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:
Nov. 02, 2021
Filed:
Jul. 17, 2019
AO Kaspersky Lab, Moscow, RU;
AO KASPERSKY LAB, Moscow, RU;
Abstract
Disclosed herein are systems and methods for generating heuristic rules for identifying spam emails. In one aspect, an exemplary method comprises, collecting and analyzing statistical data on contents of a emails to identify different types of content, including headers or hyperlinks, grouping the emails into clusters based on identified types of content, at least one cluster including groups of fields in the headers of said emails, selecting at least one most frequent combination of groups of data in each cluster, generating a hash from the at least one most frequent combination of groups, formulating at least one regular expression based on an analysis of hyperlinks corresponding to the generated hashes, and generating at least one heuristic rule for identifying emails containing spam by combining at least one hash and the corresponding regular expression, wherein at least one hash is from sequences of fields in the headers of said emails.