Infermon is a malevolent Digimon from the series, Digimon Adventure. Infermon is the evolved form of Keramon, and a minor player in the Non Disney Villains Tournament.
Non Disney Villains Tournament
For earlier information, read the article here.
Mok Swagger uses infermon to infect the computer systems of the Technodrome. Mok is then able to use Infermon to hack into Metal Sonic. Infermon's hacking also enables Discord to enter the lair of Doctor Robotnik and Snively.