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New Android Trojan is hidden CallJam makes costly calls

New Android Trojan is hidden CallJam makes costly calls

by sigismund » 2016-09-11 23:26:51


the Malware contained in mobile game Chest Gems for Clash Royale.


Researchers at Check Point have discovered in the online Google Play Store a malicious application containing the Trojan is able to show ads and make calls to premium numbers without your knowledge.

The malware, dubbed CallJam, hidden in a mobile game Chest Gems for Clash Royale uploaded in Google Play in may of this year. In five months, the app was downloaded from 100 thousand to 500 thousand times.

Unlike other malware of this kind, CallJam does not interrupt the gameplay by banner ads, instead it launches the browser and displays advertisements in Internet Explorer. A key feature of the Trojan is the ability to establish a connection with certain pay numbers, resulting from the account holder's mobile device be charged large sums of money. Although the application prompts the user for permission, many smartphone owners don't pay that much attention to what they are allowed.

Currently, the malware is already removed from Google Play Store.

Previously, experts Check Point have discovered another malware in Google Play Store. DressCode Trojan capable of stealing information from protected servers and to serve as a proxy for attacks within corporate networks.
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