I have a virus or a bug on my moblie..or whatever it is

[KaMo74]

When I use my phone or unlock it.. Something strange happen and unknown app. Appears in front of me.. Its something like the adverts which appear while browsing the Internet.
What should I do?

[Qatrium]

@KaMo74

Most probably it's an app with ads, and the best practice if you can't figure out which app it is, is to perform a Factory reset (Settings -> Backup & reset -> Factory data reset) or perform a software repair using Xperia Companion. Note that both procedures will erase all your data on phone, so it would be wide to backup using Xperia Companion first. Don't include settings or apps in the backup.

[Shen02]

Just install WA Security at play store..this app will help u to detect and remove strong mallard, aware or virus..

Compare to AVG Protection apps it's useless can't detect any malware, aware and virus.