A new version of the Joker Trojan, known as Android Joker, has appeared. People who install an application for downloading wallpapers, i.e. Stock Wallpaper, unknowingly download malware on their device.

The purpose of the Trojan is to gain access to messages and, in the next step, to subscribe victim to paid subscriptions. The victim is not able to see the SMS sent and received via the application. The victim learns about the paid subscriptions when they receive their monthly statement from the network operator.

According to experts from Dr. Web the new variant of the Trojan can be used to download and execute arbitrary code, thus it is possible to install a banking Trojan.