<s>
Eliza	B-Application
is	O
a	O
computer	O
virus	O
discovered	O
in	O
December	O
1991	O
.	O
</s>
<s>
It	O
infects	O
COM	O
files	O
including	O
COMMAND.COM	B-Operating_System
.	O
</s>
<s>
It	O
is	O
also	O
found	O
in	O
later	O
versions	O
of	O
Windows	B-Application
.	O
</s>
<s>
One	O
of	O
the	O
forms	O
of	O
Eliza	B-Application
attacks	O
the	O
MS-DOS	O
operating	B-General_Concept
system	I-General_Concept
by	O
reproducing	O
itself	O
into	O
COM	O
and	O
.EXE	O
files	O
.	O
</s>
<s>
It	O
is	O
unknown	O
whether	O
the	O
same	O
person	O
developed	O
the	O
Windows	B-Application
strain	O
,	O
which	O
is	O
much	O
more	O
damaging	O
and	O
is	O
considered	O
a	O
legitimate	O
threat	O
.	O
</s>
<s>
The	O
virus	O
can	O
be	O
removed	O
with	O
an	O
antivirus	B-Application
program	I-Application
,	O
or	O
by	O
rebooting	O
in	O
Safe	O
Mode	O
and	O
manually	O
removing	O
the	O
infected	O
files	O
.	O
</s>
