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. 10, 2013
Filed:
Feb. 10, 2011
Roman V. Rybalko, Moscow, RU;
Roman V. Rybalko, Moscow, RU;
Kaspersky Lab Zao, Moscow, RU;
Abstract
A computer-implemented system and method for detecting, by a mail server module, spam bot activity by a client device. An email session is conducted between the mail server module and the client device according to a predetermined protocol that includes exchange of messages between the mail server module and the client device. The mail server module probes compliance with the predetermined protocol including: purposefully introducing at least one irregularity into a first message from the mail server module; monitoring a subsequent message transmission from the client device; comparing the subsequent message against reference criteria; and producing a reputability determination for the client device based on an extent to which the subsequent message was a proper response to the at least one irregularity according to the predetermined protocol, the reputability determination being indicative of a likelihood that the client device conducts spam bot activity.