The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2020
Filed:
Oct. 06, 2016
Shouhuai Xu, Helotes, TX (US);
Moustafa Elsayed Saleh, San Antonio, TX (US);
Edward Paul Ratazzi, Rome, NY (US);
Shouhuai Xu, Helotes, TX (US);
Moustafa Elsayed Saleh, San Antonio, TX (US);
Edward Paul Ratazzi, Rome, NY (US);
Other;
Abstract
Disclosed herein are new methods and systems for detecting obfuscated programs. We build a recursive traversal disassembler that extracts the control flow graph of binary files. This allows us to detect the presence of interleaving instructions, which is typically an indication of the opaque predicate anti-disassembly trick. Our detection system uses some novel features based on referenced instructions and the extracted control flow graph that clearly distinguishes between obfuscated and normal files. When these are combined with a few features based on file structure, we achieve a very high detection rate of obfuscated files.