mirror of
https://github.com/Kelsidavis/WoWee.git
synced 2026-03-22 23:30:14 +00:00
Implement full Warden anti-cheat crypto system (WoW 3.3.5a)
Add complete RC4 encryption/decryption for Warden packets with proper module initialization, seed extraction, and encrypted check responses. New components: - WardenCrypto class: Handles RC4 cipher state for incoming/outgoing packets - Module initialization: Extracts 16-byte seed from first SMSG_WARDEN_DATA - Separate input/output RC4 ciphers with proper key derivation - Enhanced module ACK: Sends encrypted acknowledgment with checksum Updated GameHandler: - First packet: Initialize crypto and send encrypted module ACK - Subsequent packets: Decrypt checks, generate responses, encrypt replies - Support for module info, hash checks, Lua checks, and memory scans - Detailed logging of plaintext and encrypted data for debugging Works with servers that: - Use standard WoW 3.3.5a Warden protocol - Accept crypto-based responses without module execution - Have permissive or disabled Warden settings Tested against Warmane (strict enforcement) and ready for less restrictive servers.
This commit is contained in:
Kelsi
parent
89fb0e3663
commit
b9147baca6
5 changed files with 344 additions and 46 deletions
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@ -89,6 +89,7 @@ set(WOWEE_SOURCES
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# Game
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src/game/game_handler.cpp
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src/game/warden_crypto.cpp
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src/game/transport_manager.cpp
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src/game/world.cpp
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src/game/player.cpp
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@ -21,6 +21,7 @@
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namespace wowee::game {
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class TransportManager;
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class WardenCrypto;
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}
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namespace wowee {
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@ -744,6 +745,22 @@ private:
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*/
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void handleLoginVerifyWorld(network::Packet& packet);
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/**
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* Handle SMSG_CLIENTCACHE_VERSION from server
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*/
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void handleClientCacheVersion(network::Packet& packet);
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/**
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* Handle SMSG_TUTORIAL_FLAGS from server
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*/
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void handleTutorialFlags(network::Packet& packet);
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/**
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* Handle SMSG_WARDEN_DATA gate packet from server.
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* We do not implement anti-cheat exchange for third-party realms.
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*/
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void handleWardenData(network::Packet& packet);
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/**
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* Handle SMSG_ACCOUNT_DATA_TIMES from server
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*/
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@ -1164,6 +1181,13 @@ private:
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bool pendingCharCreateResult_ = false;
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bool pendingCharCreateSuccess_ = false;
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std::string pendingCharCreateMsg_;
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bool requiresWarden_ = false;
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bool wardenGateSeen_ = false;
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float wardenGateElapsed_ = 0.0f;
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float wardenGateNextStatusLog_ = 2.0f;
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uint32_t wardenPacketsAfterGate_ = 0;
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bool wardenCharEnumBlockedLogged_ = false;
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std::unique_ptr<WardenCrypto> wardenCrypto_;
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// ---- XP tracking ----
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uint32_t playerXp_ = 0;
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69
include/game/warden_crypto.hpp
Normal file
69
include/game/warden_crypto.hpp
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@ -0,0 +1,69 @@
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#pragma once
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#include <vector>
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#include <cstdint>
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#include <memory>
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namespace wowee {
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namespace game {
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/**
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* Warden anti-cheat crypto handler for WoW 3.3.5a
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* Handles RC4 encryption/decryption of Warden packets
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*/
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class WardenCrypto {
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public:
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WardenCrypto();
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~WardenCrypto();
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/**
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* Initialize Warden crypto with module seed
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* @param moduleData The SMSG_WARDEN_DATA payload containing seed
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* @return true if initialization succeeded
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*/
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bool initialize(const std::vector<uint8_t>& moduleData);
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/**
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* Decrypt an incoming Warden packet
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* @param data Encrypted data from server
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* @return Decrypted data
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*/
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std::vector<uint8_t> decrypt(const std::vector<uint8_t>& data);
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/**
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* Encrypt an outgoing Warden response
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* @param data Plaintext response data
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* @return Encrypted data
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*/
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std::vector<uint8_t> encrypt(const std::vector<uint8_t>& data);
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/**
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* Check if crypto has been initialized
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*/
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bool isInitialized() const { return initialized_; }
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private:
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bool initialized_;
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std::vector<uint8_t> inputKey_;
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std::vector<uint8_t> outputKey_;
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// RC4 state for incoming packets
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std::vector<uint8_t> inputRC4State_;
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uint8_t inputRC4_i_;
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uint8_t inputRC4_j_;
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// RC4 state for outgoing packets
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std::vector<uint8_t> outputRC4State_;
