Dr.-Ing. Johannes Dahse

  • Member - Horst Görtz In­sti­tu­te for IT-Se­cu­ri­ty Horst Görtz Institute for IT-Security
  • Former Assistant - Chair Systems Security
Dahse, Johannes


Ruhr-University Bochum
Chair for Systems Security
Universitätsstrasse 150
44780 Bochum / Germany

johannes.dahse@rub.de PGP key


Johannes Dahse graduated from the Ruhr-University of Bochum in the subject of IT-Security in December 2012 and is a doctoral student at the Chair for Systems Security since March 2013. In his final thesis he developed a static code analyzer for PHP application vulnerabilities. He is a published author and worked as security consultant for SektionEins, SEC Consult, Qualys, and Cure53.


  • Web Application Security
  • Static Code Analysis


No Honor Among Thieves: A Large-Scale Analysis of Malicious Web Shells

Oleksii Starov, Johannes Dahse, Syed Sharique Ahmad, Thorsten Holz, Nick Nikiforakis - 25th International World Wide Web Conference (WWW), Montreal, April 2016

Security Analysis of PHP Bytecode Protection Mechanisms

Dario Weißer, Johannes Dahse, Thorsten Holz - Research in Attacks, Intrusions and Defenses (RAID) Symposium, Kyoto, Japan, November 2015

Experience Report: An Empirical Study of PHP Security Mechanism Usage

Johannes Dahse, Thorsten Holz - International Symposium on Software Testing and Analysis (ISSTA)

Code Reuse Attacks in PHP: Automated POP Chain Generation

Johannes Dahse, Nikolai Krein, Thorsten Holz - 21st ACM Conference on Computer and Communications Security (CCS), Scottsdale, Arizona, USA, November 2014 - ** Best Student Paper Award **

Static Detection of Second-Order Vulnerabilities in Web Applications

Johannes Dahse, Thorsten Holz - 23rd USENIX Security Symposium, San Diego, CA, USA, August 2014 - ** Internet Defense Prize by Facebook **

Simulation of Built-in PHP features for Precise Static Code Analysis

Johannes Dahse, Thorsten Holz - Annual Network & Distributed System Security Symposium (NDSS), San Diego, February 2014

Sichere Webanwendungen

Mario Heiderich, Christian Matthies, Johannes Dahse, fukami - GALILEO PRESS, Auflage 1, ISBN-10: 3836211947, ISBN-13: 978-3836211949