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Patent

Full-duplex medium tap apparatus and system

TLDR
In this paper, a bi-directional network medium monitor including a tap apparatus connected inserted in a network media, including a transceiver and a clock recovery element for each medium and medium monitor connection, is presented.
Abstract
A bi-directional network medium monitor including a tap apparatus connected inserted in a network media, e.g. Fiber Optic (FX) and Twisted Pair (TX), comprising a transceiver and a clock recovery element for each medium and medium monitor connection, and a bi-directional serial data multiplexer which directs the medium data while in the serial data format. Also, the medium monitor may interrupt medium data transfer in either medium direction and insert its data for diagnostic or other network purposes. Thus, the apparatus according to the present invention is operable to monitor a network at the maximum data rates currently used while providing no significantly network data delay.

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Patent

Electronic message analysis for malware detection

TL;DR: In this paper, an electronic message is analyzed for malware contained in the message and the analysis may include replaying the suspicious URL in a virtual environment which simulates the intended computing device to receive the electronic message, if the replayed URL is determined to be malicious, the malicious URL is added to a black list which is updated throughout the computer system.
Patent

Dynamic signature creation and enforcement

TL;DR: In this article, a dynamic signature creation and enforcement system can comprise a tap configured to copy network data from a communication network, and a controller coupled to the tap, which is configured to analyze the copy of the network data with a heuristic to determine if the data is suspicious, flag the data as suspicious based on the heuristic determination.
Patent

Heuristic based capture with replay to virtual machine

TL;DR: In this paper, a suspicious activity capture system can comprise a tap configured to copy network data from a communication network, and a controller coupled to the tap, which is configured to analyze the copy of the network data with a heuristic to flag the data as suspicious and simulate transmission of the data to a destination device.
Patent

Network-Based Binary File Extraction and Analysis for Malware Detection

TL;DR: In this paper, a system and method for network-based file analysis for malware detection is described, where a binary file including the binary packet is extracted from the network content and determined whether the extracted binary file is detected to be malware.
Patent

Virtual machine with dynamic data flow analysis

TL;DR: In this paper, the authors propose a suspicious activity capture system, which consists of a tap configured to copy network data from a communication network, and a controller coupled to the tap.
References
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Patent

Security system for a network concentrator

Ilan Carmi
TL;DR: In this paper, each port of the network is provided with a security entity which monitors the communication between one port to the other and compares the destination and source address of the data packet with the affiliated port address.
Patent

Method and apparatus for regulating data flow in networks

TL;DR: In this article, the authors propose a delay interval based on a time to transmit a data packet at the network rate and a desired transmission rate to ensure that the overall output transmission rate of the network station corresponds to the assigned desired rate.
Patent

Synchronous FIFO having an alterable buffer store

TL;DR: In this article, a synchronous first-in-first-out (FIFO) with an alterable buffer store includes a dual-ported, random access memory (RAM) based memory device incorporating conventional "empty" and "full" flags while also providing an alternate mode of operation in which the inhibiting effects of the 'empty' and 'full' flags are disabled whereby information contained within the FIFO may be modified before being read out.
Patent

Network switch that includes a plurality of shared packet buffers

TL;DR: In this paper, the authors propose a network switch for transferring packets of information including a plurality of shared packet buffers for the plurality of network ports, and a switch controller for controlling transfer of data packets between the network ports and the packet buffers.
Patent

Subscriber initiated non-intrusive network-based analysis of facsimile transmissions

TL;DR: In this paper, a real-time monitoring and analysis of facsimile transmissions is presented, where analog impairment measurements are made on the high speed page signal and protocol analysis is made on low speed control messages in those transmissions.