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 20 of 267 for “"Attackers"”.
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Characterizing anti-forensic attackers in cybersecurity domains with Stackelberg planning
… networks, defenders must strategically force attackers into either objective failure or leaving a detectable footprint. This research addresses this defensive gap by applying Automated Planning to model a self-cleaning adversary within a state-based environment. Utilizing a Stackelberg …
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Protecting Vehicles from Remote Attackers with Firewalls and Switched Networks
… alarmingly more common over the past decade. Attackers often can compromise a single Electronic Control Unit (ECU) in the In-Vehicle Network (IVN) and then use it to send malicious messages that can cause a vehicle to stop, turn, or even crash. It is critical that we find a way to block or …
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Raising the bar for password crackers: improving the quality of honeywords with deep neural networks
… the majority of existing research assumes that attackers have no knowledge about users, which is a flawed assumption. In this thesis, we introduce two honeyword generation techniques (HGT): Honey-GAN and Chunk-GPT3, which can generate honeywords resistant to trawling attacks and targeted …
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Missile allocation models for the attack of defended targets
… a fixed force of imperfect defense missiles. The attackers will be directed first at the defense sites then at the targets themselves. The imperfect defenders are used against the attackers on a onefor- one basis as long as defenders remain. If any attacker penetrates the defense site, all the …
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Robustifying Machine Learning based Security Applications
… amplified in security-critical applications — attackers can manipulate the inputs (i.e., adversarial examples) to cause machine learning models to make a mistake, and it's very challenging to obtain a large amount of attackers' data. These make applying machine learning in security-critical …
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Applying mobile agents technology to intrusion detection and response
… of intrusion detection systems (IDSs) advance, attackers may disable organizationsa?? IDSs before attempting to penetrate more valuable targets. To counter this threat, we present an IDS architecture that is resistant to flooding denial of service (DoS) attacks. The architecture frustrates …
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Inference of Cyber Threats, Vulnerabilities, and Mitigations to Enhance Cybersecurity Simulations
… modeling the interaction between cybersecurity attackers and defenders on a given network in a zero-sum game. We apply coevolution in a novel multi-step feedback framework to improve performance in modelling attacks, and find that allowing attackers to dynamically select their attack strategies …
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Dealing With Misbehavior In Distributed Systems: A Game-Theoretic Approach
… form games to analyze the interactions of the attackers and the defender in a security game involving honeypots.</p> <p>Multicast cost sharing is an important problem and very few distributed strategyproof mechanisms exist to calculate the costs shares of the users. These mechanisms are …
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Understanding and Combating Online Social Deception
… (SNSs) have become more sophisticated, cyber attackers have found ways to exploit them for harmful activities such as financial fraud, privacy violations, and sexual or labor exploitation. Thus, it is imperative to gain an understanding of these activities and develop effective countermeasures …
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A Measurement Approach to Understanding the Data Flow of Phishing From Attacker and Defender Perspectives
… attacker and defender perspectives. First, from attackers' perspective, we want to know how attackers collect the sensitive information stolen from victims throughout the end-to-end phishing attack process. So we collected more than 179,000 real-world phishing URLs. Then we build a measurement …
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Polymorphic Adversarial DDoS attack on IDS using GAN
… ability using ML algorithms. As a result, attackers look for new methods to evade the IDS. Polymorphic attacks are favorites among the attackers as they can bypass the IDS. GAN is a method proven in generating various forms of data. It is becoming popular among security researchers as it …
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Redistributing the Costs of Volumetric Denial-of-Service Mitigation
… bottlenecks, towards the network edge and onto attackers themselves. We observe that the vast majority of attacks rely on a small subset of packet types which are individually identical to legitimate packets, but generated far more often by attackers than by regular clients. Making such packets …
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Adaptive Beam Management for Secure mmWave Communication
… that avoids probing the directions of potential attackers. We employ a reinforcement learning agent to control the probing and dynami- cally restrict sweeps to a subset of beams in the millimeter wave transmitter codebook to avoid the locations of potential attackers based on a proposed metric …
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Performance Analysis of Cyber Deception Using Probabilistic Models
… new techniques for thwarting cyber attackers are required. Deception is the a mechanism that at- tempts to distort or misled an adversary. It is a proven tactic leveraged in traditional warfare with a long history of noted successes. While deception has seen great success in …
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Mobile Banking Security Using GPS and LDPC Codes
… of the most targeted groups of information by attackers. To secure these mobile freedoms, this paper presents a system to secure mobile banking procedures using global positioning systems (GPS) within mobile devices, and low density parity codes (LDPC). The approach is to determine a user's …
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An Investigation into the Ecology and Evolution of Caterpillar Eyespots
… and thereby protect prey species from their attackers. Eyespots are particularly widespread and diverse in lepidopteran caterpillars, and these caterpillars with eyespots are typically assumed to be snake-mimics. Yet a dearth of empirical investigation has left us without evidence that …
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Dynamic Redundancy Management of Multisource Multipath Routing Integrated with Voting-based Intrusion Detection in Wireless Sensor Networks
… Compromised nodes are essentially inside attackers and can perform various attacks to break the functionality of the system. Thus, for safety-critical WSNs, intrusion detection techniques must be used to detect and remove inside attackers and fault tolerance techniques must be used to …
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Quantitative Metrics and Measurement Methodologies for System Security Assurance
… may not capture the capabilities of advanced attackers. Also, many proactive measures (e.g., data pointer protection or data flow integrity) suffer performance bottlenecks. This dissertation identifies and represents attack vectors as metrics using the knowledge from advanced exploits and …
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Design, Implementation and Experiments for Moving Target Defense Framework
… firewalls, and encryption to prevent attackers from taking control of the system. However, given sufficient time and resources, all these methods can be defeated, especially when dealing with sophisticated attacks from advanced adversaries that leverage zero-day exploits.
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Countering Cybersecurity Vulnerabilities in the Power System
… power grid security, which can be exploited by attackers if not properly addressed. Every month, many vulnerabilities are discovered and all the vulnerabilities must be remediated in a timely manner to reduce the chance of being exploited by attackers. In current practice, security operators …
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