US 11,870,808 B1
Mobile device security application for malicious website detection based on representative image
Nicolás Chiaraviglio, Barcelona (ES); Ryan Chazen, South Africa (ZA); Elad Golan, Even-Yehuda (IL); Izhak Kedar, Tel-Aviv (IL); Massimo Dragano, Gzira (MT); and Asaf Peleg, Kadima-Zoran (IL)
Assigned to Zimperium, Inc., Dallas, TX (US)
Filed by Zimperium, Inc., Dallas, TX (US)
Filed on Nov. 14, 2022, as Appl. No. 17/986,853.
Application 17/986,853 is a continuation of application No. 16/714,459, filed on Dec. 13, 2019, granted, now 11,528,297.
Claims priority of provisional application 62/947,487, filed on Dec. 12, 2019.
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 9/40 (2022.01); G06V 30/418 (2022.01)
CPC H04L 63/1483 (2013.01) [G06V 30/418 (2022.01); H04L 63/1433 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method comprising:
retrieving, by a mobile device, a representative image of an unknown website detected by the mobile device;
determining, by the mobile device, whether the representative image matches an image of a known legitimate website by:
removing a transparency layer from the representative image to form a modified representative image;
comparing the modified representative image to a set of known images, each of the known images corresponding to one or more respective known websites, each of the known images not having a transparency layer, wherein transparent features are compared in the comparing; and
determining that the representative image matches at least one of the known images based on the comparing;
responsive to determining that the representative image matches the image of the known legitimate website, determining, by the mobile device, that the unknown website is malicious; and
performing, by the mobile device, a security action responsive to determining that the unknown website is malicious.