Automatic parsing of binary-based application protocols using network traffic
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United States of America Patent
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Feb 26, 2019
Grant Date -
Jan 12, 2017
app pub date -
Sep 21, 2016
filing date -
Jun 13, 2013
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Abstract
A method for analyzing a binary-based application protocol of a network. The method includes obtaining conversations from the network, extracting content of a candidate field from a message in each conversation, calculating a randomness measure of the content to represent a level of randomness of the content across all conversation, calculating a correlation measure of the content to represent a level of correlation, across all of conversations, between the content and an attribute of a corresponding conversation where the message containing the candidate field is located, and selecting, based on the randomness measure and the correlation measure, and using a pre-determined field selection criterion, the candidate offset from a set of candidate offsets as the offset defined by the protocol.
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