rensenWare(蓮船ウェアー, 련선웨어) is a ransomware. it does not demand to victims any money, but makes them play Touhou Project game and unlocks files when player reaches 200 million points of score.

Following extensions are target of rensenWare.

.jpg, .txt, .png, .pdf, .hwp, .psd, .cs, .c, .cpp, .vb, .bas, .frm, .mp3, .wav, .flac, .gif, .doc, .xls, .xlsx
.docx, .ppt, .pptx, .js, .avi, .mp4, .mkv, .zip, .rar, .alz, .egg, .7z, .raw

This repository does not contain entire of source code, but core part is archived to say what I wanted to do with this.

The initial build of rensenWare (also initial release of source code) has no exception handlers, so it can be terminated unexpectedly and results permanent data loss.

SO PLEASE, DO NOT EXECUTE IT IF YOU ARE NOT SURE THAT YOUR DATA IS SAFE FROM RENSENWARE UNDER ANY CIRCUMSTANCES!

Also, DO NOT request me the entire(or encryption part) source code of rensenWare. I decided not to provide it to anyone.

Repository : https://github.com/0x00000FF/rensenware_force

Release : https://github.com/0x00000FF/rensenware_force/releases

New version of Forcer (released in Dec. 18 KST) runs as decoy of rensenWare, so you don't have to buy or get Touhou game.

Article of Bleeping Computer : https://www.bleepingcomputer.com/news/security/rensenware-will-only-decrypt-files-if-victim-scores-2-billion-in-th12-game/

or open Issues or PR.

I've listed a NFT of an encrypted archive of the initial build of rensenWare. Feel free to look around