<s>
NBName	B-Protocol
(	O
note	O
capitalization	O
)	O
is	O
a	O
computer	B-Application
program	I-Application
that	O
can	O
be	O
used	O
to	O
carry	O
out	O
denial-of-service	O
attacks	O
that	O
can	O
disable	O
NetBIOS	O
services	O
on	O
Windows	B-Application
machines	O
.	O
</s>
<s>
The	O
program	O
decodes	O
and	O
provides	O
the	O
user	O
with	O
all	O
NetBIOS	O
name	O
packets	O
it	O
receives	O
on	O
UDP	B-Protocol
port	B-Protocol
137	O
.	O
</s>
<s>
Its	O
many	O
command	B-Application
line	I-Application
options	I-Application
can	O
effectively	O
disable	O
a	O
NetBIOS	O
network	O
and	O
prevent	O
computers	O
from	O
rejoining	O
it	O
.	O
</s>
<s>
According	O
to	O
Sir	O
Dystic	O
,	O
"	O
NBName	B-Protocol
can	O
disable	O
entire	O
LANs	O
and	O
prevent	O
machines	O
from	O
rejoining	O
them	O
...	O
nodes	O
on	O
a	O
NetBIOS	O
network	O
infected	O
by	O
the	O
tool	O
will	O
think	O
that	O
their	O
names	O
already	O
are	O
being	O
used	O
by	O
other	O
machines	O
.	O
</s>
