LeakerLocker targets Android OS and was discovered by the McAfee Mobile Malware Research team masquerading as two seemingly legitimate apps listed for download on the Google Play store. One malicious app, Wallpapers Blur HD, has been downloaded between 5,000 and 10,000 times and the other app, Booster & Cleaner Pro, has been downloaded between 1,000 and 5,000 at the time of this threat profile entry. Both apps request excessive device permissions beyond what should be needed if they were to perform their advertised functions. Once the app is executed, LeakerLocker locks the device's home screen and accesses the victim's email address, Chrome browser history, pictures, contacts, call log, and text messages. It can also read some device information. It displays a warning to the victim that threatens to send nearly all of the device's data to every person in the victim's contact list within 72 hours if the $50 ransom payment is not submitted. This variant does not encrypt files.
- McAfee provides more information about LeakerLocker here.