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.

Date of Patent:
May. 13, 2025

Filed:

Mar. 03, 2022
Applicant:

Avast Software S.r.o., Prague, CZ;

Inventors:

David Jursa, Prague, CZ;

Jiří Šembera, Pardubice, CZ;

Peter Kováč, Prague, CZ;

Tomáš Trnka, Prague, CZ;

Elnaz Babayeva, Prague, CZ;

Assignee:

Avast Software s.r.o., Prague, CZ;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/40 (2022.01); G06F 16/955 (2019.01);
U.S. Cl.
CPC ...
H04L 63/1483 (2013.01); G06F 16/9566 (2019.01);
Abstract

Malicious redirects in a redirect chain as a result of loading a web address are detected and blocked. A suspicion score is determined for a subject redirection domain based at least in part on the subject redirection domain's web address, and a rate of occurrence of the subject redirection domain in redirect chains leading to a malicious landing domain is calculated. Loading the subject redirection domain is blocked if the suspicion score exceeds a suspicion threshold or the rate of occurrence of the subject redirection domain exceeds a rate of occurrence threshold.


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