Fake antivirus software, or scareware scams, have been one of the tried and true methods that crooks have used to make illegal profits online in recent years. The scams often offer convincing replicas of legitimate anti-malware software to trick users into installing malicious programs that can steal sensitive information or encrypt hard drives. Kaspersky Lab researcher Denis Maslennikov says that with the explosion of mobile device use, online scam artists have begun targeting users of Android mobile devices with similar offers.
Source: https://threatpost.com/fake-antivirus-scams-targeting-android-users-122911/76040/