WeChatFerry/spy/util.cpp
2023-06-08 16:23:21 +08:00

284 lines
7.2 KiB
C++
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#include "Shlwapi.h"
#include "framework.h"
#include <codecvt>
#include <locale>
#include <string.h>
#include <strsafe.h>
#include <tlhelp32.h>
#include <vector>
#include <wchar.h>
#include "util.h"
#pragma comment(lib, "shlwapi")
#pragma comment(lib, "Version.lib")
using namespace std;
wstring String2Wstring(string s)
{
if (s.empty())
return wstring();
int size_needed = MultiByteToWideChar(CP_UTF8, 0, &s[0], (int)s.size(), NULL, 0);
wstring ws(size_needed, 0);
MultiByteToWideChar(CP_UTF8, 0, &s[0], (int)s.size(), &ws[0], size_needed);
return ws;
}
string Wstring2String(wstring ws)
{
if (ws.empty())
return string();
int size_needed = WideCharToMultiByte(CP_UTF8, 0, &ws[0], (int)ws.size(), NULL, 0, NULL, NULL);
string s(size_needed, 0);
WideCharToMultiByte(CP_UTF8, 0, &ws[0], (int)ws.size(), &s[0], size_needed, NULL, NULL);
return s;
}
static int GetWeChatPath(wchar_t *path)
{
int ret = -1;
HKEY hKey = NULL;
// HKEY_CURRENT_USER\Software\Tencent\WeChat InstallPath = xx
if (ERROR_SUCCESS != RegOpenKey(HKEY_CURRENT_USER, L"Software\\Tencent\\WeChat", &hKey)) {
ret = GetLastError();
return ret;
}
DWORD Type = REG_SZ;
DWORD cbData = MAX_PATH * sizeof(WCHAR);
if (ERROR_SUCCESS != RegQueryValueEx(hKey, L"InstallPath", 0, &Type, (LPBYTE)path, &cbData)) {
ret = GetLastError();
goto __exit;
}
if (path != NULL) {
PathAppend(path, WECHAREXE);
}
__exit:
if (hKey) {
RegCloseKey(hKey);
}
return ERROR_SUCCESS;
}
static int GetWeChatWinDLLPath(wchar_t *path)
{
int ret = GetWeChatPath(path);
if (ret != ERROR_SUCCESS) {
return ret;
}
PathRemoveFileSpecW(path);
PathAppendW(path, WECHATWINDLL);
if (!PathFileExists(path)) {
// 微信从大约3.7开始,增加了一层版本目录: [3.7.0.29]
PathRemoveFileSpec(path);
_wfinddata_t findData;
wstring dir = wstring(path) + L"\\[*.*";
intptr_t handle = _wfindfirst(dir.c_str(), &findData);
if (handle == -1) { // 检查是否成功
return -1;
}
wstring dllPath = wstring(path) + L"\\" + findData.name;
wcscpy_s(path, MAX_PATH, dllPath.c_str());
PathAppend(path, WECHATWINDLL);
}
return ret;
}
static bool GetFileVersion(const wchar_t *filePath, wchar_t *version)
{
if (wcslen(filePath) > 0 && PathFileExists(filePath)) {
VS_FIXEDFILEINFO *pVerInfo = NULL;
DWORD dwTemp, dwSize;
BYTE *pData = NULL;
UINT uLen;
dwSize = GetFileVersionInfoSize(filePath, &dwTemp);
if (dwSize == 0) {
return false;
}
pData = new BYTE[dwSize + 1];
if (pData == NULL) {
return false;
}
if (!GetFileVersionInfo(filePath, 0, dwSize, pData)) {
delete[] pData;
return false;
}
if (!VerQueryValue(pData, TEXT("\\"), (void **)&pVerInfo, &uLen)) {
delete[] pData;
return false;
}
DWORD verMS = pVerInfo->dwFileVersionMS;
DWORD verLS = pVerInfo->dwFileVersionLS;
DWORD major = HIWORD(verMS);
DWORD minor = LOWORD(verMS);
DWORD build = HIWORD(verLS);
DWORD revision = LOWORD(verLS);
delete[] pData;
StringCbPrintf(version, 0x20, TEXT("%d.%d.%d.%d"), major, minor, build, revision);
return true;
}
return false;
}
int GetWeChatVersion(wchar_t *version)
{
WCHAR Path[MAX_PATH] = { 0 };
int ret = GetWeChatWinDLLPath(Path);
if (ret != ERROR_SUCCESS) {
