Hi michel_roberge,
secureserver.net is and was on several malware domain lists and your IP is “ip-23-229-240-18.ip.secureserver.net”
That could have been a reason, but actually I do not know, not being an avast! team member.
My extrapolations just come from some check-results I performed.
avast! team should answer the question why your address was put on the avast! general URL:Mal block list.
As there is WordPress 3.9.1 “http-generated” there is this vulnerability, e,g,: https://core.trac.wordpress.org/ticket/28610
This is not avast! flagged either: http://toolbar.netcraft.com/site_report?url=https://p3plcpnl0548.prod.phx3.secureserver.net
Did you report to virus@avast.com, giving a link to this thread’s info? Whenever there is something conclusive they are known to react quickly and whenever a general block can be lifted, it sometimes occurs with a forthcoming update.
Anyway thanks for reporting.
Stay safe and secure, is the wish of
polonus