Malcolm McBride studied a liquid he found in a test tube at Empire State University and determined that it is a virus that "was created by recombinant DNA technology". It also grew rapidly when exposed to air, slipped off the microscope slide, and attacked Malcolm's face. This exposure turned Malcolm into Carrion, not only giving him the knowledge of Spider-Man's identity but also garbing him in Carrion's rags and shoulder bag containing the deadly red dust.
Credit: marvel.fandom.com
Key Issues & Appearances
1
Significant comic book appearances featuring Carrion
