<s>
Linux	B-Application
Malware	I-Application
Detect	I-Application
,	O
abbreviated	O
as	O
LMD	O
or	O
maldet	B-Application
,	O
is	O
a	O
software	O
package	O
that	O
looks	O
for	O
malware	B-Application
on	I-Application
Linux	I-Application
systems	I-Application
and	O
reports	O
on	O
it	O
.	O
</s>
<s>
Linux	B-Application
is	O
more	O
secure	O
than	O
Microsoft	O
Windows	O
and	O
there	O
are	O
considerably	O
fewer	O
computer	O
viruses	O
and	O
other	O
malware	O
written	O
for	O
it	O
.	O
</s>
<s>
Whereas	O
there	O
are	O
many	O
malware	O
detection	O
software	O
packages	O
like	O
virus	O
scanners	O
for	O
Windows	O
,	O
there	O
are	O
relatively	O
few	O
for	O
Linux	B-Application
.	O
</s>
<s>
To	O
protect	O
Linux	B-Application
systems	O
against	O
vulnerabilities	O
,	O
various	O
software	O
packages	O
are	O
available	O
,	O
such	O
as	O
rootkit	O
detectors	O
such	O
as	O
Rootkit	O
Hunter	O
and	O
chkrootkit	O
,	O
and	O
auditing	O
systems	O
like	O
lynis	B-Device
.	O
</s>
<s>
Malware	O
detection	O
software	O
such	O
as	O
LMD	O
and	O
ClamAV	B-Application
improve	O
the	O
security	O
of	O
systems	O
by	O
scanning	O
them	O
based	O
on	O
the	O
signatures	O
of	O
thousands	O
of	O
instances	O
of	O
known	O
malware	O
.	O
</s>
<s>
For	O
malware	O
signatures	O
,	O
LMD	O
uses	O
various	O
sources	O
such	O
as	O
the	O
signatures	O
database	O
of	O
ClamAV	B-Application
and	O
the	O
Malware	O
Hash	O
Registry	O
of	O
Team	O
Cymru	O
.	O
</s>
<s>
If	O
a	O
ClamAV	B-Application
scanner	O
engine	O
is	O
already	O
available	O
on	O
a	O
system	O
,	O
LMD	O
will	O
use	O
this	O
for	O
its	O
scanner	O
engine	O
.	O
</s>
<s>
The	O
executable	O
command	O
of	O
LMD	O
is	O
maldet	B-Application
.	O
</s>
<s>
Typical	O
command	B-Application
invocations	I-Application
are	O
maldet	B-Application
-d	O
,	O
to	O
check	O
for	O
later	O
versions	O
;	O
maldet	B-Application
-u	O
,	O
to	O
check	O
for	O
malware	O
signature	O
updates	O
;	O
and	O
maldet	B-Application
-a	O
,	O
to	O
scan	O
the	O
file	O
system	O
of	O
the	O
server	O
on	O
which	O
LMD	O
resides	O
.	O
</s>
<s>
Besides	O
periodic	O
scans	O
,	O
real-time	O
monitoring	O
is	O
also	O
supported	O
with	O
the	O
--monitor	O
command-line	B-Application
argument	O
.	O
</s>
<s>
Linux	B-Application
Malware	I-Application
Detect	I-Application
is	O
one	O
of	O
the	O
objectives	O
for	O
the	O
LPI	O
303	O
certification	O
.	O
</s>
