Unified Protection Model of Application Files and User Files

Computer file is the main target of computer viruses. In order to protect the user files, User's intentions is introduced in this paper, its main idea is that whether meet the user's intentions is the sole criterion to determine whether a program contains malicious. In addition, through make some access control rules for application files, the application files can be greatly protected. The paper integrates and expands these two ideas to construct a Unified Protection Model, and proves that the model has good safety properties, which can effectively protect the user files and application files.