There is a conditional redirect from your site that redirects to htxp://www.KissRisk.com/ (found with DrWeb’s url checker).
I now get a Page Not Found - Error 404! for htxp://www.markething.me/mm/mm_agent_setup.exe and no avast! flag
(because there is nothing to scan at the moment)
For site I get HTTP/1.1 301 Moved Permanently
Connection: close
Date: Fri, 25 Apr 2014 22:29:21 GMT
Location: htxp://www.markething.me/
Server: nginx admin
Content-Length: 233
Content-Type: text/html; charset=iso-8859-1
X-Cache: HIT from Backend

Waiting for an avast! team member to discuss the apparent FP.
Hope marketing target will now match communication target ;D

pol