時 間：6月 25日 星期二13:30 ~ 15:20
地 點：工程三館345室
演講者： Hao Chen, Associate Professor at the Department of Computer
Science at the University of California, Davis
講 題：AdRob: Examining the Landscape and Impact of Android Application Plagiarism
Malicious activities involving Android applications are rising
rapidly. While pure technical protections may mitigate the attacks to
some extent, we need to understand the underlining economic incentives
to design the most effective defenses.
In this talk, I will describe our project on investigating
application plagiarism on Android markets at a large scale. As a first
step, we characterize plagiarized applications and estimate their
impact on the original application developers. We first crawled around
300,000 free applications from 17 Android markets around the world and
ran a tool to identify similar applications (``clones''). Next, we
captured live HTTP advertising traffic generated by mobile
applications at a tier-1 US cellular carrier for 12 days. To correlate
each Android application with its network traces, we extracted a
unique advertising identifier, the client ID, from both the
applications and their network traces. Based on the data, we examined
properties of the cloned applications and how they affected the
original developers. We estimate a lower bound on the revenue that
cloned applications siphon from the original developers, and the user
base that cloned applications divert from the original applications.
To the best of our knowledge, this is the first large scale study on
the characteristics of cloned applications and their impact on the
original developers.
This is a joint work with Clint Gibler, Ryan Stevens, and Jonathan Crussell.
Short Bio:
Hao Chen is an associate professor at the Department of Computer
Science at the University of California, Davis. He received his Ph.D.
at the Computer Science Division at the University of California,
Berkeley. His interests are in computer security, particularly
smartphone, wireless, and web security. He won the National Science
Foundation CAREER award in 2007, and UC Davis College of Engineering
Faculty Award in 2010.
主持人：黃世昆教授 曾文貴教授