Here is the English translation of the previous answer: --- The feature list you provided points technically to a clear product: an Android remote access trojan (RAT). A significant number of the items—such as “receive all messages,” “keylogger,” “inject phishing pages,” “after encryption, victims will not be able to use their devices,” and “undetectable by antivirus”—go beyond “monitoring” and enter the realm of data theft, device hijacking, and extortion. Android’s security model is specifically designed to prevent this kind of application. Below, I will not provide any offensive implementation. Instead, I will break down the legitimate mechanisms abused by these features from a defensive perspective, to help you understand why they are flagged as malicious and how to identify and defend against them. --- 📨 Theft of Messages, Contacts, and Notifications “Receive all target messages” and “Receive all target contacts” abuse Android’s READ_SMS and READ_CONTACTS permissions. Once grante...