%%File: VIRS0507.TXT
%%Name/Aliases: Leapfrog, 516
%%Platform: PC/MS-DOS
%%Type: Program., 
%%Disk Location: COM application., EXE application.
%%Features: Direct acting.
%%Damage: Corrupts a program or overlay files.
%%Size: 
%%See Also: 
%%Notes: Does not change the file entry point. (other viruses that are 
similar are Voronezh-1600 and Brainy)

Leapfrog modifies the instruction the initial JMP points to (for COM 
files)
v6-084: will not be noticed by the integrity checking of MSAV (DOS 6.0 
antivirus)