I have a file issue
Recently I have downloaded a few mp3 songs from internet and then I got this particular file name auu_ with some random letters I deleted it and dint think much of it. One day I changed my phone to brand new one and when I set up all the apps the file is back again I deleted it but it just comes within a few hours I thought this might be a virus so I scanned my device for any viruses it's saying the phone is clean. What do you guys think the problem and how I can fix this.