It is not a dangerous nonmemory resident encrypted parasitic virus. It searches for COM files in current directory, then in the C: and C:DOS directories, then writes itself to the end of the file. Depending on the system timer the virus displays one of the messages and returns control to DOS:
IZK=Muminki
;-)) Big smile for Guciu,Ganz,MadMi,Toros etc.$
Out of memory
The virus also contains the text string:
*.com C:*.com C:DOS*.com COMMAND.COM