An eight-month-long investigation by Roman Unuchek, a security researcher at Kaspersky Lab, has uncovered one of the most complex malware distribution schemes seen to date on the Android malware scene. According to Unuchek, for the last year, the criminal group behind the Ztorg Android trojan has been using so-called “rewards apps,” to deliver malware on the devices of unsuspecting users. These “rewards apps” are Android apps that provide money to users who install apps from their collection. A user using a rewards app usually earns a commission of a few US cents if he installs an app on his device. The more apps they install, the more money they earn, which they can then use to buy game coins or access to commercial apps.
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ORIGINAL SOURCE: bleepingcomputer.com