Diamond Sleet

Diamond Sleet is a North Korea-linked Advanced Persistent Threat (APT) group that has emerged as a significant threat actor in the cybersecurity landscape. This entity, which could be an individual, private company, or government body, is responsible for executing actions with malicious intent. The group's operations are characterized by sophisticated tactics and techniques, demonstrating their capability to launch high-impact cyberattacks. The group recently executed a supply chain attack leveraging CyberLink software, as reported by securityaffairs.com. The specifics of the attack remain undisclosed in the provided information, but supply chain attacks typically involve infiltrating a less secure element in a network to gain access to the primary target. CyberLink, a well-known multimedia software company, was exploited in this instance, indicating Diamond Sleet's ability to compromise reputable software providers. Moreover, the FudModule rootkit has been associated with Diamond Sleet, further substantiating their connection to advanced cyberespionage activities. Rootkits like FudModule provide threat actors with privileged access to a computer system, often remaining undetected for extended periods. This association underscores the severity of the threat posed by Diamond Sleet and its potential for extensive damage within targeted systems.