The instagram app. Now I spend all day on it and it was the gate way to my porn addiction. I am the shell of the man I used to be. I never shower and there are days I never get out of bed. Seriously folks, KEEP OFF INSTAGRAM. Just playing, there was some registry virus but I don't remember what it was called. It just kept opening up browser tabs and also slowed my pc down. I also suspect it tried to access my email because I saw my passwords on my browser. Don't download cracked apps. It's not worth it. Phone or pc