A family of malicious apps from developer “Mobile apps Group sic” are listed on Google Play and infected with Android/Trojan.HiddenAds.BTGTHB. In total, four apps are listed, and together they have amassed at least one million downloads. When users first install this malicious app, it takes a couple of days before it begins to display malicious behavior. Delaying malicious behavior is a common tactic to evade detection by malware developers.
Older versions of these apps have been detected in the past as different variants of Android/Trojan.HiddenAds. Yet, the developer is still on Google Play dispensing its latest HiddenAds malware.
The apps listed are all Bluetooth or Mobile transfer themed.