US Patent 11431676 Method, apparatus, and system for detecting terminal security status

A method, an apparatus, and a system for detecting a terminal security status are provided. The method includes: receiving a file, and running the file, to generate a dynamic behavior result. The dynamic behavior result includes a behavior sequence that is generated according to a chronological order of occurrence of behaviors. When the file includes an APT, the security protection device obtains a stable behavior feature in the dynamic behavior result, generates a corresponding IOC according to the stable behavior feature, and sends the generated IOC to a terminal. The stable behavior feature is a behavior always existing in a behavior sequence that is generated each time after the file is run.