Have some kinda virus

I have a BLU dash x Plus and something has changed my home screen and all that the anti virus has found is something called" FotoProvida"i have found it in my phone under apps cleared cache ,then stopped process .and it comes right back .there is no deleting it . Once i do a factory reset after a few days in comes back !!!! But i think its coming back thru a backed up file that comes with a google ,this is a great feature saves me from entering passwords ,apps etc. IS it possible that this virus is coming back with this back up .?