What is this floating blue ghost icon?

[AC Question]

Today, (9/30/16) I noticed this little round blue icon with a white ghost in the center up in the corner of my screen. It's always on top of any app I open. It wasn't there before today and I haven't downloaded any apps. I have a Samsung Galaxy Core Prime, OS 5.1.1

 

[the tall guy]

Hi, can you create an acc and upload a screenshot for us all to see? do you have Snapchat installed?

 

[Bexy711]

Today, (9/30/16) I noticed this little round blue icon with a white ghost in the center up in the corner of my screen. It's always on top of any app I open. It wasn't there before today and I haven't downloaded any apps. I have a Samsung Galaxy Core Prime, OS 5.1.1

 

[Bexy711]

Omg I got the same random things pop up today too it's never been there before... what is it its doing my head in it keeps showing random messages on my screen like click on me click on me had 3 different message pop up and had to reset my phone coz it wouldn't go away I couldn't even swipe it away and I haven't down loaded any new apps so no idea what it could be.