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Full-Text Articles in Other Computer Sciences
Evaluating The Impacts Of Detecting X.509 Covert Channels, Cody Welu
Evaluating The Impacts Of Detecting X.509 Covert Channels, Cody Welu
Masters Theses & Doctoral Dissertations
This quasi-experimental before-and-after study examined the performance impacts of detecting X.509 covert channels in the Suricata intrusion detection system. Relevant literature and previous studies surrounding covert channels and covert channel detection, X.509 certificates, and intrusion detection system performance were evaluated. This study used Jason Reaves’ X.509 covert channel proof of concept code to generate malicious network traffic for detection (2018). Various detection rules for intrusion detection systems were created to aid in the detection of the X.509 covert channel. The central processing unit (CPU) and memory utilization impacts that each rule had on the intrusion detection system was studied and …
Matching Possible Mitigations To Cyber Threats: A Document-Driven Decision Support Systems Approach, Martha Wagner Mcneil
Matching Possible Mitigations To Cyber Threats: A Document-Driven Decision Support Systems Approach, Martha Wagner Mcneil
Masters Theses & Doctoral Dissertations
Cyber systems are ubiquitous in all aspects of society. At the same time, breaches to cyber systems continue to be front-page news (Calfas, 2018; Equifax, 2017) and, despite more than a decade of heightened focus on cybersecurity, the threat continues to evolve and grow, costing globally up to $575 billion annually (Center for Strategic and International Studies, 2014; Gosler & Von Thaer, 2013; Microsoft, 2016; Verizon, 2017). To address possible impacts due to cyber threats, information system (IS) stakeholders must assess the risks they face. Following a risk assessment, the next step is to determine mitigations to counter the threats …