It's a harmless memory resident multipartite virus. It hooks INT 13h and infects MBR of hard drives and boot sectors of floppies. On accessing to sector which contains EXE-header ('MZ' at the sector beginning), the virus copies itself into the zero-bytes area (if it presents) and corrects EXE-header fields. So the virus infects EXE-files. It also contains the internal text strings: "MzBoot" and "(c) Ç¡ñ___¬á".
