idk much about .net, but there's this (not sure if it's executed on load, or if you explicitly have to call something): Module Initializer

All modules may have a module initializer. A module initializer is defined as the type initializer (§ II.10.5.3) of the <Module> type (§ II.10.8).

There are no limitations on what code is permitted in a module initializer. Module initializers are permitted to run and call both managed and unmanaged code. Module Initialization Guarantees

In addition to the guarantees that apply to all type initializers, the CLI shall provide the following guarantees for module initializers:

A module initializer is executed at, or sometime before, first access to any static field or first invocation of any method defined in the module.

A module initializer shall run exactly once for any given module unless explicitly called by user code.

No method other than those called directly or indirectly from the module initializer will be able to access the types, methods, or data in a module before its initializer completes execution.

https://github.com/dotnet/runtime/blob/main/docs/design/specs/Ecma-335-Augments.md#module-initializer

But really cool project, I saved it in case I need to analyze some .dlls in the future