Tracking the WannaCry Ransomware

On May 12th 2017, the WannaCry ransomware story broke across the globe, the malware exploiting a known vulnerability in Microsoft Windows: Server Message Block (SMB). By scanning networks for computers that had not yet patched this vulnerability, the ransomware spread rapidly, with infections recorded across 150 countries globally.

This technical whitepaper explores the behavior displayed by the WannaCry virus in DNS traffic and how Nominet used it to protect customers.

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