The Operation BlockBuster Coalition has disclosed the results of its investigation on the activities of the Lazarus Group that is believed to be behind the Sony Pictures hack. The FBI blamed the North Korea, the Bureau released the findings of the investigation that indicated the involvement of the Government of Pyongyang in the Sony Hack. According to Kaspersky the hacking crew has been active since at least 2009 and is still operating undercover. The group is known for spearphishing attacks, which include CVE-2015-6585, which was a zero-day vulnerability at the time of discovery.”]
Source: http://securityaffairs.co/wordpress/44781/cyber-crime/lazarus-group-activities.html