By Johannes B. Ullrich, Ph.D. Malspam Pushing Sigma Ransomware
https://isc.sans.edu/forums/diary/Malspam+pushing+Sigma+ransomware/23443/
Letsencrypt Releases Wildcard Certificates
https://community.letsencrypt.org/t/acme-v2-and-wildcard-certificate-support-is-live/55579
.DS_Store Files on Alexa Top 1 Million Websites (german)
https://www.internetwache.org/analyse-der-ds-store-datei-in-den-alexa-top-1-millionen-12-03-2018/
Microsoft Moves Away from Registry Key Check for Patches
https://support.microsoft.com/en-us/help/4072699/windows-security-updates-and-antivirus-software
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