The Check Point research team uncovered a new Android malware campaign on Google Play it calls Viking Horde. Viking Horde conducts ad fraud, but can also be used for other attack purposes such as DDoS attacks, spam messages, and more. At least five instances of Viking Horde managed to bypass Google Play malware scans so far. The most widely-downloaded instance of the malware is the app Viking Jump, which was uploaded to Google Play on April 15 and has between 50,000-100,000 downloads.”]
Source: https://blog.checkpoint.com/2016/05/09/viking-horde-a-new-type-of-android-malware-on-google-play/