LeakMiner: Detect Information Leakage on Android with Static Taint Analysis

With the growing popularity of Android platform, Android application market becomes a major distribution center where Android users download apps. Unlike most of the PC apps, Android apps manipulates personal information such as contract and SMS messages, and leakage of such information may cause great loss to the Android users. Thus, detecting information leakage on Android is in urgent need. However, till now, there is still no complete vetting process applied to Android markets. State-of-the-art approaches for detecting Android information leakage apply dynamic analysis on user site, thus they introduce large runtime overhead to the Android apps. This paper proposes a new approach called Leak Miner, which detects leakage of sensitive information on Android with static taint analysis. Unlike dynamic approaches, Leak Miner analyzes Android apps on market site. Thus, it does not introduce runtime overhead to normal execution of target apps. Besides, Leak Miner can detect information leakage before apps are distributed to users, so malicious apps can be removed from market before users download them. Our evaluation result shows that Leak Miner can detect 145 true information leakages inside a 1750 app set.