you guys wanted my help got a Virus that site! and I can not access my account from Bank it creates a proxy hxxp://download.msndown.com.br/msn.php
hey it could be malware related according to the virustotal scan it should be clean.
but if you go to addition information it say it have been reported in the past to be bad so this needs further investigation.
please follow this guide and post your logs here.
a malware expert will guide you from there. and someone will have to check that url out if it could be something in it code that is bad.
http://forum.avast.com/index.php?topic=53253.0
good luck.
or maybe post here Português http://forum.avast.com/index.php?board=27.0