.NET

File Format

  • .text - Import Table, Import Address Table and .NET Section
  • .reloc - To relocate the address which the EntryPoint instruction jumps to (it's the only address contained the IAT). The IT counts just one imported module (mscoree.dll) and one imported function (_CorExeMain for executables and _CorDllMain for dynamic load libraries).
  • .rsrc - Main icon for an executable, since all others resources are in the .NET Section.

References: - https://www.ntcore.com/files/dotnetformat.htm - https://www.red-gate.com/simple-talk/blogs/anatomy-of-a-net-assembly-pe-headers/

Dynamically load memory-only modules

References: - https://www.endgame.com/blog/technical-blog/hunting-memory-net-attacks

.NET framework included in OS version

https://blogs.msdn.microsoft.com/astebner/2007/03/14/mailbag-what-version-of-the-net-framework-is-included-in-what-version-of-the-os/

Tools

References