DEX FILE BINARY OBFUSCATION METHOD IN ANDROID SYSTEM

摘要

The present invention provides a DEX file binary obfuscation method in an Android system, which comprises: a DEX file extraction step for extracting a DEX file corresponding to an execution code of an APK file by unpacking the APK file which modifies the DEX file so as not to unpack the DEX file using a tool such as reverse compiler though control flow conversion which divides a Method and changes a location; a specific value addition step for adding a value to the Method; a division and location change step for dividing the Method to change the location; a repackaging step for regenerating the DEX file into an APK file; and a sign step for normally executing the APK file.