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#include "pch.h"
#include "KMemDriver.h"
#include "KInterface.h"
#include "DLLHelper.h"
#include "PatternScanner.h"
#include <array>
#include <iostream>
#include <iomanip>
#include <windows.h>
#include <Shlwapi.h>
#define WHEXOUT std::setfill(L'0') << std::setw(16) << std::hex
static BOOL running = false;
static const wchar_t *wName = L"HUNT";
static bool consoleHandler(int signal) {
if (signal == CTRL_C_EVENT) {
if (!running)
exit(EXIT_FAILURE);
running = false;
std::wcout << L"Waiting for graceful shutdown .." << std::endl;
}
return true;
}
static void printBuf(UCHAR *buf, SIZE_T siz, SIZE_T bytesBeforeNewline) {
unsigned int i, j;
const unsigned char colors[] = { 10,11,12,13,14,15 };
HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
for (i = 0, j = 0; i < siz; ++i) {
if (i % bytesBeforeNewline == 0) {
SetConsoleTextAttribute(hConsole, colors[j++ % (sizeof colors)]);
wprintf(L"\n0x%04X: ", i);
}
wprintf(L"%02X ", buf[i]);
}
wprintf(L"\n");
SetConsoleTextAttribute(hConsole, 15);
}
static BOOL CALLBACK enumWindowsProc(HWND hWnd, LPARAM lParam)
{
int length = GetWindowTextLength(hWnd);
TCHAR* buffer;
buffer = new TCHAR[length + 1];
memset(buffer, 0, (length + 1) * sizeof(TCHAR));
GetWindowText(hWnd, buffer, length + 1);
if (!wcscmp(buffer, wName))
*(HWND *)lParam = hWnd;
delete[] buffer;
return TRUE;
}
int wmain(int argc, wchar_t **argv)
{
HANDLE targetPID = 0;
PVOID buf;
HANDLE kevent;
HANDLE uevent;
KInterface &ki = KInterface::getInstance();
std::vector<MEMORY_BASIC_INFORMATION> pages;
std::vector<MODULE_DATA> modules;
std::wcout << L"Waiting for window title: '" << wName << L"'" << std::endl;
HWND targetHWND = NULL;
while (1) {
if (!EnumWindows(enumWindowsProc, (LPARAM)&targetHWND)) {
return 1;
}
if (targetHWND) {
std::wcout << L"Found window '" << wName << L"' with Handle 0x"
<< std::hex << targetHWND << std::endl;
break;
}
Sleep(1000);
}
GetWindowThreadProcessId(targetHWND, (LPDWORD)&targetPID);
SetConsoleCtrlHandler((PHANDLER_ROUTINE)consoleHandler, TRUE);
if (!ki.Init()) {
std::wcout << L"Kernel Interface Init() failed" << std::endl;
return 1;
}
try {
buf = ki.getBuffer();
kevent = ki.getKHandle();
uevent = ki.getUHandle();
}
catch (std::runtime_error& err) {
std::wcout << err.what() << std::endl;
return 1;
}
std::wcout << L"Buffer.: " << buf << std::endl;
std::wcout << L"KHandle: " << kevent << std::endl;
std::wcout << L"UHandle: " << uevent << std::endl;
if (!ki.Handshake()) {
std::wcout << L"Kernel Interface Handshake() failed" << std::endl;
return 1;
}
if (targetPID) {
if (!ki.Modules(targetPID, modules))
std::wcout << L"Kernel Interface Modules() failed with 0x"
<< std::hex << ki.getLastNtStatus() << std::endl;
else std::wcout << L"Got " << std::dec << modules.size() << L" modules for pid 0x"
<< std::hex << targetPID << std::endl;
if (!ki.Pages(targetPID, pages))
std::wcout << L"Kernel Interface Pages() failed with 0x"
<< std::hex << ki.getLastNtStatus() << std::endl;
else std::wcout << L"Got " << std::dec << pages.size() << L" mapped pages for pid 0x"
<< std::hex << targetPID << std::endl;
}
running = TRUE;
do {
if (ki.RecvWait() == SRR_TIMEOUT) {
std::wcout << L"Ping -> ";
if (!ki.Ping()) {
std::wcout << L"Got no valid PONG, abort!" << std::endl;
running = FALSE;
}
else std::wcout << L"PONG!" << std::endl;
}
if (!running)
break;
try {
if (targetPID) {
for (MODULE_DATA& md : modules) {
if (!strncmp(md.BaseDllName, "CryEntitySystem.dll",
sizeof md.BaseDllName))
{
/* "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.16.27023\bin\Hostx64\x64\cl.exe" /Zp2 /c /d1reportSingleClassLayoutCEntitySystem C:\Users\segfault\Source\Repos\CRYENGINE\Code\CryEngine\CryEntitySystem\EntitySystem.cpp /I C:\Users\segfault\Source\Repos\CRYENGINE\Code\CryEngine\CryCommon /I "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.16.27023\include" /I "C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\ucrt" /I "C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\shared" /I "C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\um" */
static bool first = true;
if (first) {
first = false;
SymbolResolver sresolv;
DLLHelper dll(sresolv);
if (!dll.Init(targetPID, "./TestDLL.dll")) {
std::wcout << L"DLL Init failed" << std::endl;
