US 11,838,262 B1
Discovery of FQDN for target website
Santeri Kangas, Kirkkonummi (FI); Kimmo Kasslin, Espoo (FI); Leonardas Marozas, Vilnius (LT); and Filip Savin, Vilnius (LT)
Assigned to Cujo LLC, Covina, CA (US)
Filed by Cujo LLC, Walnut, CA (US)
Filed on Nov. 30, 2022, as Appl. No. 18/072,280.
Int. Cl. H04L 29/12 (2006.01); H04L 61/4511 (2022.01); H04L 61/09 (2022.01); H04L 9/40 (2022.01); H04L 67/02 (2022.01); G06F 15/16 (2006.01); G06F 16/901 (2019.01); H04L 101/618 (2022.01)
CPC H04L 61/4511 (2022.05) [H04L 61/09 (2022.05); H04L 63/14 (2013.01); H04L 67/02 (2013.01); H04L 2101/618 (2022.05)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method comprising:
intercepting a first data communication of a first connected device related to a first target website, wherein the first data communication identifies the first target website by a first fully qualified domain name (FQDN), and the first FQDN is mapped to a first Internet protocol (IP) address;
determining a pair of the first FQDN and the first IP address;
intercepting a second data communication of a second connected device related to a second target website, wherein the second data communication comprises a second encrypted FQDN of the second target website, and a second IP address of the second target website;
determining that the second IP address is equal to the first IP address of the pair;
retrieving a cybersecurity reputation of the second target website based on the first FQDN of the pair; and
in response to determining that the cybersecurity reputation of the second target website matches a predetermined alarm condition, enforcing a cybersecurity operation for the second data communication.