update

Author: 0a777h

_posts/2025-06-22-02.md

@@ -389,5 +389,38 @@ void ObfuscationSEHTest() {
 }
 ```
 
+## Avoiding C++ exception handlers
+
+SEH works with Windows system specifications. C++ EH, on the other hand, depends on the compiler specification (e.g. MSVC/Clang/GCC/Etc.), which can be circumvented by using the SDK as described below.
+
+1. Unlike SEH, Catch syntax in C++ is represented as a separate function, so we apply the SDK separately as shown below.
+2. In addition, the C++ EH records where exceptions can be thrown. 
+   For this reason, code that can throw exceptions must be excluded from SDK sections.
+
+```cpp
+#pragma optimize("", off) 
+void test() {
+   try {
+      VL_OBFUSCATION_BEGIN;
+
+      printf("     > ObfuscationCxxEHTest \n");
+
+      VL_OBFUSCATION_END;
+
+      // *** Raise Exception
+      throw std::runtime_error("Something went wrong - 1");
+   }
+   catch (...) {
+      VL_OBFUSCATION_BEGIN;
+
+      printf("     > ObfuscationCxxEHTest Catch .. \n");
+
+      VL_OBFUSCATION_END;
+   }
+
+   return;
+}  
+```
+
 ---