It is a very dangerous memory resident stealth boot virus. It hooks INT 13h and writes itself to the MBR of the hard drive and to the boot sector of floppy disks. The stealth procedure is buggy, and the virus may corrupt the files while reading/writing from/to infected floppy.
While infecting 12th disk the virus manifests itself by a video effect - it changes video palette. Under debugger it halts the computer.
The virus contains the text strings:
Dragon 1
(C) Snake's.
Death
