Pegasus Spyware is suite of malware exploiting different vulnerabilities on Android and iOS cellphone to gain access and ex-filtrate data. It is author by an Israeli firm NSO.
Teabot is an Android mobile banking Trojan that is targeting users in European Banking mobile apps. It can perform overlay attacks via Android Accessibility Services, intercept messages, perform various key logging activities, steal Google Authentication codes, and even take full remote control of Android devices.
Lucy ransomware encrypts data on mobile devices using AES and then demands a $200 ransom via OneVanilla card to decrypt the files. It is designed for Android devices only.
GravityRAT makes a come back with versions for Android and MAC. It was previously know as for spying on Windows users only. It is capable of retrieving device data, contact lists, email addresses, call logs and SMS messages and can ex-filtrate various types of documents and files.
This is an Andorid Locker application that upon execute abuse android.permission.SYSTEM_ALERT_WINDOW and ask for a code to close the alert. It did not ask for ransom just an annoying alert box.