Ralf Burger
Biography:
Ralf Burger is the author of the book "Computer Viruses: A High-Tech Disease". He presented the Virdem (first file virus for the DOS operating system which he created) model of programs at a meeting of the underground Chaos Computer Club in Germany in 1986. The Virdem model represented the first programs that could replicate themselves via addition of their code to executable DOS files in COM format. Burger is quoted as saying about viruses that "used properly may bring about a new generation of self-modifying computer operating systems".