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 13 of 13 for “"Threat actors"”.
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Behaviour-based classification of encryption-type ransomware using system calls
The malware landscape is ever-changing, with threat actors utilising more sophisticated techniques to compromise data. As the usage of smartphones increases, more threat actors will turn their attention to capitalise on the popularity. This thesis addresses this ongoing issue and focuses on …
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Towards Secure and Trustworthy Cyberspace: Social Media Analytics on Hacker Communities
… media analytics capable of gathering cyber threat intelligence from hacker communities for exchanging hacking knowledge and tools. My dissertation addressed two broad research questions: (1) How do we help organizations gain cyber threat intelligence through social media analytics on hacker …
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Determining vulnerability using attach graphs: an expansion of the current FAIR model
… a framework for measuring and understanding factors that contribute to information risk. One such factor is FAIR Vulnerability; the probability that an event involving a threat will result in a loss. An asset is vulnerable if a threat actor’s Threat Capability is higher than the Resistance …
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Detection of HTTPS malware traffic without decryption
… that this number will increase [8]. However, threat actors are also increasingly using the TLS protocol to hide malicious activities such as Command and Control, loading malware into a network, and exfiltration of sensitive data. The use of TLS by threat actors poses a challenge to security …
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Evolving Threat Narratives: The Case of China's Transition from Foe to Friend during Rapprochement
… to better understand the nature of American threat narratives, how narratives evolve, what drives the change, and finally, what it all means for perceptions of threat to the US. The purpose of this study is to understand the implications of bias on evolving threat narratives and threat …
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Digital Dictators: How Different Types of Authoritarian Regimes Use Cyber Attacks to Legitimize Their Rule
… on digitized technologies and cyberspace, threat actors have been aggressively exploiting these changes to their own advantage. Of particular concern to academics, cyber experts and national security practitioners in the West, has been the rapid proliferation of damaging and disruptive …
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Applying Systems Theory to Analyze Cyber Resiliency of Naval Engineering Systems
… worlds, our naval engineering systems face new threats that could compromise and damage essential engineering components. Potentially, access to these physical systems by threat actors through the cyber interactions could render a ship useless if proper response is not taken. Therefore, these …
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A novel flow-based statistical pattern recognition architecture to detect and classify pivot attacks
… or pivoting is a well-known technique used by threat actors to cover their tracks and overcome connectivity restrictions imposed by the network defences or topology. Therefore, detecting ongoing pivot attacks while the opponent has not yet achieved their goals is essential for a solid defence …
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Managed Anomaly Detection for Industrial Control Systems
… protocols and increasingly sophisticated threat actors, this makes ICSs a prime target for cyberattacks. Anomaly detection is a promising countermeasure which aims to detect attacks in their early stages; such data-driven measures—often using deep learning—do not require knowledge of the …
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Anomalous behaviour detection for cyber defence in modern industrial control systems
… critical infrastructure to sophisticated threat actors including increasingly hostile, well-organised cybercrimes and Advanced Persistent Threats. Besides external factors, the prevalence of insider threats includes malicious intent, accidental hazards and professional errors. The sensing …
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External enemies in contemporary disinformation discourse on the russia-ukraine war /
… enemy” types were Hacker Groups or Cyber Threat Actors and The Supernatural, which were used only once in each type and only by V. Zelenskyy. There he noticed that many fakes were being produced and he compared Russia to an evil entity out of this world. It is also worth noting that the …
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Distributed AI-defense for Cyber Threats on Edge Computing Systems
As cyber threat actors develop increasingly sophisticated strategies, cutting-edge cyber security has become a necessity for industry organizations and government agencies. A deluge of novel threat strategies has overwhelmed many state-of-the-art cyber security models. Mutating hashes, complex …
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Improving social engineering resilience in enterprises
A Engenharia Social é um problema significativo para as empresas. Os cyber-criminosos continuam a desenvolver novos e sofisticados métodos para ludibriar indivíduos, levando-os a divulgar informações confidenciais ou a conceder acesso não autorizado a sistemas de infraestruturas. Estes ataques …