Recently, As a android phone offers more superior functions and interface than an existing traditional phone, the number of user has been increased rapidly. But, the number of vulnerable android phone in security has been rising due to customizing the system of android phone for the convenience of user, there are many cases of customizing the system. Simultaneously a number of android phones which vulnerable to security increase Exponentially. Also, the number of malware which targets android phone increases Annually, namely the threat has intensified. In this thesis, we suggest the techniques and countermeasures against the attacks which target Aeronautical communication system by modulation of Android phone RF module.