HIDDEN COBRA is what the US government calls the malicious actions of North Korea. In the MARs report, the FBI and CISA warn against malware. US agencies have provided organizations with detailed information on the analysis of malicious software, and reports have been issued to help detect and limit the malicious activities of the North Korean government.

https://www.techradar.com/news/fbi-warns-over-fresh-malware-from-north-korea