Android ransomware is now using dropper techniques to drop malware on rooted devices as well as an inefficient 2D barcode ransom demand.

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Android.Lockdroid.E has been seen using a dropper technique to drop a version of itself on rooted Android devices. While this is not an uncommon technique, this is the first time we’ve seen it used to deliver ransomware to Android devices.

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Source: Symantec