George Mason University

Other

National Improvement Company, Inc.

Eric B Robertson

Steven E Noel

Sushil Jajodia

John C Ibasfalean

Brian C O'Berry

Michael A Jacobs

Pramod Kalapa

Daniel D Ibasfalean

Robert G Weierbach

Sushil Jajodie

Disclosed is a system for correlating intrusion events using attack graph distances. The system includes an attack graph generator, an exploit distance calculator, an intrusion detector, an event report/exploit associator, an event graph creator, an event graph distance calculator, a correlation value calculator, and a coordinated attack analyzer. An attack graph is constructed for exploits and conditions in a network. The exploit distance calculator determines exploit distances for exploit pair(s). The intrusion detector generates event. Events are associated with exploits. Event graph distances are calculated. Correlation values are calculated for event pair(s) using event graph distances. The correlation values are analyzed using a correlation threshold to detect coordinated attacks.

Intrusion event correlation system

Disclosed is a system for modeling, analyzing, and responding to network attacks. Machines are mapped to components, components are mapped to vulnerabilities, and vulnerabilities are mapped to exploits. Each of the exploits includes at least one precondition mapped to at least one postcondition. An attack graph which defines inter-exploit distances is generated using at least one of the exploits. The attack graph is aggregated. At least one hardening option is determined using the aggregated attack graph. Hardening options include applying at least one corrective measure to at least one initial condition, where the initial condition is the initial state of a precondition.

Network attack modeling, analysis, and response

Intrusion event correlator

A fire safety device for closing through-holes in floors and walls and for thus stopping the potential spread of fire and smoke in case of the occurrence of a fire, includes a section of conduit, a cup-shaped retainer spaced from the outside surface of the conduit section so as to define an annular space therebetween, the annular space containing a suitable and pre-measured quantity of intumescent material, and a floating floor below the intumescent material which, in the event of fire, will move inwardly to occupy the interior space previously occupied by the conduit section.

Fire safety device

A fire safety device for closing through-holes in floors and walls and for thus stopping the potential spread of fire and smoke in case of the occurrence of a fire, includes a section of pipe having a weakened wall, a cup-shaped retainer spaced from the outside surface of the pipe section so as to define an annular space therebetween, the annular space in turn being provided with a suitable and pre-measured quantity of intumescent material. The device is pre-fabricated and thus avoids the problems inherent in attempting to manually provide the intumescent material in a collar during construction.

An emergency ladder system in which a flexible ladder is contained in a separate canister includes a flexible leader which exits the canister and is attached separate from the canister to a strong fixture, such as a hook, eye or cleat in a boat railing. A lanyard hangs from the canister, and a pull on the lanyard by, for instance, a person overboard causes the canister to open and the ladder to fall into an emergency position away from the canister.

Growing community of inventors

Vienna, VA, United States of America

Eric B Robertson