Machine learning thwarted 'massive' Windows crypto-jacking attack

It said the attack was first noticed at noon on March 6, when Windows computers using Windows Defender antivirus began to report a new and rapidly growing campaign. Defender began to analyse and block the attack, initially removing it from over 80,000 computers. Over the course of the next 12 hours, the malware proliferated through Russia, Turkey and Ukraine. At least 400,000 machines were infected. The attack was unusually aggressive and spread far more rapidly than typical malware outbreaks.