Today, April 12th around 1 p.m. CDT, I started getting this strange plus green symbol on my EVO 4G notifications bar (I will be attaching two pictures here) Has anyone perhaps mention anything about this? Notice the green + sign in the notification bar.
Here is when I open it: there is a spam about dating and girls site or something. Please help what should I do to get rid of this and protect from happening again, also this will help others to prevent get the same spam.
Ugh. It looks you ran into what's commonly called an "airpush" ad. They come from certain advertisement SDKs that put that notification bar spam there, hanging all out and trying to get you to click it. They are inherently evil, like Reagan in the Exorcist kind of evil. Good thing finding which app is doing it is fairly easy.
Grab Lookout Ad Network Detector from the Google Play store. It's free, and will scan all your apps to see what they can, and can't do. One of the apps that gets listed as able to place ads in the notification bar is the culprit. Uninstall it, and never look back.
It's worth noting that just because an app can put ads in the notification bar doesn't mean they are doing it. Different capabilities come from different ad SDKs, and some folks may have the ability and aren't using it. We call them the good guys.
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