<s>
Ghostball	B-Application
was	O
the	O
first	O
multipartite	O
virus	O
discovered	O
.	O
</s>
<s>
The	O
virus	O
is	O
capable	O
of	O
infecting	O
both	O
executable	B-Application
.COM-files	O
and	O
boot	B-Device
sectors	I-Device
.	O
</s>
<s>
The	O
code	O
that	O
is	O
capable	O
of	O
infecting	O
COM	O
files	O
is	O
stated	O
to	O
be	O
inspired	O
from	O
a	O
modified	O
version	O
of	O
the	O
The	O
section	O
of	O
the	O
virus	O
that	O
is	O
capable	O
of	O
infecting	O
boot	B-Device
sectors	I-Device
is	O
extracted	O
from	O
the	O
Ping-Pong	B-Application
virus	I-Application
.	O
</s>
