System and method of detecting whether a source of a packet flow transmits packets which bypass an operating system stack

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United States of America Patent

PATENT NO 11902121
APP PUB NO 20220407787A1
SERIAL NO

17822656

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Abstract

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A method includes capturing first data associated with a first packet flow originating from a first host using a first capture agent deployed at the first host to yield first flow data, capturing second data associated with a second packet flow originating from the first host from a second capture agent deployed on a second host to yield second flow data and comparing the first flow data and the second flow data to yield a difference. When the difference is above a threshold value, the method includes determining that the second packet flow was transmitted by a component that bypassed an operating stack of the first host or a packet capture agent at the device to yield a determination, detecting that hidden network traffic exists, and predicting a malware issue with the first host based on the determination.

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Patent Owner(s)

  • CISCO TECHNOLOGY INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Shih-Chun San Jose, US 70 3027
Deen, Khawar Sunnyvale, US 55 3742
Gandham, Shashidhar Fremont, US 70 4041
Gupta, Anubhav Fremont, US 123 3214
Prasad, Rohit Chandra Sunnyvale, US 30 2405
Singh, Abhishek Ranjan Pleasanton, US 52 2945
Yadav, Navindra Cupertino, US 244 11738

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