本文介绍了.NET下的JIT层加密点与脱壳技巧，包括IL代码，Token，异常处理子句，局部变量这四种加密，并给出了一份基础的脱壳机框架源码。文中的内容适用于.NET Framework全版本，.NET Core 1.0~3.1，.NET 5+也大致相同。文中的.NET若未作说明，均指代.NET Framework。

This article introduces techniques for encrypting and unpacking at the JIT layer in .NET, including IL code, Tokens, exception handling clauses, and local variables. It also provides a basic JIT unpacking framework source code. The content of this article is applicable to all versions of the .NET Framework, .NET Core 1.0-3.1, and .NET 5+. If not otherwise specified, “.NET” in this article refers to the “.NET Framework”.