What You Need To Know about Petya, the latest ransomware attack
Petya is using the same vulnerabilities as WannaCry(pt) but has added credential harvesting and lateral movement with credentials as well. So far it is spreading pretty well, but the ransom payment mechanism has been blocked, so it’s not going to be very profitable. Patching is the best answer here. Hopefully everyone patched after WannaCry, so there isn’t much to do here. If you are not patched, why not? Patch, Patch, Patch, and backup, backup, backup.