Thwarting drone-waged denial of service attacks on a network

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United States of America Patent

PATENT NO 9578055
SERIAL NO

12357372

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Abstract

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Embodiments are directed towards detecting and thwarting incoming network requests by either throttling and/or redirecting the attack requests towards a honeypot. As network requests are received, TCP segments are examined to identify a presence of attack signatures before returning an ACK. Such attack signatures may identified based on an absence of referrer headers, an invalid cookie, known improper sender addresses, known valid sender addresses, examination of OSI layer 4 and/or above content of a packet, or the like. If an attack is identified, throttling may be employed by responding to the attack requests by dropping and/or rejecting packets within the request, acknowledging the client device's packets at a byte level, modifying a round trip time (RTT) calculation by responding at a defined slowed rate, and/or redirecting client requests to a honeypot.

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Patent Owner(s)

  • F5 NETWORKS, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Khanal, Bhushan P Seattle, US 2 26

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