Why does google play or my browser show up when i unlock my phone?

[AC Question]

When ever I unlock my phone, it automatically opens either google play and shows me a random game, or it opens my browser and says that a virus may be attacking my phone and when I click solution, it takes me to the app store to some security app.
btw-I have an lg g3.

 

[Craig Capel]

malware.... one or several apps need deleting, sounds like an intent from a broadcast reciever