{"id":13480995,"url":"https://github.com/evilpan/jni_helper","last_synced_at":"2025-03-27T11:31:25.125Z","repository":{"id":38789848,"uuid":"299831769","full_name":"evilpan/jni_helper","owner":"evilpan","description":"Find JNI function signatures in APK and apply to reverse-engineering tools.","archived":false,"fork":false,"pushed_at":"2025-02-24T09:49:31.000Z","size":16542,"stargazers_count":575,"open_issues_count":1,"forks_count":79,"subscribers_count":19,"default_branch":"master","last_synced_at":"2025-02-28T11:59:51.185Z","etag":null,"topics":["apk","binaryninja","ghidra","ida","jni-helper","radare2"],"latest_commit_sha":null,"homepage":"","language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/evilpan.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2020-09-30T06:45:00.000Z","updated_at":"2025-02-28T10:32:07.000Z","dependencies_parsed_at":"2024-02-05T03:28:21.257Z","dependency_job_id":"5175e200-9d10-4fd8-b0ae-d858f9069141","html_url":"https://github.com/evilpan/jni_helper","commit_stats":null,"previous_names":[],"tags_count":6,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/evilpan%2Fjni_helper","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/evilpan%2Fjni_helper/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/evilpan%2Fjni_helper/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/evilpan%2Fjni_helper/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/evilpan","download_url":"https://codeload.github.com/evilpan/jni_helper/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":245836123,"owners_count":20680328,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["apk","binaryninja","ghidra","ida","jni-helper","radare2"],"created_at":"2024-07-31T17:00:47.456Z","updated_at":"2025-03-27T11:31:25.120Z","avatar_url":"https://github.com/evilpan.png","language":"C++","funding_links":[],"categories":["C++","Ghidra Scripts/Plugins/Extension"],"sub_categories":[],"readme":"JNI Helper\n===\n\n![CI](https://github.com/evilpan/jni_helper/workflows/CI/badge.svg)\n\nFind JNI function signatures in APK and apply to reverse tools.\n\n# Basic Usage\n\n1. Use [extract_jni.py](./extract_jni.py) to generate `signature.json`\n2. Load `signature.json` into Ghidra/IDA/BinaryNinja\n\n## extract_jni.py\n\nInstall dependences:\n```\npip3 install -r requirements.txt\n```\n\nUsage:\n```sh\n$ ./extract_jni.py -h\nusage: extract_jni.py [-h] [-j WORKERS] [-o OUTFILE] apk\n\npositional arguments:\n  apk         /path/to/apk\n\noptional arguments:\n  -h, --help  show this help message and exit\n  -j WORKERS  parse apk with multiple workers(processes) (default: 8)\n  -o OUTFILE  save JNI methods as formatted json file (default: stdout)\n```\n\nExample:\n```sh\n./extract_jni.py app-debug.apk -o signature.json\n```\n\n![extract][extract]\n\n## Ghidra Plugin\n\nSee [Ghidra](./ghidra).\n\nBefore      |  After    \n:----------:|:------------:\n![g1][g1]   |  ![g2][g2]\n\n\n## IDA Plugin\n\nSee [IDA](./ida).\n\nBefore      |  After    \n:----------:|:------------:\n![i1][i1]   |  ![i2][i2]\n\n## Binary Ninja Plugin\n\nsee [Binary Ninja](./binary_ninja).\n\nType   |  Image\n:-----:|:------------:\nBefore |  ![b2][b2]\nAfter  |  ![b4][b4]\n\n## Radare2 Plugin\n\n\u003e WIP, see [Radare2](./r2)\n\n# Demo\n\nTested with [demo APK](demo_apk).\n\n```sh\ncd demo_apk\n./gradlew assembleDebug\n```\n\n# TODO\n\n- [x] support both C/C++ JNI functions\n- [x] support overloaded JNI functions\n- [x] remove Jadx dependence, all in Python\n- [x] Add BinaryNinja plugin\n- [ ] support [env-\u003eRegisterNatives][reg] JNI functions\n\n# LINKS\n\n- [android native-libraries][reg]\n- [安卓逆向之自动化JNI静态分析][blog]\n\n[blog]: https://evilpan.com/2020/10/07/jni-helper/\n[reg]: https://developer.android.com/training/articles/perf-jni#native-libraries\n[ayrx]: https://github.com/Ayrx/JNIAnalyzer\n[dist]: https://github.com/evilpan/jni_helper/releases\n\n[i1]: https://i-blog.csdnimg.cn/blog_migrate/fcb5e94e699c7cfd9cdac7d07dcee487.png\n[i2]: https://i-blog.csdnimg.cn/blog_migrate/e7b4338d4d4e1f88ffe4335f75f9292e.png\n[g1]: https://i-blog.csdnimg.cn/blog_migrate/0ba333be526ff368fd0b21fb86cb6253.png\n[g2]: https://i-blog.csdnimg.cn/blog_migrate/f2deaf1b343bdb69650ff9b6612b1466.png\n\n\n\n[b1]: https://i-blog.csdnimg.cn/direct/1a68a50684ef4151a7c6b7442599f295.png\n[b2]: https://i-blog.csdnimg.cn/direct/56fb96fdf46a42b8ad5a79367df0b78f.png\n[b3]: https://i-blog.csdnimg.cn/direct/6de69105b83c4a9197cbad513ed4fe94.png\n[b4]: https://i-blog.csdnimg.cn/direct/58a77ec9f9a54e86871b5325ab5f1333.png\n\n[extract]: https://i-blog.csdnimg.cn/direct/df84d62729034202ad172be7db387e6a.png\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fevilpan%2Fjni_helper","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fevilpan%2Fjni_helper","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fevilpan%2Fjni_helper/lists"}