PSCAN: A Port Scanning Network Covert Channel

Mohamed, Emad Eldin; Mnaouer, Adel Ben; Barka, Ezedin

doi:10.1109/lcn.2016.109

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2021

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“…An example of such a method has been described in [ 36 ]. Another solution for the timing covert channel has been presented in [ 37 ]. This covert channel was implemented by scanning TCP ports in a specific order.…”

Section: Related Workmentioning

confidence: 99%

StegoFrameOrder—MAC Layer Covert Network Channel for Wireless IEEE 802.11 Networks

Sawicki

Bieszczad

Piotrowski

2021

Sensors

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The proposed StegoFrameOrder (SFO) method enables the transmission of covert data in wireless computer networks exploiting non-deterministic algorithms of medium access (such as the distributed coordination function), especially in IEEE 802.11 networks. Such a covert channel enables the possibility of leaking crucial information outside secured network in a manner that is difficult to detect. The SFO method embeds hidden bits of information in the relative order of frames transmitted by wireless terminals operating on the same radio channel. The paper presents an idea of this covert channel, its implementation, and possible variants. The paper also discusses implementing the SFO method in a real environment and the experiments performed in the real-world scenario.

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Section: Related Workmentioning

confidence: 99%