19 citations · 26 across the 5 of their papers we have counts for
5 papers
Cloud Watching: Understanding Attacks Against Cloud-Hosted Services
Liz Izhikevich, Manda Tran, Michalis Kallitsis +2
Cloud computing has dramatically changed service deployment patterns. In this work, we analyze how attackers identify and target cloud services in contrast to traditional enterpris…
Aggressive Internet-Wide Scanners: Network Impact and Longitudinal Characterization
Aniket Anand, Michalis Kallitsis, Jackson Sippe +1
Aggressive network scanners, i.e., ones with immoderate and persistent behaviors, ubiquitously search the Internet to identify insecure and publicly accessible hosts. These scanner…
Detection of Sparse Anomalies in High-Dimensional Network Telescope Signals
Rafail Kartsioukas, Rajat Tandon, Zheng Gao +3
Network operators and system administrators are increasingly overwhelmed with incessant cyber-security threats ranging from malicious network reconnaissance to attacks such as dist…
Zooming Into the Darknet: Characterizing Internet Background Radiation and its Structural Changes
Michalis Kallitsis, Vasant Honavar, Rupesh Prajapati +2
Network telescopes or "Darknets" provide a unique window into Internet-wide malicious activities associated with malware propagation, denial of service attacks, scanning performed…
Efficient Approximation Algorithms for Optimal Large-scale Network Monitoring
Michalis Kallitsis, Stilian Stoev, George Michailidis
The growing amount of applications that generate vast amount of data in short time scales render the problem of partial monitoring, coupled with prediction, a rather fundamental on…