We (Georgios Oikonomou [University of Delaware] and Jelena Mirkovic
[USC/ISI]) have developed new methods for differentiating humans from bots
that help defend against flash-crowd DDoS attacks on Web servers. These
attacks flood the server with legitimate-like requests. Neither traffic
content nor bot behavior differ in obvious ways from those of a human user,
which makes flash crowd attacks very challenging to defend from. You can
learn more about our defense approach from our ICC'09 publication
http://www.isi.edu/~mirkovic/publications/icc09.pdf.
To test the accuracy of our method we need humans to browse through the
content on our server, while we attack it. The server is at:
http://tunnel.ddos.t1t2.isi.deterlab.net:10001/en
and it contains a copy of Wikipedia, The Free Encyclopedia, English Version,
November 2006.
During your browsing session a DDoS attack may be launched on the same
server, so you may notice slow replies. Act as you normally would when
deciding if you want to continue interaction or leave. Follow your browsing
preferences at all times, feel free to interact with the server for as long
or as briefly as you want. Also feel free to revisit it at a later time.
Your IP address will be anonymized before being recorded in our logs. No
personal information will be collected about your specific interests or
about your identity. Your co-operation with the research is voluntary at all
times. The results of this study will be available at
http://www.isi.edu/~mirkovic/humanvsbot/ when the study completes. For all
questions please contact us at the e-mails listed below.
Thank you for your help
Jelena Mirkovic (sunshine@isi.edu)
Georgios Oikonomou (goikonom@cis.udel.edu)
Thank you for your time and consideration in participating in the research.
Jelena Mirkovic
Georgios Oikonomou
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