The FBI and the Department of Homeland Security just released results of their joint analysis on North Korean malware variants dubbed "HARDRAIN" and "BADCALL."
"The intent of sharing this information is to enable network defenders to identify and reduce exposure to North Korean government cyber activity."
With that mission in mind, here are the new malware analysis reports, which include a link to the actual code being used by North Korea right now.
HARDRAIN analysis: https://www.us-cert.gov/sites/default/files/publications/MAR-10135536-F.pdf
BADCALL analysis: https://www.us-cert.gov/sites/default/files/publications/MAR-10135536-G.PDF
Did North Korea hack the Olympics during the opening ceremonies? It's a mystery for now, however, someone did.