return ret;
}
ret = GetFileVersion(Path, version);
return ret;
}
DWORD GetWeChatPid()
{
DWORD pid = 0;
HANDLE hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
PROCESSENTRY32 pe32 = { sizeof(PROCESSENTRY32) };
while (Process32Next(hSnapshot, &pe32)) {
wstring strProcess = pe32.szExeFile;
if (strProcess == WECHAREXE) {
pid = pe32.th32ProcessID;
break;
}
}
CloseHandle(hSnapshot);
return pid;
}
int OpenWeChat(DWORD *pid)
{
*pid = GetWeChatPid();
if (*pid) {
return ERROR_SUCCESS;
}
int ret = -1;
STARTUPINFO si = { sizeof(si) };
WCHAR Path[MAX_PATH] = { 0 };
PROCESS_INFORMATION pi = { 0 };
ret = GetWeChatPath(Path);
if (ERROR_SUCCESS != ret) {
return ret;
}
if (!CreateProcess(NULL, Path, NULL, NULL, FALSE, CREATE_NEW_CONSOLE, NULL, NULL, &si, &pi)) {
return GetLastError();
}
CloseHandle(pi.hThread);
CloseHandle(pi.hProcess);
*pid = pi.dwProcessId;
return ERROR_SUCCESS;
}
int GetWstringByAddress(DWORD address, wchar_t *buffer, DWORD buffer_size)
{
DWORD strLength = GET_DWORD(address + 4);
if (strLength == 0) {
return 0;
} else if (strLength > buffer_size) {
strLength = buffer_size - 1;
}
wmemcpy_s(buffer, strLength + 1, GET_WSTRING(address), strLength + 1);
return strLength;
}
string GetStringByAddress(DWORD address)
{
DWORD strLength = GET_DWORD(address + 4);
return Wstring2String(wstring(GET_WSTRING(address), strLength));
}
string GetStringByStrAddr(DWORD addr)
{
DWORD strLength = GET_DWORD(addr + 4);
return strLength ? string(GET_STRING(addr), strLength) : string();
}
string GetStringByWstrAddr(DWORD addr)
{
DWORD strLength = GET_DWORD(addr + 4);
return strLength ? Wstring2String(wstring(GET_WSTRING(addr), strLength)) : string();
}
DWORD GetMemoryIntByAddress(HANDLE hProcess, DWORD address)
{
DWORD value = 0;
unsigned char data[4] = { 0 };
if (ReadProcessMemory(hProcess, (LPVOID)address, data, 4, 0)) {
value = data[0] & 0xFF;
value |= ((data[1] << 8) & 0xFF00);
value |= ((data[2] << 16) & 0xFF0000);
value |= ((data[3] << 24) & 0xFF000000);
}
return value;
}
wstring GetUnicodeInfoByAddress(HANDLE hProcess, DWORD address)
{
wstring value = L"";
DWORD strAddress = GetMemoryIntByAddress(hProcess, address);
DWORD strLen = GetMemoryIntByAddress(hProcess, address + 0x4);
if (strLen > 500)
return value;
wchar_t cValue[500] = { 0 };
memset(cValue, 0, sizeof(cValue) / sizeof(wchar_t));
if (ReadProcessMemory(hProcess, (LPVOID)strAddress, cValue, (strLen + 1) * 2, 0)) {
value = wstring(cValue);
}
return value;
}
void DbgMsg(const char *zcFormat, ...)
{
// initialize use of the variable argument array
va_list vaArgs;
va_start(vaArgs, zcFormat);
// reliably acquire the size
// from a copy of the variable argument array
// and a functionally reliable call to mock the formatting
va_list vaArgsCopy;
va_copy(vaArgsCopy, vaArgs);
const int iLen = std::vsnprintf(NULL, 0, zcFormat, vaArgsCopy);
va_end(vaArgsCopy);
// return a formatted string without risking memory mismanagement
// and without assuming any compiler or platform specific behavior
std::vector<char> zc(iLen + 1);
std::vsnprintf(zc.data(), zc.size(), zcFormat, vaArgs);
va_end(vaArgs);
std::string strText(zc.data(), iLen);
OutputDebugStringA(strText.c_str());
}