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Added to the Dr.Web virus database: 2015-08-25

Virus description added:

SHA1: b94832212a3febe8eca65343ee2fa557152ce486

Android.BackDoor.41 is an executable UNIX file designed to run on Android mobile devices. It is incorporated into Android.Backdoor.260.origin as an additional module and is used by this Trojan to install other components on the system.

Android.BackDoor.41 installs the “super” module into /system/bin and and into /system/lib. Moreover, it stealthily installs the substrate_signed.apk application (Tool.Substrate.1.origin) and other modules of Android.Backdoor.260.origin on the infected device.

Curing recommendations


  1. 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.
  2. 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;
    • Switch off your device and turn it on as normal.

Find out more about Dr.Web for Android