Network monitoring by using packet header analysis

摘要

A computer method and a system for detecting the file type of an electronic file, the method including the steps of: (a) using a predetermined number of bytes at the beginning of the file to create a list of probable file types; (b) testing the file against a detection rule for each file type in the list until a match is found; if no match is found (c) testing the file against other known detection rules for the types to find a match.

主权项

1. A method for detecting a file type, the method comprising the steps of:
evaluating a predetermined number of bytes at a beginning of a file to create a list of probable file types; testing the file against a detection rule for each file type in the list until a match is found; and when no match is found, testing the file against other known detection rules for file types that are not included in the list to find a match.