%%File: VIRS0759.TXT
%%Name/Aliases: Toothless, W13, W13-A, W13-B
%%Platform: PC/MS-DOS
%%Type: Program., 
%%Disk Location: COM application.
%%Features: Memory resident; TSR.
%%Damage: Corrupts a program or overlay files.
%%Size: 534, 507
%%See Also: 
%%Notes: Infects .COM files. Infected programs are first padded so their 
length becomes a multiple of 512 bytes, and then the 637 bytes of virus 
code is added to the end.  It then intercepts any disk writes and 
changes them into disk reads.