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Trojan Embedded Game BlazBlue Downloaded by More than Million Android Users from PlayStore

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Security experts from Dr.Web found malicious trojan embedded with popular game BlazBlue and it has been downloaded by Millions of users.

Malicious application dubbed as Android.DownLoader.558.origin as a part of special SDK package named Excelliance. Excelliance is designed to Automate the updates of Android applications.

In contrast with the standard update procedure, when an old version of an application is entirely replaced with a new one, the SDK indicated above allows needed components to be loaded separately without reinstalling the entire software package.Excelliance operates as a loader Trojan because it can download and run unchecked application components. This update process violates Google Play store rules because it is dangerous. says Dr.Web

Also Read Dangerous banking Trojan Steal Banking Credentials

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Execution Flow

Once victim launches the Game that embedded with trojan it extracts resources and decrypts that and from there, after that, every time when a user connects to internet Trojan executes itself even though the game no longer launched.

The Trojan connects to C&C server to download all its dependencies and additional components it also downloads separate APK, DEX and ELF files and these files can be launched without user intention.

While installing the APK it shows a dialog box, if it has root access to phone it can process the installation silently. By having complete control over the device attacker can execute whatever commands they can do. They can install any third party applications, advertising modules are any other.

Security experts from Dr.web reported the behavior of Trojan component in SDK to Google and Android.DownLoader.558.origin is still available in play store.

Gurubaran
Gurubaran
Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

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