ISC StormCast for Monday, February 24th 2020

Old Style Excel Macro Malware
https://isc.sans.edu/forums/diary/Maldoc+Excel+4+Macros+in+OOXML+Format/25830/
Simple But Efficient VBScript Obfuscation
https://isc.sans.edu/forums/diary/Simple+but+Efficient+VBScript+Obfuscation/25828/
Let's Encrypt Beefs Up Validation
https://letsencrypt.org/2020/02/19/multi-perspective-validation.html
Google Play Store Joker / Clicken Malware
https://research.checkpoint.com/2020/android-app-fraud-haken-clicker-and-joker-premium-dialer/
Google Warns of Microsoft Edge
https://www.heise.de/security/meldung/l-f-Google-findet-den-neuen-Edge-Browser-doof-und-unsicher-4665634.html