Explore the history, techniques, and obfuscation methods of webshells in this comprehensive conference talk from OISF 2013. Delve into Adrian Crenshaw's expert analysis of these powerful hacking tools, examining their evolution, implementation strategies, and methods for evading detection. Gain valuable insights into cybersecurity threats and defense mechanisms as you learn about the intricate world of webshells and their impact on web application security. Access additional resources and downloads related to the presentation through the provided links to enhance your understanding of this critical topic in information security.