On 25 May, Silicon reported that Microsoft has warned of a “massive” malware campaign that spreads via scam emails made to appear to have been sent by a major US health research institute. They use Excel spreadsheets containing Covid-19 data as a lure, then execute malicious macros that give attackers control over systems. The pandemic-themed campaign began on 12 May and has used several hundred unique Excel attachments, making it more difficult to protect against.
https://www.silicon.co.uk/workspace/microsoft-pandemic-phishing-345165
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