The Design And Implementation Of Security Detection Software Under Android Platform

Android is now one of the most popular mobile platforms. With the popularity of Android, Andr oid terminal system has become a breeding ground for malicious virus software. They brought serious damage to the user, by stealing user privacy, deducting use r fee s and destructing s ystems. Therefore, the research for security technology of Androi d platform is particularly important.In this paper, t he sandbox mechanism, application permis sions mechanism and procedures signature mechanis m of Andr oid system are st udied. On this basis, the security risks hide in systems i s analyzed. And then a security de tection syst em based on Android platform is designed and r ealized by using the static de tecting method c ombine d wit h t he dynamic detecting method. The system includes four modules: anti-virus scanning module, securit y moni toring module, anti-theft module and security l ogs module. The cor e modules of the system are the anti-virus scanning module and the sec urity monitoring module which used t o detect t he malware in Androi d system.Anti-virus s canning module designe d i n systems is mainly misuse intrusion detection me thod based on vi rus signatures. An eigenvalues tha t ide ntifies malware uniquely obtained in this paper using the MD5 a lgorithm to generate virus signature database. When scanning, through package name and signature, the anti- virus module e xtracts applications’ fea tures using the MD5 algori thm. M atch t he si gnatures of applicat ion wit h t he signatures of virus, to detect malware. Howe ver, the anti-virus scanning module which rea liz ed in this paper can accura tel y detect the virus i n the virus signature database, but it c an’t detect unknown malware.In order to proactively det ect unknown malware, a security monitori ng modul e is designed whic h use the dynamic detecting method to monitor t he behavior of Android system. The potential security risks of Android are analyze d, and t he principle of traffic detection is s tudied. In or der to avoid the attacks from malware, the security monitoring module monitors the functions of SM S, call, and t he tr affic of network have been monitored too.Finally, a security det ection system designed in this paper i s insta lle d on Android mobile phones to do unit testing, integration test ing, and system te sting. The e xperiments show that the security detection system is effective, stable and low consumption inprotecting the safety of mobi le phone use r s.