Joker Trojan Attacks Android Ecosystem


More variants of the Joker Android malware are cropping up relentlessly targeting Android mobile platforms, Google Play. Zscaler have found 17 different samples of Joker being regularly uploaded during September. The Joker malware is a mobile trojan that carries out a type of billing fraud advertising themselves as legitimate apps. Once installed, they simulate clicks and intercept SMS messages to subscribe victims to unwanted, paid premium services. Recent variants exhibited some new tricks, such as the use of AES encryption, and code injection into Android’s “content provider” function.

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