ISC StormCast for Tuesday, April 27th, 2021

CAD: .DGN and .MVBA Files analyzed with oledump
https://isc.sans.edu/forums/diary/CAD+DGN+and+MVBA+Files/27354/
MacOS 0-Day Bug Patched
https://objective-see.com/blog/blog_0x64.html
https://support.apple.com/en-us/HT201222
Emotet Uninstaller Triggered
https://blog.malwarebytes.com/threat-analysis/2021/01/cleaning-up-after-emotet-the-law-enforcement-file/
HashiCorp Code Signing Key Exposed By Codecov Compromise
https://www.theregister.com/2021/04/26/hashicorp_reveals_exposure_of_private/