Yesterday, a new ransomware wreaked havoc across the world. This new malware variant, which combines the functionality of ransomware with the behaviors of a worm, is being called Petya, Petrwrap, and even NotPetya, since researchers are still investigating as to whether its ability to modify the Master Boot Record of a targeted machine is based on the Petya family of malware. Fortinet has designated this new hybrid form of malware as a ransomworm, and this outbreak was reported to use the same worm mechanism to spread across the Internet as WannaCry,…

https://blog.fortinet.com/2017/06/28/a-technical-analysis-of-the-petya-ransomworm