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Encrypted Scripts From Trojan Can Surprise Angry Birds Players

JB

The huge popularity of games such as Angry Birds Space, currently in the Top 50 of the most popular Free Apps in the Google Play Market, makes them a perfect cover for malware authors to distribute new malicious code and to target many users. Recently a new malware that downloads and rates apps in the background without the user’s consent was found injected in several applications in third-party Android markets. One of the affected apps is Angry Birds Space.

The malware pretends to be the premium version of the game but it is in fact one of the first free versions of the app that is already in the Google Play Market. A comparison between the decompiled code of the Trojan version and the clean one reveals the injected code that is executed every time the user opens the game (or when the device is restarted).