How to get rid of malware?

[AC Question]

Help! I think I'm malware infected but I can't get rid of it, even after factory reset.
I think I got the malware from Line Deco app, after the latest update there's an automatic install of wallpaper picker. Suddenly I notice that there's a big dip in my battery usage. I tried uninstalling the App, but the wallpaper picker is still there. I tried factory reset, and created a new google account but still the compenen

 

[B. Diddy]

Welcome to Android Central! Is it called Live Wallpaper Picker? That's a normal Android system app, which has been present for many versions. Unless you see one that has a duplicate name, you probably just never noticed it before.

Did you install this app from Google Play? If so, then malware is unlikely. Some live wallpapers can really suck battery, perhaps because they're constantly checking the web to update information (like a weather live wallpaper) or checking your Google Play license (to see if you have the free or purchased version).

Are you still getting excess battery drain after the factory reset?