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:
Nov. 25, 2025
Filed:
Jun. 30, 2023
Applicant:
Airgap Networks Inc., Santa Clara, CA (US);
Inventors:
Raymond Wing Chon Cheh, Sunnyvale, CA (US);
Satish M. Mohan, San Jose, CA (US);
Vinay Adavi, Sunnyvale, CA (US);
Ritesh R. Agrawal, San Jose, CA (US);
Assignee:
Zscaler, Inc., San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/40 (2022.01); H04L 61/5014 (2022.01);
U.S. Cl.
CPC ...
H04L 63/1441 (2013.01); H04L 61/5014 (2022.05); H04L 63/1408 (2013.01);
Abstract
A technique to stop lateral movement of ransomware between endpoints in a VLAN is disclosed. A security appliance is set as the default gateway for intra-LAN communication by overwriting the DHCP responses. Message traffic from compromised endpoints is detected. Attributes of ransomware may be detected in the message traffic, as well as attempts to circumvent the security appliance. Compromised devices may be quarantined by assigning them the default gateway to a preset blackhole IP address.