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| 1 | #include "Helper.h" | |
| 2 | ||
| 3 | Helper::Helper() | |
| 4 | {
| |
| 5 | pID = NULL; | |
| 6 | processHandle = NULL; | |
| 7 | } | |
| 8 | ||
| 9 | Helper::Helper(DWORD pID) {
| |
| 10 | this->pID = pID; | |
| 11 | HANDLE processHandle = NULL; | |
| 12 | processHandle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, pID); | |
| 13 | if (processHandle == INVALID_HANDLE_VALUE || processHandle == NULL) {
| |
| 14 | std::cerr << "Failed to open process -- invalid handle" << std::endl; | |
| 15 | std::cerr << "Error code: " << GetLastError() << std::endl; | |
| 16 | throw "Failed to open process"; | |
| 17 | } | |
| 18 | else {
| |
| 19 | //std::cout << "Helper:: process handle sucessfully created!" << std::endl; | |
| 20 | this->processHandle = processHandle; | |
| 21 | } | |
| 22 | } | |
| 23 | ||
| 24 | ||
| 25 | Helper::~Helper() | |
| 26 | {
| |
| 27 | CloseHandle(this->processHandle); | |
| 28 | } | |
| 29 | ||
| 30 | void Helper::SetpID(DWORD pID) {this->pID = pID;}
| |
| 31 | DWORD Helper::GetpID(){ return this->pID; }
| |
| 32 | HANDLE Helper::GetprocessHandle() { return this->processHandle; }
| |
| 33 | ||
| 34 | uintptr_t Helper::GetModuleBaseAddress(TCHAR* lpszModuleName) {
| |
| 35 | uintptr_t dwModuleBaseAddress = 0; | |
| 36 | HANDLE hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pID); | |
| 37 | MODULEENTRY32 ModuleEntry32 = { 0 };
| |
| 38 | ModuleEntry32.dwSize = sizeof(MODULEENTRY32); | |
| 39 | ||
| 40 | if (Module32First(hSnapshot, &ModuleEntry32)) | |
| 41 | {
| |
| 42 | do {
| |
| 43 | if (_tcscmp(ModuleEntry32.szModule, lpszModuleName) == 0) | |
| 44 | {
| |
| 45 | dwModuleBaseAddress = (uintptr_t )ModuleEntry32.modBaseAddr; | |
| 46 | break; | |
| 47 | } | |
| 48 | } while (Module32Next(hSnapshot, &ModuleEntry32)); | |
| 49 | ||
| 50 | ||
| 51 | } | |
| 52 | CloseHandle(hSnapshot); | |
| 53 | return dwModuleBaseAddress; | |
| 54 | } | |
| 55 | ||
| 56 | uintptr_t Helper::GetDynamicAddress(uintptr_t baseAddress, vector<DWORD> offsets) {
| |
| 57 | uintptr_t dynamicAddress = baseAddress; | |
| 58 | for (int i = 0; i < offsets.size() - 1; i++) | |
| 59 | {
| |
| 60 | ReadProcessMemory(this->processHandle, (LPCVOID)(dynamicAddress + offsets[i]), &dynamicAddress, sizeof(offsets.at(i)), NULL); | |
| 61 | //std::cout << "Current Adress: " << std::hex << healthAddress << std::endl; | |
| 62 | } | |
| 63 | dynamicAddress += offsets[offsets.size() - 1]; | |
| 64 | return dynamicAddress; | |
| 65 | } | |
| 66 | ||
| 67 | void Helper::SetpBaseAddress(char moduleName[]) {
| |
| 68 | this->pBaseAddress = this->GetModuleBaseAddress(_T(moduleName)); | |
| 69 | } | |
| 70 | ||
| 71 | uintptr_t Helper::GetAddressFromSignature(vector<int> signature) {
| |
| 72 | if (this->pBaseAddress == NULL || this->processHandle == NULL) {
| |
| 73 | return NULL; | |
| 74 | } | |
| 75 | std::vector<byte> memBuffer(this->pSize); | |
| 76 | if (!ReadProcessMemory(this->processHandle, (LPCVOID)(this->pBaseAddress), memBuffer.data(), this->pSize, NULL)) {
| |
| 77 | std::cout << GetLastError() << std::endl; | |
| 78 | return NULL; | |
| 79 | } | |
| 80 | for (int i = 0; i < this->pSize; i++){
| |
| 81 | for (uintptr_t j = 0; j < signature.size();j++) {
| |
| 82 | if (signature.at(j) != -1 && signature[j] != memBuffer[i + j]) | |
| 83 | //std::cout << std::hex << signature.at(j) << std::hex << memBuffer[i + j] << std::endl; | |
| 84 | break; | |
| 85 | if(signature[j] == memBuffer[i + j] && j>0) | |
| 86 | std::cout << std::hex << int(signature[j]) << std::hex << int(memBuffer[i + j]) << j <<std::endl; | |
| 87 | if(j+1 == signature.size()) | |
| 88 | return this->pBaseAddress + i; | |
| 89 | } | |
| 90 | } | |
| 91 | return NULL; | |
| 92 | } |
