Abstract
The popularity of Android brings many functionalities to its users but it also brings many threats. Repacked Android application is one such threat which is the root of many other threats such as malware, phishing, adware, and economical loss. Earlier many techniques have been proposed for the detection of repacked application but they have their limitations and bottlenecks. In this work, we proposed an image similarity based repacked application detection technique. The proposed work utilized the main idea behind the repacking of application that is “the attacker wants to create fake application looking visually similar to the original". We convert each APK file into a grayscale image and then use perceptual hashing for creating a hash of each image. The string distance algorithms like Hamming distance was used to calculate the distance and searching for the repacked application. The proposed work also used distance calculation on binary features extracted from the app. The proposed work is very powerful in terms of detection accuracy and scanning speed and we achieved 96% accuracy.
Highlights
The popularity of Android brings many functionalities to its users but it brings many threats
The proposed work is very effective in terms of detection accuracy and scanning speed and we achieved 96% accuracy
We have proposed a technique to detect repacked Android applications by the help of the ImageHash technique termed as perceptual hashing
Summary
The realization of the need for ubiquitous computing has boosted the development of the mobile application which can be noticed by the presence on millions of apps and their download counts in various official and alternative major Android app stores. The sale of different kind of services and advertisement is two main benign methods for revenue whereas attackers exploit these apps for various other monetary gains such as Premium SMS, malware-as-a-service, Pay-per-install, etc. Repacked Android application is a major challenge to the Android ecosystem, according to Zhou and Jiang (2012), 86% of the detected malware is repackaged apps. The App repackaging is one of most broadly utilized assault method of Android malware (Jiang & Zhou, 2013). The proposed work is very effective in terms of detection accuracy and scanning speed and we achieved 96% accuracy
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