Research

I've worked as a research assistant at the iNET research group at HAW Hamburg. My research focuses on Internet measurements & security, often using network telescopes as a vantage point. So far my programming languages of choice have been C++ and Python.

During my PhD, I developed the reactive network telescope Spoki. It interacts with scans in realtime on the transport layer to learn more about the behavior of scanners and to collect their payloads. You can find the code on GitHub and more information on the publication website.

I'll (hopefully) finish up my PhD soon.🤞

Some of my publications

The Age of DDoScovery: An Empirical Comparison of Industry and Academic DDoS Assessments
Raphael Hiesgen, Marcin Nawrocki, Marinho Barcellos, Daniel Kopp, Oliver Hohlfeld, Echo Chan, Roland Dobbins, Christian Doerr, Christian Rossow, Daniel R. Thomas, Mattijs Jonker, Ricky Mok, Xiapu Luo, John Kristoff, Thomas C. Schmidt, Matthias Wählisch, KC Claffy
IMC'24
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The Log4j Incident: A Comprehensive Measurement Study of a Critical Vulnerability
Raphael Hiesgen, Marcin Nawrocki, Thomas C. Schmidt, Matthias Wählisch
IEEE TNSM
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Do CAA, CT, and DANE Interlink in Certificate Deployments? A Web PKI Measurement Study
Pouyan Fotouhi Tehrani, Raphael Hiesgen, Teresa Lübeck, Thomas C. Schmidt, Matthias Wählisch
TMA'24
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SoK: A Data-driven View on Methods to Detect Reflective Amplification DDoS Attacks Using Honeypots
Marcin Nawrocki, John Kristoff, Raphael Hiesgen, Chris Kanich, Thomas C. Schmidt, Matthias Wählisch
IEEE Euro S&P'23
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On the Interplay between TLS Certificates and QUIC Performance
Marcin Nawrocki, Pouyan Fotouhi Tehrani, Raphael Hiesgen, Jonas Mücke, Thomas C. Schmidt, Matthias Wählisch
CoNEXT '22
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Spoki: Unveiling a New Wave of Scanners through a Reactive Network Telescope
Raphael Hiesgen, Marcin Nawrocki, Alistair King, Alberto Dainotti, Thomas C. Schmidt, Matthias Wählisch
USENIX Security '22
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The Race to the Vulnerable: Measuring the Log4j Shell Incident
Raphael Hiesgen, Marcin Nawrocki, Thomas C. Schmidt, Matthias Wählisch
TMA '22
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QUICsand: Quantifying QUIC Reconnaissance Scans and DoS Flooding Events
Marcin Nawrocki, Raphael Hiesgen, Thomas C. Schmidt, Matthias Wählisch
ACM IMC '21
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Revisiting Actor Programming in C++
Dominik Charousset, Raphael Hiesgen, Thomas C. Schmidt
CLSS 2016
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