Reverse analysis method for intelligent terminal firmware of power grid sensing layer

The invention discloses a power grid perception layer intelligent terminal firmware reverse analysis method, which comprises the following steps that firmware package extraction is carried out on a power internet of things terminal, the power internet of things terminal carries an embedded operating system, a file system and software, is provided with a network communication unit, and carries out firmware file and code reverse extraction; according to the method, a firmware package is obtained, a firmware program, a code and a file system in the firmware package are obtained, firmware program extraction and readability representation are carried out by analyzing a firmware format and selecting a firmware extraction technology or a program representation technology, a data set comprising a plurality of pieces of data is pre-stored, and each piece of data comprises a corresponding relation between a firmware assembly code and a high-level language or descriptive language statement. The method comprises the foll