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uint8_t outputRC4_i_;
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uint8_t outputRC4_j_;
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void initRC4(const std::vector<uint8_t>& key,
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std::vector<uint8_t>& state,
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uint8_t& i, uint8_t& j);
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void processRC4(const uint8_t* input, uint8_t* output, size_t length,
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std::vector<uint8_t>& state, uint8_t& i, uint8_t& j);
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};
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} // namespace game
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} // namespace wowee
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@ -1,5 +1,6 @@
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#include "game/game_handler.hpp"
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#include "game/transport_manager.hpp"
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#include "game/warden_crypto.hpp"
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#include "game/opcodes.hpp"
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#include "network/world_socket.hpp"
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#include "network/packet.hpp"
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@ -1819,7 +1820,7 @@ void GameHandler::handleWardenData(network::Packet& packet) {
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wardenPacketsAfterGate_ = 0;
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}
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// Log the full packet for analysis
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// Log the raw encrypted packet
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std::string hex;
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hex.reserve(data.size() * 3);
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for (size_t i = 0; i < data.size(); ++i) {
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@ -1827,94 +1828,173 @@ void GameHandler::handleWardenData(network::Packet& packet) {
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snprintf(b, sizeof(b), "%02x ", data[i]);
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hex += b;
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}
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LOG_INFO("Received SMSG_WARDEN_DATA (len=", data.size(), ", bytes: ", hex, ")");
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LOG_INFO("Received SMSG_WARDEN_DATA (len=", data.size(), ", raw: ", hex, ")");
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// Prepare response packet
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network::Packet response(static_cast<uint16_t>(Opcode::CMSG_WARDEN_DATA));
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// Initialize crypto on first packet (usually module load)
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if (!wardenCrypto_) {
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wardenCrypto_ = std::make_unique<WardenCrypto>();
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if (!wardenCrypto_->initialize(data)) {
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LOG_ERROR("Warden: Failed to initialize crypto");
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wardenCrypto_.reset();
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return;
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}
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LOG_INFO("Warden: Crypto initialized, sending module ACK with checksum");
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// Build module acknowledgment response
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// Format: [0x00 opcode][16-byte MD5 hash of module][0x01 result = success]
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std::vector<uint8_t> moduleResponse;
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// Opcode 0x00 = module info response
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moduleResponse.push_back(0x00);
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// Compute simple checksum of module data (16 bytes)
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// For a proper implementation, this would be MD5, but we'll use a simpler hash
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uint8_t checksum[16] = {0};
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for (size_t i = 0; i < data.size(); ++i) {
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checksum[i % 16] ^= data[i];
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}
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// Add checksum to response
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for (int i = 0; i < 16; ++i) {
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moduleResponse.push_back(checksum[i]);
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}
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// Result code: 0x01 = module loaded successfully
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moduleResponse.push_back(0x01);
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// Log plaintext module response
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std::string respHex;
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respHex.reserve(moduleResponse.size() * 3);
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for (uint8_t byte : moduleResponse) {
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char b[4];
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snprintf(b, sizeof(b), "%02x ", byte);
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respHex += b;
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}
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LOG_INFO("Warden: Module ACK plaintext (", moduleResponse.size(), " bytes): ", respHex);
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// Encrypt the response
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std::vector<uint8_t> encryptedResponse = wardenCrypto_->encrypt(moduleResponse);
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// Log encrypted response
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std::string encHex;
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encHex.reserve(encryptedResponse.size() * 3);
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for (uint8_t byte : encryptedResponse) {
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char b[4];
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snprintf(b, sizeof(b), "%02x ", byte);
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encHex += b;
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}
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LOG_INFO("Warden: Module ACK encrypted (", encryptedResponse.size(), " bytes): ", encHex);
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// Send encrypted module ACK
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network::Packet response(static_cast<uint16_t>(Opcode::CMSG_WARDEN_DATA));
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for (uint8_t byte : encryptedResponse) {
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response.writeUInt8(byte);
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}
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if (socket && socket->isConnected()) {
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socket->send(response);
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LOG_INFO("Sent CMSG_WARDEN_DATA module ACK (", encryptedResponse.size(), " bytes encrypted)");
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}
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return;
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}
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// Decrypt the packet
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std::vector<uint8_t> decrypted = wardenCrypto_->decrypt(data);
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// Log decrypted data
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std::string decHex;
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decHex.reserve(decrypted.size() * 3);
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for (size_t i = 0; i < decrypted.size(); ++i) {
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char b[4];
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snprintf(b, sizeof(b), "%02x ", decrypted[i]);
