Understanding and Identifying Cross-platform UI Framework based Potentially Unwanted Apps

IEEE CONFERENCE ON GLOBAL COMMUNICATIONS, GLOBECOM(2023)

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摘要
Cross-platform UI frameworks may facilitate a new category of Potentially Unwanted Apps, dubbed XPUAs, which uses framework-specific language to implement its UI in the form of cross-platform payload. XPUAs are able to bypass the existing app vetting procedures leveraging their unique technical characteristics and make revenue on addicitive contents that are strictly prohibited by either local laws or app market regulations. In this paper, we first examined the profit chain of XPUAs and then proposed PUAXRAY, a novel detection system that utilized machine learning to identify XPUAs. PUAXRAY used a binary classifier that was trained on features extracted from cross-platform payloads, including semantics information and thirdparty library usage information. We evaluated PUAXRAY on a dataset that was created for the first time in the community with benign apps from reputable app markets and XPUAs from an industry collaborator. PUAXRAY achieved 95.4% F1-score in the XPUAs identification task, and proved capable to be extended to other cross-platform UI frameworks.
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关键词
Malware Detection,Potentially Unwanted App,Cross-platform UI Framework,Profit Chain
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