Android.Xiny.19.origin is a new Android trojan that has targeted dozens of games in the official Google Play Store. The Trojan relies on steganography to dynamically run arbitrary APK files. Trojan can download applications and prompt the user to run malicious software as well as display annoying advertisements. Many of the games remain active on the official Play Store as of this writing, though Dr Web has notified Google of the Trojan, many of them still active. Android users should think carefully before installing any app that might seem dubious.”]
Source: https://grahamcluley.com/android-trojan-steganography/