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. 15, 2020
Filed:
Nov. 13, 2018
AO Kaspersky Lab, Moscow, RU;
Denis O. Vlaznev, Moscow, RU;
Sergey V. Kubrin, Moscow, RU;
AO KASPERSKY LAB, Moscow, RU;
Abstract
Disclosed herein are systems and methods for generating a request for information on a file to perform an antivirus scan. In one aspect, an exemplary method comprises, intercepting the file, synchronously calculating a first hash of a portion of the file, searching in a verdict cache, when the hash is found, determining whether the hash belongs to a list of malicious files, when it belongs to the list of malicious files, synchronously calculating a second hash, searching for the second hash in the verdict cache, and pronouncing a final decision as to harmfulness of the file, when the first hash does not belong to the list of malicious files, granting access to the file, asynchronously generating a request for information about the file, calculating a second hash, searching for the information in a verdict cache, and pronouncing a decision as to harmfulness of the file.