A Trojan for Android devices. It was incorporated into the application called Brain Test and was distributed via Google Play. It serves the purpose of acquiring root privileges to install various programs without user knowledge.
Once launched, Android.Backdoor.273.origin establishes a connection to the command and control server and downloads several exploits in order to get root privileges. If successful, the Trojan downloads another malicious component (Android.DownLoader.173) which gets installed into a system folder. Upon a command from cybercriminals, this module can stealthily download and install other malware on the compromised device.
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;