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:
Dec. 17, 2013
Filed:
May. 22, 2007
Jonathan James Oliver, Kew, AU;
Yun-chian Cheng, Merced, CA (US);
Jonathan James Oliver, Kew, AU;
Yun-Chian Cheng, Merced, CA (US);
Trend Micro Incorporated, Tokyo, JP;
Abstract
Botnet attacks may be detected by collecting samples of spam messages, forming clusters of related spam messages, and identifying the source or sources of the related spam messages. The related spam messages may be identified as those generated using the same template. For example, spam messages generated using the same image template, text template, or both may be deemed as related. To find related spam messages, images of spam messages may be extracted and compressed using a lossy compression algorithm. The compressed images may then be compared to one another to identify those generated using the same image template. The lossy compression algorithm may involve dividing an image into several blocks and then computing a value for each block for comparison.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile