Detecting Repackaged Android Applications

摘要: The rapid development of the smartphone brings immense convenience to people. Recently more and developers publish their own applications (or apps) on android markets make profits. so-called repackaged apps emerge by embedding malicious codes or injecting ads into existing then republishing them. In this paper, focusing shortcomings detection system, we propose an efficient scheme based context-triggered piecewise hash (CTPH). We also optimize similarity calculation method (edit distance) filter unnecessary matching process efficient. Experimental results show that there are about 5 % in pre-collected data. proposed improves accuracy has positive significance ecosystem markets.