Go to command prompt

Type
snort -vde -c /etc/snort/snort.conf
It will detect anything malicious happens.

Set rules on snort rules

I research online and find out the name of malware that attacked Sony Entertainment.
It is called Destover//Sony. http://securelist.com/blog/research/67985/destover/
Apparently, ithe malware have Korean package. The Malware invades computer and install package and write data and MBR.
The malware actually called Trojan Destover.