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:
May. 26, 2015
Filed:
Apr. 18, 2013
Applicants:
Cheng Zhang, Nanjing, CN;
Weisheng Xue, Nanjing, CN;
Qiuer Xu, Nanjing, CN;
Inventors:
Assignee:
Trend Micro Incorporated, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 21/52 (2013.01); G06F 21/55 (2013.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
G06F 21/52 (2013.01); H04L 63/1416 (2013.01); G06F 21/554 (2013.01);
Abstract
Detection of an encryption or compression application program may be based on similarity between read files read by a process of the application program and write files written by the process. Read fingerprints of the read files and write fingerprints of the write files are generated. A listing of the read fingerprints is searched for presence of matching write fingerprints to find matched fingerprints. The similarity is calculated based on the read fingerprints and matched fingerprints.