According to Jumptap, Android occupied 58.8% of the
mobile market in 2012 and the share was increasing [1].
Corresponds with the growth of Android’s market share, the
number of applications for android had an explosive growth.
Google announced that the download of its electronic
products has exceeded 25 billion and the applications have
exceeded 675 thousand [2]. What came along with the
increasing were lots of problems. Lots of malicious codes
were injected to the hot applications to execute malicious
behaviors and the behaviors led to great security threats.
Common results of malicious behaviors are divided into two
kinds: economic loss and privacy leakage.