diff --git a/auth_bypass/main.cpp b/auth_bypass/main.cpp
index 6e2be08..31d55f4 100644
--- a/auth_bypass/main.cpp
+++ b/auth_bypass/main.cpp
@@ -35,7 +35,7 @@
 
 #define THROW_IF(expr, message) if (expr) { throw std::exception(message); }
 
-static constexpr unsigned int Build[] = { 5875, 8606, 12340 };
+static constexpr unsigned int Build[] = { 5875, 8606, 12340, 15595 };
 
 
 namespace
@@ -70,6 +70,7 @@ using VER = misc::Version;
 extern "C" __declspec(dllexport) void Load1()
 {
     const misc::Offsets *currentVersion = nullptr;
+    auto cata = false;
 
     try
     {
@@ -84,6 +85,10 @@ extern "C" __declspec(dllexport) void Load1()
             case Build[VER::WOTLK]:
                 currentVersion = &misc::Versions[VER::WOTLK];
                 break;
+            case Build[VER::Cata]:
+                currentVersion = &misc::Versions[VER::Cata];
+                cata = true;
+                break;
             default:
                 throw std::exception("Unsupported version");
         }
@@ -94,12 +99,13 @@ extern "C" __declspec(dllexport) void Load1()
     }
 
     *const_cast<const misc::Offsets **>(&misc::Offsets::Current) = currentVersion;
-    method::gMethod = std::make_unique<method::One>();
+    method::gMethod = std::make_unique<method::One>(cata);
 }
 
 extern "C" __declspec(dllexport) void Load2()
 {
     const misc::Offsets *currentVersion = nullptr;
+    auto cata = false;
 
     try
     {
@@ -114,6 +120,10 @@ extern "C" __declspec(dllexport) void Load2()
             case Build[VER::WOTLK]:
                 currentVersion = &misc::Versions[VER::WOTLK];
                 break;
+            case Build[VER::Cata]:
+                currentVersion = &misc::Versions[VER::Cata];
+                cata = true;
+                break;
             default:
                 throw std::exception("Unsupported version");
         }
@@ -124,5 +134,5 @@ extern "C" __declspec(dllexport) void Load2()
     }
 
     *const_cast<const misc::Offsets **>(&misc::Offsets::Current) = currentVersion;
-    method::gMethod = std::make_unique<method::Two>();
+    method::gMethod = std::make_unique<method::Two>(cata);
 }
\ No newline at end of file
diff --git a/auth_bypass/method.cpp b/auth_bypass/method.cpp
index 520a722..ce18312 100644
--- a/auth_bypass/method.cpp
+++ b/auth_bypass/method.cpp
@@ -152,28 +152,45 @@ namespace method
 {
 std::unique_ptr<method::Interface> gMethod;
 
-Interface::Interface()
+Interface::Interface(bool cata)
 {
     const hadesmem::Process process(::GetCurrentProcessId());
 
-    m_realmSendHook = std::make_unique<hadesmem::PatchDetour<RealmSendT>>(process,
-        hadesmem::detail::AliasCastUnchecked<RealmSendT>(misc::Offsets::Current->WowConnection__SendRaw),
-        [&username = m_username] (hadesmem::PatchDetourBase *detourBase, WowConnection *realm, void *data, int len, bool disableEncryption)
+    if (cata)
+    {
+        m_realmSendCataHook = std::make_unique<hadesmem::PatchDetour<RealmSendCataT>>(process,
+            hadesmem::detail::AliasCastUnchecked<RealmSendCataT>(misc::Offsets::Current->WowConnection__SendRaw),
+            [&username = m_username] (hadesmem::PatchDetourBase *detourBase, WowConnection *realm, void *data, int len)
+            {
+                AmmendRealmPacket(data, username);
+                auto const orig = detourBase->GetTrampolineT<RealmSendCataT>();
+                return (realm->*orig)(data, len);
+            }
+        );
+
+        m_realmSendCataHook->Apply();
+    }
+    else
+    {
+        m_realmSendHook = std::make_unique<hadesmem::PatchDetour<RealmSendT>>(process,
+            hadesmem::detail::AliasCastUnchecked<RealmSendT>(misc::Offsets::Current->WowConnection__SendRaw),
+            [&username = m_username] (hadesmem::PatchDetourBase *detourBase, WowConnection *realm, void *data, int len, bool disableEncryption)
         {
             AmmendRealmPacket(data, username);
             auto const orig = detourBase->GetTrampolineT<RealmSendT>();
             return (realm->*orig)(data, len, disableEncryption);
         }
-    );
+        );
 
