Pues e descargado delfix y ejecutado y aquí el resultado:
***************************************************************************************************************************************************# DelFix v10.8 - Logfile created 11/04/2015 at 01:10:01
# Updated 29/07/2014 by Xplode
# Username : LAN-W7 - LAN
# Operating System : Windows 7 Ultimate Service Pack 1 (64 bits)
~ Removing disinfection tools ...
Deleted : C:\Users\LAN-W7\Downloads\JRT.exe
~ Creating registry backup ... OK
~ Cleaning system restore ...
Deleted : RP #41 [Windows Update | 03/11/2015 09:55:11]
Deleted : RP #42 [Installed Java SE Development Kit 8 Update 40 (64-bit) | 03/14/2015 16:45:38]
Deleted : RP #43 [Microsoft Visual C++ 2012 Redistributable (x86) - 11.0.60610 | 03/14/2015 17:19:43]
Deleted : RP #44 [Windows Update | 03/16/2015 20:43:03]
Deleted : RP #45 [avast! antivirus system restore point | 03/18/2015 20:46:28]
Deleted : RP #46 [Windows Update | 03/19/2015 17:29:09]
Deleted : RP #47 [Se ha instalado DirectX | 03/23/2015 17:05:45]
Deleted : RP #48 [Se ha instalado DirectX | 03/23/2015 17:08:06]
Deleted : RP #49 [avast! antivirus system restore point | 03/26/2015 14:56:56]
Deleted : RP #50 [Windows Update | 03/28/2015 10:10:29]
Deleted : RP #51 [Removed Java 8 Update 40 | 03/30/2015 20:45:55]
Deleted : RP #52 [Windows Update | 03/31/2015 12:21:20]
Deleted : RP #53 [Windows Update | 04/07/2015 21:45:43]
Deleted : RP #54 [Windows Update | 04/07/2015 22:03:59]
Deleted : RP #55 [Installing COMODO Firewall | 04/10/2015 13:56:29]
Deleted : RP #56 [Instalación del paquete de controladores de dispositivo: COMODO Servicio de red | 04/10/2015 13:59:38]
Deleted : RP #57 [Removed COMODO Firewall | 04/10/2015 14:48:59]
Deleted : RP #58 [Removed GeekBuddy. | 04/10/2015 14:55:23]
New restore point created !
~ Resetting system settings ... OK
########## - EOF - ##########
***************************************************************************************************************************************************Desde que e echo estos pasos no e vuelto a tener el problema de avisos de URL maliciosa de Avast, el PC esta limpio y seguro, y si cada día compruebo que java, flash, chrome, Avast y e comprado también que la opción PPDs de Avast estuviera activada.
Quería darte las gracias
iroc9555 por darme estos consejos y saber un poco mas dentro de este mundillo de los virus
También dar las gracias Avast porque si no llega a ser por esa detección no hubiese sabido que mi PC estaba aun infectada.