If you suddenly see a “Google Play” icon on your Androiod phone, beware that it could be the act of a new virus.
If you click on the icon you may go the genuine Google Play store so that you may not realize that this is a malware.
In the background the malware will work as a DDOS agent and sends out information about your device to a Command and Control center. Subsequently the command and Control center will establish a line of communication through messages to control the activities on the phone.
The trojan may use your phone to either launch a DDOS attack or to send out messages. Needless to say that you will be paying the cost of such malicious messages and also open ypurself to the charge of a Cyber Crime activity.
Be sure that you have an effective mobile security working in your phone to mitigate this risk. More Info