The Department of Homeland Securitys (DHS) US Computer Emergency Readiness Team (US-CERT) published the Alert (TA17-181A) on the Petya Ransomware. The agency urges organizations of updating their software and avoiding use unsupported applications and OSs. The ransomware leverages the ETERNALBLUE Exploit M2 MS17-010 to exploit vulnerabilities in Server Message Block (SMB) and makes devices unusable. The agency advises organizations following its best practices related to SMB.”]
Source: http://securityaffairs.co/wordpress/60629/breaking-news/petya-ransomware-us-cert-alert.html