<s>
Natas	B-Application
(	O
Satan	B-Protocol
spelled	O
backwards	O
)	O
is	O
a	O
computer	O
virus	O
written	O
by	O
James	O
Gentile	O
,	O
a	O
then-18-year-old	O
hacker	O
from	O
San	O
Diego	O
,	O
California	O
who	O
went	O
by	O
the	O
alias	O
of	O
"	O
Little	O
Loc	O
"	O
and	O
later	O
"	O
Priest	O
"	O
.	O
</s>
<s>
The	O
virus	O
was	O
made	O
for	O
a	O
Mexican	O
politician	O
who	O
wanted	O
to	O
win	O
the	O
Mexican	O
elections	O
by	O
affecting	O
all	O
the	O
Mexican	O
Federal	O
Electoral	O
Institute	O
(	O
IFE	O
)	O
computers	O
with	O
a	O
floppy	B-Device
disk	I-Device
.	O
</s>
<s>
Natas	B-Application
is	O
a	O
memory-resident	O
stealth	O
virus	O
and	O
is	O
highly	O
polymorphic	O
,	O
that	O
affects	O
master	B-Device
boot	I-Device
records	I-Device
,	O
boot	B-Device
sectors	I-Device
of	O
diskettes	B-Device
,	O
files	O
.COM	O
and	O
also	O
.exe	O
programs	O
.	O
</s>
<s>
The	O
virus	O
first	O
appeared	O
in	O
Mexico	O
City	O
in	O
May	O
1992	O
,	O
spread	O
by	O
a	O
consultant	O
using	O
infected	O
floppy	B-Device
disks	I-Device
.	O
</s>
<s>
Natas	B-Application
also	O
infected	O
computers	O
in	O
Canada	O
,	O
England	O
,	O
Russian	O
Federation	O
,	O
Venezuela	O
and	O
Brazil	O
.	O
</s>
