<s>
Sigma	B-Application
is	O
a	O
signature	O
format	O
based	O
on	O
pattern	B-Language
matching	I-Language
for	O
system	O
logging	B-Application
,	O
to	O
detect	O
malicious	O
behavior	O
in	O
computer	O
systems	O
.	O
</s>
