Malware known as ‘CallJam’ loves to continuously hit up premium phone numbers from Android devices it infects. 500,000 people have downloaded the malicious app since someone uploaded it to the Google Play Store back in May 2016. CallJam likes to masquerade as downloadable games in the official Google Play store. It asks users to rate the app before it initiates, presumably with the promise that theyll receive some in-game reward. Android users (and all mobile users) should always read the reviews and see if anyones comments raise a red flag.”]
Source: https://grahamcluley.com/calljam-malware-infects-androids-keeps-ringing-premium-rate-numbers/