Anomaly detection through header field entropy

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United States of America Patent

PATENT NO 11496377
APP PUB NO 20200313986A1
SERIAL NO

16846149

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Abstract

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An approach for detecting anomalous flows in a network using header field entropy. This can be useful in detecting anomalous or malicious traffic that may attempt to “hide” or inject itself into legitimate flows. A malicious endpoint might attempt to send a control message in underutilized header fields or might try to inject illegitimate data into a legitimate flow. These illegitimate flows will likely demonstrate header field entropy that is higher than legitimate flows. Detecting anomalous flows using header field entropy can help detect malicious endpoints.

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Patent Owner(s)

  • CISCO TECHNOLOGY, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alizadeh, Attar Mohammadreza Cambridge, US 23 2403
Gandham, Shashidhar Fremont, US 70 4041
Pang, Jackson Ngoc Ki Sunnyvale, US 42 3117
Spadaro, Roberto Fernando Milpitas, US 16 1163
Yadav, Navindra Cupertino, US 244 11738

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