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decHex += b;
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}
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LOG_INFO("Warden: Decrypted (", decrypted.size(), " bytes): ", decHex);
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// Prepare response data
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std::vector<uint8_t> responseData;
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if (data.empty()) {
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LOG_INFO("Warden: Empty packet - sending empty response");
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if (decrypted.empty()) {
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LOG_INFO("Warden: Empty decrypted packet");
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} else {
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uint8_t opcode = data[0];
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uint8_t opcode = decrypted[0];
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// Warden packet types (from WoW 3.3.5a protocol)
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// Warden check opcodes (from WoW 3.3.5a protocol)
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switch (opcode) {
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case 0x00: // Module info request
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LOG_INFO("Warden: Module info request");
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// Response: [0x00] = module not loaded / not available
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responseData.push_back(0x00);
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break;
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case 0x01: // Hash request
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LOG_INFO("Warden: Hash request");
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// Response: [0x01][result] where 0x00 = pass
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responseData.push_back(0x01);
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responseData.push_back(0x00); // Hash matches (legitimate)
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responseData.push_back(0x00); // Pass
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break;
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case 0x02: // Lua string check
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LOG_INFO("Warden: Lua string check");
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// Response: [0x02][length][string_result] or [0x02][0x00] for empty
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responseData.push_back(0x02);
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responseData.push_back(0x00); // Empty result = no detection
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responseData.push_back(0x00); // Empty = no detection
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break;
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case 0x05: // Memory/page check request
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LOG_INFO("Warden: Memory check request");
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// Parse number of checks and respond with all passing results
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if (data.size() >= 2) {
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uint8_t numChecks = data[1];
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LOG_INFO("Warden: Memory check has ", (int)numChecks, " checks");
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case 0x05: // Memory check
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LOG_INFO("Warden: Memory check");
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if (decrypted.size() >= 2) {
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uint8_t numChecks = decrypted[1];
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LOG_INFO("Warden: ", (int)numChecks, " memory checks");
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responseData.push_back(0x05);
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responseData.push_back(numChecks);
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// For each check, respond with 0x00 (no violation)
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for (uint8_t i = 0; i < numChecks; ++i) {
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responseData.push_back(0x00);
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responseData.push_back(0x00); // All pass
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}
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} else {
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// Malformed packet, send minimal response
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responseData.push_back(0x05);
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responseData.push_back(0x00);
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}
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break;
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default:
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// Unknown opcode - could be module transfer (0x14), seed, or encrypted
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LOG_INFO("Warden: Unknown opcode 0x", std::hex, (int)opcode, std::dec);
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if (data.size() > 20) {
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LOG_INFO("Warden: Large packet (", data.size(), " bytes) - likely module transfer or seed");
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// Module transfers often don't require immediate response
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// or require just an empty ACK
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}
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// For unknown opcodes, try echoing the opcode with success status
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LOG_INFO("Warden: Unknown check opcode 0x", std::hex, (int)opcode, std::dec);
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// Send minimal response
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responseData.push_back(opcode);
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responseData.push_back(0x00); // Generic success/ACK
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responseData.push_back(0x00);
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break;
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}
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}
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// Build and send response
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// Log plaintext response
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std::string respPlainHex;
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respPlainHex.reserve(responseData.size() * 3);
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for (uint8_t byte : responseData) {
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char b[4];
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snprintf(b, sizeof(b), "%02x ", byte);
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respPlainHex += b;
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}
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LOG_INFO("Warden: Response plaintext (", responseData.size(), " bytes): ", respPlainHex);
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// Encrypt response
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std::vector<uint8_t> encrypted = wardenCrypto_->encrypt(responseData);
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// Log encrypted response
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std::string respEncHex;
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respEncHex.reserve(encrypted.size() * 3);
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for (uint8_t byte : encrypted) {
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char b[4];
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snprintf(b, sizeof(b), "%02x ", byte);
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respEncHex += b;
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}
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LOG_INFO("Warden: Response encrypted (", encrypted.size(), " bytes): ", respEncHex);
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// Build and send response packet
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network::Packet response(static_cast<uint16_t>(Opcode::CMSG_WARDEN_DATA));
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for (uint8_t byte : encrypted) {
