公开(公告)号：US12301620B2

公开(公告)日：2025-05-13

申请号：US17653379

申请日：2022-03-03

Applicant: Avast Software s.r.o.

Inventor： David Jursa ,  Jiří Šembera ,  Peter Kováč ,  Tomáš Trnka ,  Elnaz Babayeva

IPC: H04L9/40 ,  G06F16/955

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.