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Steganography is the art of passing information in a manner that the very existence of the message is unknown. The goal of steganography is to avoid drawing suspicion to the transmission of a hidden message. If suspicion is raised, then this goal is defeated. Steganalysis is the art of discovering and rendering useless such covert messages. In this paper, we identify characteristics in current steganography software that direct the steganalyst to the existence of a hidden message and introduce the ground work of a tool for automatically detecting the existence of hidden messages in images.