Games Reverse Engineering and Data Mining Projects

Date A Live: Spirit Pledge Game Analysis

• Assets Decryption Tool:
  • Reverse Engineer mobile game Date A Live: Spirit Pledge using Static analysis tool from NSA ghidra and dynamic analysis tool frida.
  • Re-implement decryption functions using Python, implement methods to convert PowerVR, Ericsson Texture Compression format to digital images format (JPEG/PNG)
• Assets Mining CD/CI: - Data-mined source logics to find insecure API/server that allows easy download/extraction of new game contents. - Datamining repository above developed decryption tool. Using cronjob and Github Action to automate fetch, decrypt and datamine new contents.
• Usable mined data examples:
  • Extract Live2D assets compatible with Live2DViewerEX: Link
  • Dating Route and Favorites: Link

Other games reverse engineering/analysis

• Azur Lane (Autopatcher): Reverse engineer Azur Lane game client and edit (patch) the game logic automatically.
• Arknights Assets Decryption: Decrypt Arknights game assets by extracting AES encryption key via dynamic analysis (Frida).