Columbia University

Yuan Jochen Kang

Salvatore J Stolfo

Mechanisms for defending a computing system from attack are provided. The mechanisms include: maintaining a round counter that tracks a round number for a local host; determining a location in a graph for each of a plurality of hosts including the local host; determining monitor hosts of the plurality of hosts that are monitoring the local host; determining monitoree hosts of the plurality of hosts that are being monitored by the local host; sending a message to each of the monitor hosts identifying a value of the round counter; forwarding a first set of heartbeat messages from previous monitoree hosts to the monitor hosts; attempting to receive messages from the monitoree hosts; determining whether any messages were not received from the monitoree hosts; and in response to determining that one or more messages were not received from the monitoree hosts, generating an alert.

Systems, methods, and media for defending computing systems from attack

Mechanisms for defending a computing system from attack are presented. The mechanisms include: maintaining a round counter that tracks a round number for a local host; determining a location in a graph for each of a plurality of hosts including the local host; determining monitor hosts of the plurality of hosts that are monitoring the local host; determining monitoree hosts of the plurality of hosts that are being monitored by the local host; sending a message to each of the monitor hosts identifying a value of the round counter; forwarding a first set of heartbeat messages from previous monitoree hosts to the monitor hosts; attempting to receive messages from the monitoree hosts; determining whether any messages were not received from the monitoree hosts; and in response to determining that one or more messages were not received from the monitoree hosts, generating an alert.

Growing community of inventors

New York, NY, United States of America

Yuan Jochen Kang