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Android.MulDrop.46.origin

Added to the Dr.Web virus database: 2015-03-18

Virus description added:

The Trojan for Android devices. Android.MulDrop.46.origin is a dropper designed to distribute other malicious programs, for example, Android.BankBot.35.origin, among Android mobile devices. The backdoor can be distributed by cybercriminals under the guise of a popular browser or some other legitimate software.

Once it is installed on the mobile device, Android.MulDrop.46.origin can be launched using different methods. For example, the user themselves can launch the Trojan by tapping the malware’s shortcut on the Home Screen. In that case, Android.MulDrop.46.origin prompts the user to grant it administrative privileges and deletes the shortcut. Moreover, the Trojan can launch automatically when the operating system is loaded or when the device’s screen is unlocked (by using control of android.intent.action.BOOT_COMPLETED and android.intent.action.USER_PRESENT system events respectively). Once it is launched, Android.MulDrop.46.origin operates as a system service.

screen

Malicious activity

Using the DexClassLoader class, Android.MulDrop.46.origin loads an executable DEX file stored inside of the backdoor’s program package into the infected device’s RAM. This file is a Trojan (can be detected as Android.BankBot.35.origin) designed to install other malicious applications on the system (for example, a banking Trojan Android.Banker.46.origin) and to execute various commands issued by cybercriminals.

The Trojan’s malicious functionality can be also used by Android.BankBot.35.origin to run downloaded DEX files.

Curing recommendations


Android

  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

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