diff --git a/Source/Utility/GGHash.cpp b/Source/Utility/GGHash.cpp
new file mode 100644
index 0000000..d6d0723
--- /dev/null
+++ b/Source/Utility/GGHash.cpp
@@ -0,0 +1,17 @@
+#include "Utility/GGHash.h"
+
+// OFFSET: 0x004012B0
+
+// OFFSET: 0x00401870
+// FUNCTION: fn_00113
+DWORD CGGHash::GetSize() const {
+  return this->m_size;
+}
+
+// OFFSET: 0x00401880
+// FUNCTION: fn_00114
+DWORD CGGHash::GetError() const {
+  return this->m_error;
+}
+
+// OFFSET: 0x00401AC0
diff --git a/Source/Utility/GGHash.h b/Source/Utility/GGHash.h
new file mode 100644
index 0000000..885f564
--- /dev/null
+++ b/Source/Utility/GGHash.h
@@ -0,0 +1,35 @@
+#ifndef RAGNAROK_SOURCE_UTILITY_GGHASH_H
+#define RAGNAROK_SOURCE_UTILITY_GGHASH_H
+
+#include <cstdlib>
+#include <windows.h>
+
+class CGGHash {
+public:
+  CGGHash();
+  virtual ~CGGHash();
+
+  DWORD GetSize() const;
+  DWORD GetError() const;
+
+protected:
+  // INLINED
+  void Clear() {
+    this->m_error = 0;
+    this->m_size = 0;
+    if (this->m_data) {
+      std::free(this->m_data);
+      this->m_data = nullptr;
+    }
+  }
+
+  /* 0004 */ DWORD m_error;
+  /* 0008 */ DWORD m_size;
+  /* 000C */ BYTE* m_data;
+};
+
+#if defined(_WIN32) && !defined(_WIN64)
+static_assert(sizeof(CGGHash) == 16);
+#endif
+
+#endif
diff --git a/data/compile.json b/data/compile.json
index 1e31473..9109cb1 100644
--- a/data/compile.json
+++ b/data/compile.json
@@ -629,6 +629,7 @@
   "Source/Utility/Cipher/Rijndael.cpp": 0,
   "Source/Utility/Cipher/XorBytes.cpp": 0,
   "Source/Utility/FileSignatureVerifier.cpp": 0,
+  "Source/Utility/GGHash.cpp": 0,
   "Source/Utility/GuidParse.cpp": 0,
   "Source/Utility/Hash/MD5.cpp": 0,
   "Source/Utility/Hash/XxHash32.cpp": 0,