5 papers
Tractable Defense against Advanced Persistent Threats in Networked Settings
Brandon Collins, Keith Paarporn, Shouhuai Xu +1
Recently, the theory of Boolean Dynamical Systems was proposed to study the decision theory surrounding the defense of computer networks against Advanced Persistent Threats (APTs).…
Networked Multi-Resource Defense Capabilities in a General Lotto Game
Faezeh Shojaeighadikolaei, Keith Paarporn
Ensuring the security of complex systems involves the strategic allocation of defensive resources to prevent various types of attacks from succeeding. A defender often has multiple…
Optimizing Preventive and Reactive Defense Resource Allocation with Uncertain Sensor Signals
Faezeh Shojaeighadikolaei, Shouhuai Xu, Keith Paarporn
Cyber attacks continue to be a cause of concern despite advances in cyber defense techniques. Although cyber attacks cannot be fully prevented, standard decision-making frameworks…
Efficient State Estimation of a Networked FlipIt Model
Brandon Collins, Thomas Gherna, Keith Paarporn +2
The Boolean Kalman Filter and associated Boolean Dynamical System Theory have been proposed to study the spread of infection on computer networks. Such models feature a network whe…
Analysis of Contagion Dynamics with Active Cyber Defenders
Keith Paarporn, Shouhuai Xu
In this paper, we analyze the infection spreading dynamics of malware in a population of cyber nodes (i.e., computers or devices). Unlike most prior studies where nodes are reactiv…