A sophisticated trojan named TsarBot is targeting over 750 legitimate banking and shopping applications on Android devices. It overlays a counterfeit login screen on real apps to capture user credentials. TsarBot is believed to have Russian origins and can remotely control the device's screen, simulating user interactions and capturing device lock credentials through a deceptive lock screen. The trojan is typically installed from phishing websites, where a dropper application delivers the TsarBot APK file. Once installed, it disguises itself as the Google Play Services app and urges users to enable Accessibility services. Users are advised to avoid installing apps from outside the Google Play Store, ensure Play Protect is enabled, and only enable Accessibility Services when necessary to mitigate risks.