemedia
Path: :mozilla.150:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Casalemedia
Path: :mozilla.151:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Casalemedia
Path: :mozilla.152:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Casalemedia
Path: :mozilla.153:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Casalemedia
Path: :mozilla.154:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Casalemedia
Path: :mozilla.155:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Tribalfusion
Path: :mozilla.162:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Burstnet
Path: :mozilla.163:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Burstnet
Path: :mozilla.164:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Tacoda
Path: :mozilla.165:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Tacoda
Path: :mozilla.166:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Tacoda
Path: :mozilla.167:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Overture
Path: :mozilla.177:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.2o7
Path: :mozilla.207:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Webtrends
Path: :mozilla.210:C:\Documents and Settings\Administrador\Datos de programa\Mozilla\Firefox\Profiles\7k45jzi3.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Netflame
Path: :mozilla.40:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Tribalfusion
Path: :mozilla.59:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.2o7
Path: :mozilla.72:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Yieldmanager
Path: :mozilla.87:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Yieldmanager
Path: :mozilla.88:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Yieldmanager
Path: :mozilla.89:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Yieldmanager
Path: :mozilla.90:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Yieldmanager
Path: :mozilla.91:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Statcounter
Path: :mozilla.102:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Statcounter
Path: :mozilla.103:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Statcounter
Path: :mozilla.104:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Tradedoubler
Path: :mozilla.107:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Cqcounter
Path: :mozilla.108:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Advertising
Path: :mozilla.115:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Advertising
Path: :mozilla.116:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Advertising
Path: :mozilla.117:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Advertising
Path: :mozilla.118:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: TrackingCookie.Overture
Path: :mozilla.127:C:\Documents and Settings\user\Datos de programa\Mozilla\Firefox\Profiles\tw4ec82d.default \cookies.txt
Risk: Medium

Name: Not-A-Virus.Monitor.Win32.AKL.25
Path: C:\WINDOWS\system32\TDispVol.dll
Risk: Low

Realiza estos pasos:

:1:
Descarga y ejecuta CCleaner (http://download.ccleaner.com/ccsetup139.exe). Usar primero su opción de "Limpiador" para borrar cookies, temporales de Internet y todos los archivos que este te muestre como obsoletos, y luego usar su opción de "Registro" para limpiar todo el registro de Windows (haciendo copia de seguridad).

:2: Descarga y ejecuta MalwareBits Anti-malware (http://http://www.besttechie.net/tools/mbam-setup.exe), examina por completo tu PC, reinicia. (dejanos el reporte que genere).

:3: Pasa este antivirus on line:
kaspersky (http://www.kaspersky.com/sp/virusscanner) -Manual- (http://www.forospyware.com/t55793.html) (Coloca su log)

Si usas Firefox (http://www.forospyware.com/Firefox/Firefox.htm) necesitaras de la extension IETab (http://www.forospyware.com/t84166.html)

Recuerda volver y comentarnos si mejora o no tu PC, Saludos!