When the virus is run, it infects every DOS executable located in same directory, except those which are smaller than the virus itself.
Files infected by this virus will no longer function and crash the system in usual.
The virus does not check whether a program has been infected and would reinfect it on next runtime, only if the payload is displayed.
On first run the virus ignores COMMAND.COM but would infect it on next run.
The virus activates after infecting the files, followed by hanging the system.
It displays the message in ASCII art:
SORRY ABOUT THE WAREZ DUDE
The binaries of the infected files would also contain the payload but most of them would not be displayed correctly, but garbage characters instead.
The virus contains the internal text string:
*.com - W A R E Z D 0 0 D -