Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"intrusion prevention"”.
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Enhanced classification of network traffic data captured by intrusion prevention systems
… in modern computer networks is the deployment of Intrusion Prevention Systems (IPSs) for the purpose of identifying security threats. Such systems provide alerts on suspicious activities based on a predefined set of rules. These alerts almost always contain high percentages of false positives and …
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Network intrusion prevention in the evolved packet core utilising software defined networks and network function virtualisation
… most likely goal. Therefore a Network Intruder Prevention System (NIPS) is proposed that will limit the paths that are allowed within the CN and detects whenever an attempt is made to traverse a non critical network path. This will greatly increase the probability of an attacker being detected. …
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A theory for the design and analysis of firewalls
… are the most critical and widely deployed intrusion prevention systems. A firewall is a security guard placed at the point of entry between a private network and the outside Internet such that all incoming and outgoing packets have to pass through it. The function of a firewall is to …
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Dynamic Redundancy Management of Multisource Multipath Routing Integrated with Voting-based Intrusion Detection in Wireless Sensor Networks
… captured or compromised. Once compromised, intrusion prevention methods such as encryption can no longer provide any protection, as a compromised node is considered a legitimate node and possesses the secret key for decryption. Compromised nodes are essentially inside attackers and can …
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Securing Software-Defined Network Enabled Enterprises Against Insider Threats
… Our first solution is an SDN controller-agnostic Intrusion Prevention System (IPS) capable of detecting malicious forwarding devices independent of the underlying hardware and software. We leverage the SDN capabilities to retrieve the actual and expected packet trajectories and devise algorithms …
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Analysis of Firmware Security in Embedded ARM Environments
… when it comes to implementing state of the art intrusion prevention and detection solutions. These solutions are costly in terms of energy, execution time, circuit board area, and capital. Sustainable Internet of Things devices and power-constrained embedded systems are thus forced to make …
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Multi-Agent Reinforcement Learning for Intrusion Detection
… hand-coded solutions emulating simple misuse intrusion detection and a hybrid approach using misuse and anomaly methods. We found that our learning approach generates better results than the simple hand-coded misuse methods. Even though the hybrid hand-coded approach shows slightly better …
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Information-fusion-based methods to improve the detection of advanced cyber threats
… to protect systems against malicious threats. Intrusion detection is an essential strategy that, together with intrusion prevention and response, make systems more resilient against malicious access. The challenges that are faced while developing intrusion detection systems (IDSes) are …
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Using detection in depth to counter SCADA-specific advanced persistent threats
… Primarily, the integration of flow-based intrusion detection systems, passive device fingerprinting, low- interaction honeypots, and traditional signature- based intrusion detection technologies provides a highly effective capacity for detecting common attack vectors used by APTs. Finally …
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Autonomous Cyber Defense for Resilient Cyber-Physical Systems
… task, we mainly focus on developing an automated intrusion response system (IRS) for CPSs. We aim to design the IRS with effective and efficient responses by reducing a false alarm rate and defense cost, respectively. Specifically, We build a lightweight IRS for an in-vehicle controller area …
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A Multi-Agent Defense Methodology with Machine Learning against Cyberattacks on Distribution Systems
… network level mitigation. Since the execution of intrusion detection systems and mechanisms such as the ones proposed in this dissertation may deter attackers from directly attacking the power grid, attackers may perform a supply chain cyberattack to yield the same results. Although, supply chain …