From UI to Code: Mobile Ads Detection via LLM-Unified Static-Dynamic Analysis

• URL: http://arxiv.org/abs/2604.03561v1
• Date: Sat, 04 Apr 2026 03:04:03 GMT
• Title: From UI to Code: Mobile Ads Detection via LLM-Unified Static-Dynamic Analysis
• Abstract summary: ADWISE is a framework that formulates mobile ads detection as LLM-guided, ad-oriented UI exploration.<n>ADWISE first performs static program analysis to identify UI widgets used to place ads, which we call ad widgets.<n>ADWISE outperforms state-of-the-art baselines by 25.60% in ad widget detection.
• Score: 21.13861921564872
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Mobile advertisements (ads) are essential to the app economy, yet detecting them is challenging because ad content is dynamically fetched from remote servers and rendered through diverse user interfaces (UIs), making ads difficult to locate and trigger at runtime. To address this challenge, we present ADWISE, a novel framework that formulates mobile ads detection as LLM-guided, ad-oriented UI exploration. ADWISE first performs static program analysis to identify UI widgets used to place ads, which we call ad widgets. It then uses a grounded LLM reasoning loop to navigate toward and trigger these widgets under three complementary domain guidance signals: (1) WTG-based guidance, which provides global transition priors from a statically constructed window transition graph (WTG); (2) semantic guidance, which reasons over app functionality to prioritize user-likely interaction paths; and (3) structural guidance, which applies retrieval-augmented generation to match the current UI against recurring ad-heavy layouts from a knowledge base. By combining static program analysis with LLM-based reasoning over UI structure, app semantics, and retrieved analogies, ADWISE enables more effective ads detection in complex mobile UIs. Experiments on 100 benchmark apps show that ADWISE outperforms state-of-the-art baselines by 25.60% in ad widget detection. In addition, ADWISE uncovers 34.34% more ad regulation violations across six categories, directly benefiting downstream ad regulation.

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