Results 221 to 230 of about 3,049 (257)

A comparative analysis of detection metrics for covert timing channels

Computers & Security, 2014
Methods to detect covert timing channels (CTCs) can be categorized into three broad classes: shape tests which include the Kolmogorov-Smirnov (KS) test, entropy tests which include first order entropy test, corrected conditional entropy (CCE) test, and Kullback-Leibler (KL) divergence test, and regularity tests.
Rennie Archibald, Dipak Ghosal
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On the Statistical Detectability of Covert Timing Channels

2023
Covert channels are methods to secretly convey information across communication networks by exploiting the characteristics of communication protocols in unexpected ways. Covert channels are computer attacks primarily used by malware or other illicit activities.
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A Classifier Method for Detection of Covert Channels over LTE

2017 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery (CyberC), 2017
With the rapid development of cellular network systems, LTE is turning to be a wonderful carrier for covert channels. In this paper, we present a method based on the k-nearest neighbor (KNN) classification for detecting hidden information in Sequence Number (SN) fields of PDCP and RLC layer, which is known as the most difficult covert storage channel ...
Zukui Wang, Liusheng Huang, Wei Yang 0011, Zhiqiang He   +3 more
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Detecting Covert Channels in FPS Online Games

2017 IEEE 42nd Conference on Local Computer Networks (LCN), 2017
Encryption is often not sufficient to secure communication, since it does not hide that communication takes place or who is communicating with whom. Covert channels hide the very existence of communication enabling individuals to communicate secretly.
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Using covert timing channels for attack detection in MANETs

MILCOM 2012 - 2012 IEEE Military Communications Conference, 2012
Mobile ad hoc networks (MANETs) are notoriously difficult to defend against attack. In this paper we demonstrate that by optimizing a previously reported covert timing channel, it is possible to simultaneously improve the reliability of the channel and create a metric that reliably detects attacks.
Jonathan J. Edwards, J. David Brown, Peter C. Mason   +2 more
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A Survey and Taxonomy Aimed at the Detection and Measurement of Covert Channels

Proceedings of the 4th ACM Workshop on Information Hiding and Multimedia Security, 2016
New viewpoints of covert channels are presented in this work. First, the origin of covert channels is traced back to acc ess control and a new class of covert channel, air-gap covert channels, is presented. Second, we study the design of covert channels and provide novel insights that differentiate the research area of undetectable communication from ...
Brent Carrara, Carlisle Adams
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A Protocol Independent Approach in Network Covert Channel Detection

2019 IEEE International Conference on Computational Science and Engineering (CSE) and IEEE International Conference on Embedded and Ubiquitous Computing (EUC), 2019
Network covert channels are used in various cyberattacks, including disclosure of sensitive information and enabling stealth tunnels for botnet commands. With time and technology, covert channels are becoming more prevalent, complex, and difficult to detect. The current methods for detection are protocol and pattern specific.
Md. Ahsan Ayub, Steven Smith, Ambareen Siraj   +2 more
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Exploiting Temporal Persistence to Detect Covert Botnet Channels

2009
We describe a method to detect botnet command and control traffic and individual end-hosts. We introduce the notion of destination traffic atoms which aggregate the destinations and services that are communicated with. We then compute the persistence, which is a measure of temporal regularity and that we propose in this paper, for individual ...
Giroire, Frédéric, Chandrashekar, Jaideep, Taft, Nina, Schooler, Eve, Papagiannaki, Konstantina   +4 more
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An Entropy-Based Approach to Detecting Covert Timing Channels

IEEE Transactions on Dependable and Secure Computing, 2011
The detection of covert timing channels is of increasing interest in light of recent exploits of covert timing channels over the Internet. However, due to the high variation in legitimate network traffic, detecting covert timing channels is a challenging task.
Steven Gianvecchio, Haining Wang 0001
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Covert Channel Detection Methods

2022 20th International Conference on Emerging eLearning Technologies and Applications (ICETA), 2022
Adrian Ondov, Pavol Helebrandt
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