This is a trojan that is built into third-party WhatsApp messenger mods and camouflaged as Google library classes. The names of the malicious classes are as follows: com.google.android.app.contex and androidx.activity.app.androidx. While the host application is being used, the trojan sends requests to one of these C&C servers:
https[:]//googapis[.]org
https[:]//apisgoogle[.]org
In return, the trojan receives two URLs. One of them is intended for Russian-speaking users, and the other is for everyone else. Next, the trojan displays a dialog box with the content downloaded from the server. When the user clicks on the confirmation button, the corresponding link is loaded in the browser.
Curing recommendations
Android
If the mobile device is operating normally, download and install Dr.Web for Android Light. Run a full system scan and follow recommendations to neutralize the detected threats.
If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
Once you have activated safe mode, install the Dr.Web для Android Light onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;