Ikinci, AliHolz, ThorstenFreiling, FelixAlkassar, AmmarSiekmann, Jörg2019-04-032019-04-032008978-3-88579-222-2https://dl.gi.de/handle/20.500.12116/21494Client-side attacks are on the rise: malicious websites that exploit vulnerabilities in the visitor’s browser are posing a serious threat to client security, compromising innocent users who visit these sites without having a patched web browser. Currently, there is neither a freely available comprehensive database of threats on the Web nor sufficient freely available tools to build such a database. In this work, we introduce the Monkey-Spider project [Iki]. Utilizing it as a client honeypot, we portray the challenge in such an approach and evaluate our system as a high-speed, Internet-scale analysis tool to build a database of threats found in the wild. Furthermore, we evaluate the system by analyzing different crawls performed during a period of three months and present the lessons learned.enText/Conference Paper1617-5468