This is a dangerous non-memory resident encrypted parasitic virus. It searches for COM files of the current and root directories, and writes itself to the end of the file.
Sometimes it decrypts and displays:
Pray for death - RABID '91
On the 13th of every month, it displays:
Rage - RABID Int'nl Development Corp.
By Data Disruptor - Thanks to Zodiac
and erases the disk sectors. It also contains the texts: "Patricia Boon", "*.COM".
