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.

Date of Patent:
Jun. 04, 2019

Filed:

Dec. 23, 2014
Applicant:

Mcafee, Inc., Santa Clara, CA (US);

Inventors:

Amit Malik, Bangalore, IN;

Vikas Taneja, Bangalore, IN;

Benjamin Cruz, Santa Clara, CA (US);

Assignee:

McAfee, LLC, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 21/56 (2013.01); G06F 21/57 (2013.01);
U.S. Cl.
CPC ...
G06F 21/562 (2013.01); G06F 21/566 (2013.01); G06F 21/577 (2013.01); G06F 2221/034 (2013.01);
Abstract

By hooking application programming interfaces in an execution environment, the return address for hooked application programming interface calls can be logged and used to determine when a packed binary has been unpacked. In one approach, memory allocations are detected and the return address is checked against the memory regions allocated. In another approach, the contents of memory at the return address in a pre-execution copy of the executable binary is compared with the contents of memory at the return address in the executing copy of the binary. This allows efficient detection of the completion of unpacking without knowledge of the unpacking technique. The unpacked binary may then be analyzed for possible malware.


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