Pictures & videos I didn't record on my phone, why?

[Android Central Question]

I went to my camera on my Samsung S8 and I was scrolling through my pics when a while bunch of videos that I didn't record were on my phone. They were of commercials of app games, like when you play a game and to get an extra turn or more coins they say watch a video to continue. There were a bunch of those videos on my camera picture section. There were also pictures of those stickers that I use on facebook messenger like Pushee the cat among others. Why are they on my phone as if I took a picture or screen shot when I didn't? That had never happened before. Please help, do I have a virus or something?

 

[B. Diddy]

Welcome to Android Central! That's not unusual. Apps (especially games) may cache images and videos in their own directories, and if the developers didn't bother to add a ".nomedia" file to that directory (which they're supposed to do, since it instructs the system to ignore that directory when scanning for media to add to the gallery database), then you'll see that junk in your gallery. It's not a virus.