itsMe Posted February 5, 2019 Share Posted February 5, 2019 This is the hidden content, please Sign In or Sign Up This is the hidden content, please Sign In or Sign Up This is the hidden content, please Sign In or Sign Up Fnord is a pattern extractor for obfuscated code Description Fnord has two main functions: Extract byte sequences and create some statistics Use these statistics, combine length, number of occurrences, similarity and keywords to create a YARA rule 1. Statistics Fnord processes the file with a sliding window of varying size to extract all sequences of with a minimum length -m X (default: 4) up to a maximum length -x X (default: 40). For each length, Fnord will present the most frequently occurring sequences -t X (default: 3) in a table. Each line in the table contains: Length Number of occurrences Sequence (string) Formatted (ascii/wide/hex) Hex encoded form Entropy This is the hidden content, please Sign In or Sign Up Link to comment Share on other sites More sharing options...
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