如果 exe 没有清单，如何通过反射加载 exe？

Posted 2023-03-31

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【中文标题】如果 exe 没有清单，如何通过反射加载 exe？【英文标题】：How to load exe with reflection if exe does not have a manifest? 【发布时间】：2021-10-02 09:05:21 【问题描述】：

我有一个可执行文件的转储（运行时：v2.0.50727）。它运行良好，没有任何错误。我可以将它加载到 DnSpy 进行调试或加载到 ILSpy。它们都表示所有引用都已成功解决。

但是，我无法使用此代码加载它：

try

    var second_module = System.Reflection.Assembly.LoadFrom("myprog.bin");

catch (Exception e)

    Console.WriteLine(e.ToString());

它给了我以下错误：

System.BadImageFormatException: Could not load file or assembly 'file:///myprog.bin' or one of its dependencies. The module was expected to contain an assembly manifest.
File name: 'file:///myprog.bin'
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.InternalLoadFrom(String assemblyFile, Evidence securityEvidence, Byte[] hashValue, AssemblyHashAlgorithm hashAlgorithm, Boolean forIntrospection, Boolean suppressSecurityChecks, StackCrawlMark& stackMark)
   at System.Reflection.Assembly.LoadFrom(String assemblyFile)
   at myproggg.Program.Main(String[] args) in c:\Sources\My\myproggg\Program.cs:line 11

=== Pre-bind state information ===
LOG: Where-ref bind. Location = myprog.bin
LOG: Appbase = file:///c:/Sources/My/myproggg/bin/x86/Debug/
LOG: Initial PrivatePath = NULL
Calling assembly : (Unknown).
===
LOG: This bind starts in LoadFrom load context.
WRN: Native image will not be probed in LoadFrom context. Native image will only be probed in default load context, like with Assembly.Load().
LOG: Using application configuration file: c:\Sources\My\myproggg\bin\x86\Debug\myproggg.exe.Config
LOG: Using host configuration file:
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Attempting download of new URL file:///c:/Sources/My/MPCExtractor/examples/MP/myprog.bin.
ERR: Failed to complete setup of assembly (hr = 0x80131018). Probing terminated.

我尝试执行以下步骤：

将编译选项从“Any CPU”更改为“x86”。没有区别。

将框架更改为 2.0 和 4.5。无论我使用什么框架，它都会向我询问清单。

以上都没有帮到我。

我还能做些什么来加载这个转储的可执行文件？

【问题讨论】：

试试System.Reflection.Assembly.Load(byte[] rawAssembly);重载。谢谢你的魔法！但是为什么这种方法有效呢？ 【参考方案1】：

您创建的.bin 文件可追溯到 .NET 2.0 运行时使用的 COFF。您也可以使用dumpbin 来获取.bin 文件。文档说明