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 file types to find a match.

主权项

1. A method for detecting a file type, the method comprising the steps of:
creating by a computer system a list of probable file types for a file; evaluating by the computer system a detection rule for each file type in the list until a match of the file is found; and testing, responsive to not finding a match, the file by the computer system against other known detection rules for file types that are not included in the list to find a match.