Hey Google...
How about inventing great AI to just read some damn user comments...
~
"It appears that Google missed warnings about the malware infection. The user comments section of at least one of the infected apps was filled with outraged users noting that it was carrying a malicious payload and it appears that the apps were being promoted on Instagram."
~
https://www.theregister.co.uk/2017/09/15/malware_outbreak_googles_play_store/