The most common vectors for spearphishing attacks that I’ve observed in the last year involved the abuse either of Microsoft Office Macros and Packager Shell Objects, or the abuse of PowerShell or Windows Script Host. With perhaps the exception of Macros for Excel, all the remaining tricks are powered by features that are generally useless to regular users, and are rather thought for the Enterprise sector.
For some of them, I can’t even think of any reasonable legitimate use. For example: why should one be able to embed Windows executables inside a PowerPoint title slide and automatically launch them through a custom animation? (Insert here a dozen more implicit question and exclamation marks.)

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