-    m_realmSendHook->Apply();
+        m_realmSendHook->Apply();
+    }
 
     std::vector<std::uint8_t> nopPatch(2, 0x90);
     m_ignoreSRP6Patch = std::make_unique<hadesmem::PatchRaw>(process, reinterpret_cast<PVOID>(misc::Offsets::Current->IgnoreServerSRP6), nopPatch);
     m_ignoreSRP6Patch->Apply();
 }
 
-One::One()
+One::One(bool cata) : Interface(cata)
 {
     const hadesmem::Process process(::GetCurrentProcessId());
 
@@ -193,7 +210,7 @@ One::One()
     m_gruntClientLinkPatch->Apply();
 }
 
-Two::Two()
+Two::Two(bool cata) : Interface(cata)
 {
     const hadesmem::Process process(::GetCurrentProcessId());
 
diff --git a/auth_bypass/method.hpp b/auth_bypass/method.hpp
index d291021..3f165e1 100644
--- a/auth_bypass/method.hpp
+++ b/auth_bypass/method.hpp
@@ -43,9 +43,11 @@ class Interface
         };
 
         using RealmSendT = int(__thiscall WowConnection::*)(void *data, int len, bool disableEncryption);
+        using RealmSendCataT = int(__thiscall WowConnection::*)(void *data, int len);
 
     private:
         std::unique_ptr<hadesmem::PatchDetour<RealmSendT>> m_realmSendHook;
+        std::unique_ptr<hadesmem::PatchDetour<RealmSendCataT>> m_realmSendCataHook;
 
         std::unique_ptr<hadesmem::PatchRaw> m_ignoreSRP6Patch;
 
@@ -53,7 +55,7 @@ class Interface
         std::string m_username;
 
     public:
-        Interface();
+        Interface(bool cata);
 
         const std::string &GetUsername() const { return m_username; }
 
@@ -67,7 +69,7 @@ class One : public Interface
         std::unique_ptr<hadesmem::PatchRaw> m_gruntClientLinkPatch;
 
     public:
-        One();
+        One(bool cata);
 
         virtual bool IsOne() const { return true; }
 };
@@ -92,7 +94,7 @@ class Two : public Interface
         std::unique_ptr<hadesmem::PatchDetour<CalculateProofT>> m_calculateProofHook;
 
     public:
-        Two();
+        Two(bool cata);
 
         virtual bool IsOne() const { return false; }
 };
diff --git a/auth_bypass/misc.hpp b/auth_bypass/misc.hpp
index b47dea4..6059288 100644
--- a/auth_bypass/misc.hpp
+++ b/auth_bypass/misc.hpp
@@ -62,7 +62,8 @@ enum Version
 {
     Classic = 0,
     TBC,
-    WOTLK
+    WOTLK,
+    Cata
 };
 
 constexpr struct Offsets
@@ -127,6 +128,21 @@ constexpr struct Offsets
         0x00,
         0x20,
         0x48
+    },
+    // Cataclysm
+    {
+        0x54E5A0,
+        0xD27628,
+        0xB03A36,
+        0x4CF0E0,
+        0xB79BB9,
+        0xB3A580,
+        0xA4,
+        0xC8,
+        0x1CC,
+        0x00,
+        0x20,
+        0x48
     }
 };
 }
\ No newline at end of file