It is well known that big events attract the attention of hackers. The biggest event right now is the 2018 Winter Olympics in Pyeongchang, South Korea and it looks like the hackers have arrived. Shortly before the opening ceremonies on Friday, televisions at the main press centre, wifi at the Olympic Stadium and the official website were taken down. All systems were restored by 8AM on the following Saturday, and although individuals were unable to print event tickets during the outage, the organizing committee described the event as affecting only “noncritical systems.” Given the high profile of the games, the rumor mill immediately began spreading whispers that the outage was the result of a cyberattack.
After restoring services and investigating the cause, Sunday evening Pyeongchang 2018 spokesperson Sung Baik-you issued an official statement confirming that the outage resulted from a cyber attack.
“There was a cyber-attack and the server was updated yesterday during the day and we have the cause of the problem”, Sung Baik-you said.
Leading up to the Olympic Games there was a lot of speculation whether North Korea would attempt to disrupt the games. Along with China and Russia, North Korean cyberwarfare teams are often suspected in large-scale attack such as these. In this case, the International Olympics Committee (IOC) is refusing to participate in any speculation as to the source of the attacks.
“We wouldn’t start giving you the details of an investigation before it has come to an end, particularly because it involves security which at these games is incredibly important. I am sure you appreciate we need to maintain the security of our systems,” said Mark Adams, head of communications for the IOC.
While the IOC and Pyeongchang spokespeople are being cautious about releasing details to focus on ensuring security and safety of the games, Cisco Talos has been forthcoming with technical details of the attack. While they haven’t pointed fingers at specific attackers, but in a Talos blog post on February 12, they have stated, “[samples identified] are not from adversaries looking for information from the games but instead they are aimed to disrupt the games.”
According to their research, there are many similarities between the Pyeongchang attack, which they are dubbing “Olympic Destroyer”, and earlier attacks such as BadRabbit and NotPetya. All of these attacks are focused on destruction and disruption of equipment not exfiltration of data or other, more subtle attacks. Using legitimate tools such as PsExec and WMI the attackers are specifically targeting the pyeongchang2018.com domain attempting to steal browser and system credentials to move laterally in the network and then wiping the victim computer to make it unusable.
While the source of the attacks is uncertain, the Cisco Talos blog post is clear in identifying motivation, “Disruption is the clear objective in this type of attack and it leaves us confident in thinking that the actors behind this were after embarrassment of the Olympic committee during the opening ceremony.”
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