Patent 7584364 was granted and assigned to Microsoft on September, 2009 by the United States Patent and Trademark Office.
A method of code obfuscation includes receiving a code segment. The existing code of the code segment is modified and/or additional code injected to create overlapped code. The overlapped code performs a plurality of semantically different actions depending upon the content of execution. The resulting obfuscated code having overlapped code is then output.