GUI-Squatting Attack: Automated Generation of Android Phishing Apps
IEEE TRANSACTIONS ON DEPENDABLE AND SECURE COMPUTING(2021)
Abstract
Mobile phishing attacks, such as mimic mobile browser pages, masquerade as legitimate applications by leveraging repackaging or clone techniques, have caused varied yet significant security concerns. Consequently, detection techniques have been receiving increasing attention. However, many such detection methods are not well tested and may therefore still be vulnerable to new types of phishing attacks. In this article, we propose a new attacking technique, named GUI-Squatting attack, which can generate phishing apps (phapps) automatically and effectively on the Android platform. Our method adopts image processing and deep learning algorithms, to enable powerful and large-scale attacks. We observe that a successful phishing attack requires two conditions, page confusion and logic deception during attacks synthesis. We directly optimize these two conditions to create a practical attack. Our experimental results reveal that existing phishing defenses are less effective against such emergent attacks and may, therefore, stimulate more efficient detection techniques. To further demonstrate that our generated phapps can not only bypass existing detection techniques, but also deceive real users, we conduct a human study and successfully steal users' login information. The human study also shows that different response messages (e.g., "Crash" and "Server failed") after pressing the login button mislead users to regard our phapps as functionality problems instead of security threats. Extensive experiments reveal that such newly proposed attacks still remain mostly undetected, and are worth further exploration.
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Key words
Phishing,Graphical user interfaces,Cloning,Task analysis,Microsoft Windows,Malware,Android phishing apps,android GUI attacks,android apps
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