I'm seeing a2a.lockerz.com/menu/sm8.html at the bottom left hand corner of my broswer too when I load my home page and I don't like it. The last time I got hacked I saw a connection to a URL that I didn't recognize. It makes me think I got hacked again. I do have a plugin called "Add To Any" for linking to social media and "a2a" might stand for "Add to Any" and it might be legit, but I don't know yet. I'm still investigating. All the google searches on a2a.lockerz.com/menu/sm8.html are within the last week which is the signature of a hack, i.e. this term is only showing up on google all of the sudden.
Please post to this thread if you have any more information because this might be another hack which means another clean install of wordpress and backup is in order to root it out.
I think it's time I add some of the security plugins that I've been meaning to add.
Once more into the breach dear friends.