The archive was tiny (only a few kilobytes), but when extracted, it expanded into hundreds of gigabytes of data.
In the mid-2000s, rumors began circulating on imageboards like and Something Awful about a file named 51980.rar . Unlike most viruses, which were designed to steal data, this file was whispered to have a "psychological" effect on those who opened it. The Legend 51980.rar
It uses recursive layers of compression to hide massive amounts of data in a tiny package. The archive was tiny (only a few kilobytes),