This antivirus has the theme of Hokuto no Ken.
A video posted by Ivan Ching on YouTube on September 6, 2017 with a preview of a new episode of the anime Fist of the North Star, which is known as Nani, was responsible for generating the meme.
Some even repeated Kenshiro's lines omae wa mou shindeiru like Luck Stars, Death Note, Dragon Ball and many others.