Hello my name is leonardo’m from Brazil and would like to ask a help my avast is showing all the web pages I open URL as that may harm my computer this problem started here as well settle on 09/12/2012 how can I solve this? already bound. 
follow this guide and attach the requested logs …not copy and paste http://forum.avast.com/index.php?topic=53253.0
AdwCleaner
Malwarebytes
OTL
aswMBR