I got a message from WOW platform saying my machine was generating suspicious activity. I run AED4 and MacAffee last versions with 0 threats results.
Then I turned to the Activity Monitor and checked what has been going on, just to find this _mdnsresponder process amidst regular activity.
Checked the web and apparently is some kind of bug at the service of an (eventual) unknown trojan. There is nothing to relax someone like these news.
Does anyone know how to get rid of this plague?