APEX: Automatic Event Sequence Generation for Android Applications
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866908515669377024 |
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| author | Chen, Wenhao Chang, Morris Srisa-an, Witawas Guan, Yong |
| author_facet | Chen, Wenhao Chang, Morris Srisa-an, Witawas Guan, Yong |
| contents | Due to the event driven nature and the versatility of GUI designs in Android programs, it is challenging to generate event sequences with adequate code coverage within a reasonable time. A common approach to handle this issue is to rely on GUI models to generate event sequences. These sequences can be effective in covering GUI states, but inconsistent in exposing program behaviors that require specific inputs. A major obstacle to generate such specific inputs is the lack of a systematic GUI exploration process to accommodate the analysis requirements. In this paper, we introduce Android Path Explorer (APEX), a systematic input generation framework using concolic execution. APEX addresses the limitations of model-based sequence generation by using concolic execution to discover the data dependencies of GUI state transitions. Moreover, concolic execution is also used to prioritize events during the exploration of GUI, which leads to a more robust model and accurate input generation. The key novelty of APEX is that concolic execution is not only used to construct event sequences, but also used to traverse the GUI more systematically. As such, our experimental results show that APEX can be used to generate a set of event sequences that achieve high code coverage, as well as event sequences that reach specific targets. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_02412 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | APEX: Automatic Event Sequence Generation for Android Applications Chen, Wenhao Chang, Morris Srisa-an, Witawas Guan, Yong Cryptography and Security Due to the event driven nature and the versatility of GUI designs in Android programs, it is challenging to generate event sequences with adequate code coverage within a reasonable time. A common approach to handle this issue is to rely on GUI models to generate event sequences. These sequences can be effective in covering GUI states, but inconsistent in exposing program behaviors that require specific inputs. A major obstacle to generate such specific inputs is the lack of a systematic GUI exploration process to accommodate the analysis requirements. In this paper, we introduce Android Path Explorer (APEX), a systematic input generation framework using concolic execution. APEX addresses the limitations of model-based sequence generation by using concolic execution to discover the data dependencies of GUI state transitions. Moreover, concolic execution is also used to prioritize events during the exploration of GUI, which leads to a more robust model and accurate input generation. The key novelty of APEX is that concolic execution is not only used to construct event sequences, but also used to traverse the GUI more systematically. As such, our experimental results show that APEX can be used to generate a set of event sequences that achieve high code coverage, as well as event sequences that reach specific targets. |
| title | APEX: Automatic Event Sequence Generation for Android Applications |
| topic | Cryptography and Security |
| url | https://arxiv.org/abs/2509.02412 |