Methods and systems to detect an evasion attack

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8613088
APP PUB NO 20070192861A1
SERIAL NO

11552025

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and system to detect an evasion attack are provided. The system may include a repository to store signature fragments that together constitute an attack signature, an interceptor to intercept a data packet associated with a network connection, a string-matching module to determine whether the payload of the data packet includes any of the stored signature fragments thereby identifying a match, a responder to perform a prevention action in response to the match, and a detector to detect that a size of the data packet is less than a size threshold. The system may further include a state machine to commence maintaining a state for the network connection in response to the detector determining that the size of the data packet is less than the size threshold.

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Patent Owner(s)

  • CISCO TECHNOLOGY, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bonomi, Flavio Giovanni Palo Alto, US 20 581
Fingerhut, John Andrew Mission Viego, US 26 556
Varghese, George Sunnyvale, US 55 4329

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