A set of links about notPetya
Additional links:
https://www.theregister.co.uk/2017/06/28/petya_notpetya_ransomware/
https://www.bleepingcomputer.com/news/security/security-firms-find-thin-lines-connecting-notpetya-to-ukraine-power-grid-attacks/
Click on A set of links about notPetya to open the resource.