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Android.CoinSteal.7

Added to the Dr.Web virus database: 2022-02-17

Virus description added:

  • SHA1: 452e2e3a77e1d8263d853c69440187e052ee3f0a

Description

An Android trojan based on the MetaMask open source crypto wallet software. It steals mnemonic seed phrases used to access crypto wallets and sends them to the attackers’ server. Malware creators distribute this trojan through specially created malicious websites that copy the appearance of MetaMask project’s genuine website.

A comparison between the genuine website (left) and fake one (right):

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Operating routine

The Android.CoinSteal.7 is a full-fledged version of the MetaMask application with implanted malicious functionality. It looks and operates just like the original safe version. The data theft goes unnoticed by the users.

Upon launch, the trojan displays the app’s main menu. There, the user can either create new crypto wallets or import already existing ones.

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In both cases, the user has to enter their seed phrase for authorization into the corresponding field. At that, the seed phrase is covertly sent to the C&C server located at hxxps://admin[.]metamaskio[.]vip/api/posstkey.

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Indicators of compromise

News about the trojan

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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