Dynamically-loaded code analysis device, dynamically-loaded code analysis method, and dynamically-loaded code analysis program

A dynamically-loaded code analysis method performed by a dynamically-loaded code analysis device, wherein

• the dynamically-loaded code analysis device includes a memory that memorizes dynamically-loaded code information indicating a class structure of a dynamically-loaded code and call method information in which tag information added to user information is associated with a class structure of a code performed for the user information, for each of the dynamically-loaded codes acquired via a network, and
• the dynamically-loaded code analysis method includes
• an extraction step of detecting transmission of user information to another device and specifying tag information that matches the tag information added to the detected user information from the call method information memorized in the memory, to extract a class structure associated with the specified tag information by the dynamically-loaded code analysis device, and
• a specification step of searching the memory for dynamically-loaded code information indicating the extracted class structure, to specify a dynamically-loaded code corresponding to the searched dynamically-loaded code information by the dynamically-loaded code analysis device.