These "macros" are frequently masked malware or scripts designed to steal personal data.
The "Macro" Illusion: Why You Should Never Shortcut Your Software Security
where a white-hat hacker dismantles a network distributing fake watermark software keys—without showing how the keys work.
He found it on a forum that required three layers of encryption just to view. The file was tiny: VW_Act_Macro.exe He clicked run.