An unknown malware had begun affecting IT systems in Ukraine’s critical infrastructure sectors that included aviation, banking, and electricity. The attack occurred, probably not by chance, only hours after the car bombing murder of Col. Maxim Shapoval of the Ukraine Chief Directorate of Intelligence. PETYA, PETRYA, or PETwrap, reportedly utilized the the NSAs leaked EternalBlue, the same Windows SMBv1 vulnerability as WannaCry. The SMB vulnerability in question had been patched by Microsoft prior to the May outbreak.”]
Source: https://www.csoonline.com/article/3203970/petya-darwinism-applied-to-cyberspace.html