This is not actually illegal, you won't get shot by the fbi if you download this file. The items and blocks in this world are obtained by glitches, commands or even editing savefiles. It includes stuff like the Portal block, Piston arm collision, no-clip diamond blocks etc. It's very cool :)
btw this is not a virus, it's a .mcworld file, it can't harm your pc.
play in vanilla Minecraft Bedrock without education edition
warning: some stuff can break on newer updates (this world is on 26.1)
warning 2: some items in chests can randomly dissapear