McAfee’s analysis is one of the most thorough yet published on the March attacks. The attack began on March 4 when thousands of computers started bombarding 14 websites with traffic. The sites included prominent government agencies, South Korean companies and the home page of U.S. Forces Korea. The attacks lasted up to 10 days after which time the malicious software was programmed to self-destruct. The level of effort that went into this one far exceeds any DDoS botnets until now, says McAfee.”]
Source: https://www.csoonline.com/article/2128974/ddos-attack-in-march-likely-n-korean-work–says-mcafee.html