If you’ve ever played the game TH12 – Undefined Fantastic Object, it might be worth brushing up again. There’s a new kind of ransomware called Rensenware that doesn’t require money to recover your file. Instead, the victim has to play an old video game and rack up certain points.
Ransomware that wants you to play a game
Developed by a Korea-based undergraduate student, who goes by the handle Tvple Eraser, Rensenware is a quibble on the name Touhou Seirensen, a Japanese shooting game released in 2009. Once you’re attacked, you’ll see an anime sailor girl pop up on your dashboard saying, “Minamitsu ‘The Captain’ Murasa encrypted your precious data like documents, musics, pictures, and some kinda project files.”
And here comes the most interesting as well the most onerous part. Unlike other ransomware, where you have to pay some ransom to be free of the program, you have to play TH12 – Undefined Fantastic Object and score over 0.2 billion in the Lunatic level – sounds pretty rigorous.
Even the creator couldn’t beat the score
Well, you may wonder what made the creator do such thing. “I was bored,” he told Kotaku over an email. After releasing it on GitHub just for fun, he went asleep. When he woke up, he learned through Twitter that his malware has spread beyond his expectation, infecting his own computer too. And the irony is, he himself couldn’t score 0.2 billion.
However, he understood his mistake and apologized to all who were the victims of his joke. He said he created it as a joke for the people who like Touhou Project Series. Also, he immediately released software to GitHub that neutralized Rensenware after malware devotees traced it to him.