What are the different shellcode execution methods used by avet?

avet provides three core shellcode execution functions: `exec_shellcode` for standard x86 shellcode using a function pointer, `exec_shellcode_ASCIIMSF` for alphanumeric shellcode using inline assembly with EAX register, and `exec_shellcode64` for 64-bit shellcode with `VirtualProtect` to set memory permissions. Each corresponds to specific `msfvenom` payload generators, such as using `x86/xor` or `x64/xor` encoders. The flexibility allows testers to choose the appropriate method for their target environment. For more on executing .NET assemblies from memory, see Assembly.Load exploitation analysis.