Virustotal checks the applications installed in your Android device against virustotal (http://www.virustotal.com). It will inform you about malware (virus, trojans, worms) on your device and allows you to upload any unknown applications to Virustotal.
(APK at the bottom of the page)
1. From the Main Menu scroll to hover over Settings.
2. Click My Fire TV.
3. Choose Developer Options.
4. Click Apps from Unknown Sources.
5. Choose Turn On.
6. Go to About — Network and confirm your IP Addresss
Install the APK from the link below