ISC StormCast for Tuesday, August 4th 2020

VBA Macro With Multiple Command and Control Channels
https://isc.sans.edu/forums/diary/Powershell+Bot+with+Multiple+C2+Protocols/26420/
Boothole Patch Causes Unbootable Systems
https://access.redhat.com/solutions/5272311
https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass#Recovery
Disabling MacOS TCC
https://objective-see.com/blog/blog_0x4C.html
CISA Publishes Details about Chinese Malware
https://us-cert.cisa.gov/ncas/current-activity/2020/08/03/chinese-malicious-cyber-activity