Welcome to the official GitHub organization of Sterra Security Co., Ltd.
We are a security vendor based in Japan, focused on application security, mobile security, security research, and practical tooling for security engineers.
Our GitHub organization is where we publish open-source tools, research prototypes, and utilities built from real-world security assessment work.
Memory search and patch tools for mobile applications.
apk-medit and ipa-medit help streamline dynamic analysis of Android and iOS applications by allowing researchers to search, inspect, and modify memory values during security testing.
These tools are designed for mobile application security research, reverse engineering workflows, and controlled testing environments.
We build tools that support real assessment workflows, not just proof-of-concept demonstrations.
We do not just identify risks. We aim to provide the tools and methods needed to understand, verify, and reproduce them.
We believe security knowledge becomes more useful when it can be reviewed, improved, and shared with the community.
Sterra Security works on security tooling and research across areas such as:
- Vulnerability assessment
- Mobile application security
- Web application security
- Reverse engineering
- Security automation
- Developer-oriented security workflows
We welcome issues, feature requests, discussions, and pull requests.
If you find a bug, have an idea for improvement, or want to contribute to one of our tools, please open an issue or submit a pull request in the relevant repository.
Before contributing, please review each repository’s README, license, and contribution guidelines where available.
Our tools are intended for legitimate security research, authorized testing, education, and defensive assessment.
Do not use these tools against systems, applications, or devices without proper authorization.
- 🌐 Website: sterrasec.com
- 📘 Blog: tech-blog.sterrasec.com
- 🐦 X: @sterrasec
Unless otherwise stated, our open-source projects are released under the MIT License.