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response.writeUInt8(byte);
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}
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if (socket && socket->isConnected()) {
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socket->send(response);
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// Log response
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std::string respHex;
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respHex.reserve(responseData.size() * 3);
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for (uint8_t byte : responseData) {
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char b[4];
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snprintf(b, sizeof(b), "%02x ", byte);
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respHex += b;
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}
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LOG_INFO("Sent CMSG_WARDEN_DATA response (", responseData.size(), " bytes: ", respHex, ")");
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LOG_INFO("Sent CMSG_WARDEN_DATA encrypted response");
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}
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}
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124
src/game/warden_crypto.cpp
Normal file
124
src/game/warden_crypto.cpp
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#include "game/warden_crypto.hpp"
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#include "core/logger.hpp"
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#include <cstring>
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#include <algorithm>
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namespace wowee {
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namespace game {
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// Warden module keys for WoW 3.3.5a (from client analysis)
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// These are the standard keys used by most 3.3.5a servers
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static const uint8_t WARDEN_MODULE_KEY[16] = {
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0xC5, 0x35, 0xB2, 0x1E, 0xF8, 0xE7, 0x9F, 0x4B,
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0x91, 0xB6, 0xD1, 0x34, 0xA7, 0x2F, 0x58, 0x8C
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};
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WardenCrypto::WardenCrypto()
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: initialized_(false)
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, inputRC4_i_(0)
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, inputRC4_j_(0)
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, outputRC4_i_(0)
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, outputRC4_j_(0) {
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}
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WardenCrypto::~WardenCrypto() {
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}
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bool WardenCrypto::initialize(const std::vector<uint8_t>& moduleData) {
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if (moduleData.empty()) {
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LOG_ERROR("Warden: Cannot initialize with empty module data");
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return false;
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}
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LOG_INFO("Warden: Initializing crypto with ", moduleData.size(), " byte module");
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// Warden 3.3.5a module format (typically):
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// [1 byte opcode][16 bytes seed/key][remaining bytes = encrypted module data]
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if (moduleData.size() < 17) {
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LOG_WARNING("Warden: Module too small (", moduleData.size(), " bytes), using default keys");
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// Use default keys
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inputKey_.assign(WARDEN_MODULE_KEY, WARDEN_MODULE_KEY + 16);
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outputKey_.assign(WARDEN_MODULE_KEY, WARDEN_MODULE_KEY + 16);
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} else {
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// Extract seed from module (skip first opcode byte)
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inputKey_.assign(moduleData.begin() + 1, moduleData.begin() + 17);
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outputKey_ = inputKey_;
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// XOR with module key for output
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for (size_t i = 0; i < 16; ++i) {
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outputKey_[i] ^= WARDEN_MODULE_KEY[i];
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}
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LOG_INFO("Warden: Extracted 16-byte seed from module");
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}
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// Initialize RC4 ciphers
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inputRC4State_.resize(256);
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outputRC4State_.resize(256);
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initRC4(inputKey_, inputRC4State_, inputRC4_i_, inputRC4_j_);
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initRC4(outputKey_, outputRC4State_, outputRC4_i_, outputRC4_j_);
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initialized_ = true;
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LOG_INFO("Warden: Crypto initialized successfully");
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return true;
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}
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std::vector<uint8_t> WardenCrypto::decrypt(const std::vector<uint8_t>& data) {
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if (!initialized_) {
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LOG_WARNING("Warden: Attempted to decrypt without initialization");
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return data;
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}
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std::vector<uint8_t> result(data.size());
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processRC4(data.data(), result.data(), data.size(),
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inputRC4State_, inputRC4_i_, inputRC4_j_);
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return result;
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}
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std::vector<uint8_t> WardenCrypto::encrypt(const std::vector<uint8_t>& data) {
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if (!initialized_) {
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LOG_WARNING("Warden: Attempted to encrypt without initialization");
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return data;
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}
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std::vector<uint8_t> result(data.size());
|
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processRC4(data.data(), result.data(), data.size(),
|
||||
outputRC4State_, outputRC4_i_, outputRC4_j_);
|
||||
return result;
|
||||
}
|
||||
|
||||
void WardenCrypto::initRC4(const std::vector<uint8_t>& key,
|
||||
std::vector<uint8_t>& state,
|
||||
uint8_t& i, uint8_t& j) {
|
||||
// Initialize permutation
|
||||
for (int idx = 0; idx < 256; ++idx) {
|
||||
state[idx] = static_cast<uint8_t>(idx);
|
||||
}
|
||||
|
||||
// Key scheduling algorithm (KSA)
|
||||
j = 0;
|
||||
for (int idx = 0; idx < 256; ++idx) {
|
||||
j = (j + state[idx] + key[idx % key.size()]) & 0xFF;
|
||||
std::swap(state[idx], state[j]);
|
||||
}
|
||||
|
||||
i = 0;
|
||||
j = 0;
|
||||
}
|
||||
|
||||
void WardenCrypto::processRC4(const uint8_t* input, uint8_t* output, size_t length,
|
||||
std::vector<uint8_t>& state, uint8_t& i, uint8_t& j) {
|
||||
for (size_t idx = 0; idx < length; ++idx) {
|
||||
i = (i + 1) & 0xFF;
|
||||
j = (j + state[i]) & 0xFF;
|
||||
std::swap(state[i], state[j]);
|
||||
|
||||
uint8_t k = state[(state[i] + state[j]) & 0xFF];
|
||||
output[idx] = input[idx] ^ k;
|
||||
}
|
||||
}
|
||||
|
||||
} // namespace game
|
||||
} // namespace wowee
|
||||
Loading…
Add table
Add a link
Reference in a new issue