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PUMA: Programmable UI-Automation for Large Scale Dynamic Analysis of Mobile Apps

PUMA: Programmable UI-Automation for Large Scale Dynamic Analysis of Mobile Apps. MobiSys ’ 14 Presented by Haocheng Huang huanghc@emnets.org. Contribution. D esign and implement PUMA, a programmable UI automation framework for conducting dynamic analyses of mobile apps at scale.

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PUMA: Programmable UI-Automation for Large Scale Dynamic Analysis of Mobile Apps

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  1. PUMA: Programmable UI-Automation for Large ScaleDynamic Analysis of Mobile Apps MobiSys’ 14 Presented by Haocheng Huang huanghc@emnets.org

  2. Contribution • Design and implement PUMA, a programmable UI automation framework for conducting dynamic analyses of mobile apps at scale. • Evaluate PUMA by programming seven qualitatively different analyses that study performance, security, and correctness properties of mobile apps.

  3. Motivation & Related Work • static analysis can fail to capture runtime contexts • app binaries may be obfuscated to thwart static analysis

  4. Architecture

  5. PUMAScript Language • Event-based programming language • Defined two events • monkey-specific events & app-specific events • App-specific events • SIF: A Selective Instrumentation Framework for Mobile Applications

  6. PUMAScriptLanguageMonkey-specific Events

  7. Example Monkey-specific Events App-specific Events

  8. Evaluation PUMA’s programmable monkey explored 15 apps per hour per phone

  9. EvaluationAnalysis 1: Accessibility Violation Detection • maximum round-trip paths greater than 10 • a state contains more than 100 words • contains a button smaller than 80mm2 • two buttons whose centers are less than 15mm apart • contains a scrollable UI widget

  10. EvaluationAnalysis 2: Content-based App Search

  11. Questions ?

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