A trojan application implanted into some unofficial modifications of WhatsApp messenger for Android. Malicious actors can use it to spy on users. Upon receiving commands from a C&C server, this trojan can:
Build a list of all the available files that are stored on a device or on its SD card;
Upload the files specified in the command to the C&C server;
Collect information about the infected device;
Access the phonebook;
Eavesdrop on the surroundings by recording audio;
Change the C&C server address.
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;