New Joker samples emerge almost every day in Google's Play Store, says Aviran Hazum, mobile security researcher at Check Point.
Tatyana Shishkova, Android malware analyst at Kaspersky, has been tweeting about apps with Joker code since October, 2019. She listed over 70 compromised apps that made it into Play Store, many having at least 5,000 installations and a few with more than 50,000. Almost all of them have been removed from the repository. At least, three totaling more than 21,000 installations, are still present, as Shishkova shows with a tweet today