‘Biggest ransomware outbreak in history’
So it turns out if you were using ESET you were protected this time via the ESET AV and Live Grid..
ESET’s network protection module was already blocking attempts to exploit the leaked vulnerability at the network level before this particular malware was even created. ESET increased the protection level for this specific threat as Win32/Filecoder.WannaCryptor.D in the detection engine update 15404 (May-12-2017, 13:20 UTC/GMT +02:00). Prior to that, ESET LiveGrid protected against this particular attack starting around 11:26AM (UTC/GMT +02:00).
ESET LiveGrid® is an advanced early warning system comprised of several cloud-based technologies. It helps detect emerging threats based on reputation and improves scanning performance by means of whitelisting. New threat information is streamed in real-time to the cloud, which enables the ESET Malware Research Lab to provide timely response and consistent protection at all times. Users can check the reputation of running processes and files directly from the program’s interface or contextual menu with additional information available from ESET LiveGrid®
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This is in reference to
‘Biggest ransomware outbreak in history’ hits nearly 100 countries with data held for ransom