Why is my Galaxy S9 acting like it has a virus?

[Lori Jones1]

My Galaxy S9 turned on 12 days ago with random ads popping up everywhere, text tool bars disappearing, everything freezing every 5 seconds for a second (that's when the text disappears). I'm at my wits end! Its affecting everything I do on my phone. I've tried 3 different anti virus programs and none can detect a virus. Help me!

 

[belodion]

Welcome.

Does this persist in Safe Mode?

 

[Golfdriver97]

Welcome to the forums. Did you add or update any new apps recently?

 

[Lori Jones1]

Yes I think I did install a new app at some point. I'm not sure how to run my phone safe mode.

 

[B. Diddy]

https://support.t-mobile.com/docs/DOC-37190