}
if (!dll.VerifyHeader()) {
std::wcout << L"DLL VerifyHeader failed" << std::endl;
}
if (!dll.InitTargetMemory(/* 0x7ffe00000000 */)) {
std::wcout << L"DLL InitTargetMemory failed" << std::endl;
}
if (!dll.HasImports())
{
std::wcout << L"DLL has no ImportTable" << std::endl;
}
else if (!dll.FixImports()) {
std::wcout << L"DLL FixImports failed" << std::endl;
}
if (!dll.HasRelocs()) {
std::wcout << L"DLL has no RelocTable" << std::endl;
}
else if (!dll.FixRelocs()) {
std::wcout << L"DLL FixRelocs failed" << std::endl;
}
if (!dll.CopyHeaderAndSections()) {
std::wcout << L"DLL CopyHeaderAndSections failed" << std::endl;
}
std::wcout << L"DLL mapping succesful, "
<< "BaseAddress: " << WHEXOUT << dll.GetBaseAddress()
<< ", EntryPoint: " << WHEXOUT << dll.GetEntryPoint() << std::endl;
UINT64 targetAddr = dll.GetBaseAddress();
UINT64 g_pEnvSysSigged = NULL;
UINT64 g_pCCryActionSigged = NULL;
UINT64 g_pEntSys = 0;
g_pEntSys = (UINT64)md.DllBase + 0x28E3F8;
for (MODULE_DATA& md : modules) {
if (!strncmp(md.BaseDllName, "CryAction.dll",
sizeof md.BaseDllName)) {
struct loadlib_user_data llua;
char * cryDllDir = new char[sizeof md.FullDllPath];
std::memcpy(cryDllDir, md.FullDllPath, sizeof md.FullDllPath);
PathRemoveFileSpecA(cryDllDir);
llua.additionalDllSearchDirectories.push_back(std::string(cryDllDir));
delete cryDllDir;
for (auto& dir : llua.additionalDllSearchDirectories) {
std::wcout << L"AdditionalDLLDir: "
<< std::wstring(dir.begin(), dir.end()) << std::endl;
}
{
PatternScanner pscan(sresolv, &map_loadlib, &llua);
std::vector<SIZE_T> foundAddresses;
pscan.Scan(md, "48 8B 48 20 48 8B 01 FF 90 20 01 00 00", foundAddresses);
for (auto& addr : foundAddresses) {
g_pEnvSysSigged = KMemory::Rpm<UINT64>(targetPID, (PVOID)(addr - 0x8));
g_pEnvSysSigged >>= 32;
g_pEnvSysSigged += addr;
std::wcout << "g_pEnvSys via SigScan: " << g_pEnvSysSigged << std::endl;
}
}
{
PatternScanner pscan(sresolv, &map_loadlib, &llua);
std::vector<SIZE_T> foundAddresses;
pscan.Scan(md, "48 89 6C 24 38 48 8D 2D ?? ?? ?? ?? 48 8B 11", foundAddresses);
for (auto& addr : foundAddresses) {
g_pCCryActionSigged = KMemory::Rpm<UINT64>(targetPID, (PVOID)(addr - 0x8));
g_pCCryActionSigged >>= 32;
g_pCCryActionSigged += addr;
std::wcout << "g_pCCryAction via SigScan: " << g_pCCryActionSigged << std::endl;
}
}
break;
}
}
std::wcout << L"g_pEntSys: " << g_pEntSys << std::endl;
BYTE cc[] = { /* push rax; push rbx; push rcx; push rdx; push rsi;
push rdi; push rsp; push rbp; push r8; push r9;
push r10; push r11; push r12; push r13; push r14;
push r15 */
0x50, 0x53, 0x51, 0x52, 0x56, 0x57,
0x54, 0x55, 0x41, 0x50, 0x41, 0x51,
0x41, 0x52, 0x41, 0x53, 0x41, 0x54,
0x41, 0x55, 0x41, 0x56, 0x41, 0x57,
/* nops */
0x90, 0x90, 0x90, 0x90, 0x90,
/* mov rcx, 0x0000000000000000 */
0x48, 0xB9,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* mov rax, 0x0000000000000000 */
0x48, 0xB8,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* call rax */
0xFF, 0xD0,
/* nops */
0x90, 0x90,
/* pop r15; pop r14; pop r13; pop r12; pop r11;
pop r10; pop r9; pop r8; pop rbp; pop rsp;
pop rdi; pop rsi; pop rdx; pop rcx; pop rbx;
pop rax */
0x41, 0x5F, 0x41, 0x5E, 0x41, 0x5D,
0x41, 0x5C, 0x41, 0x5B, 0x41, 0x5A,
0x41, 0x59, 0x41, 0x58, 0x5D, 0x5C,
0x5F, 0x5E, 0x5A, 0x59, 0x5B, 0x58,
/* nops */
0x90, 0x90,
/* mov rax, 0x0000000000000000 */
0x48, 0xB8,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* jmp rax */
0xFF, 0xE0,
/* the following is part of the HuntCtx struct */
/* ptr to ptr to EntitySystem */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* ptr to ptr to GlobalEnv */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* ptr to ptr to CCryAction */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
*(UINT64 *)((BYTE *)cc + 31) = targetAddr + 91;
*(UINT64 *)((BYTE *)cc + 41) = dll.GetEntryPoint();
/* PATTERN: 48 89 4C 24 08 48 83 EC 48 +0x275 */
UINT64 jumpBackAddr = (UINT64)md.DllBase + 0x70875;
*(UINT64 *)((BYTE *)cc + 81) = jumpBackAddr;
*(UINT64 *)((BYTE *)cc + 91) = g_pEntSys;
*(UINT64 *)((BYTE *)cc + 99) = g_pEnvSysSigged;
*(UINT64 *)((BYTE *)cc + 107) = g_pCCryActionSigged;
printBuf(cc, sizeof cc, 32);
KMemoryBuf::Wpm<sizeof cc>(targetPID, (PVOID)targetAddr, &cc[0]);
/* mov rax, 0x0000000000000000; jmp rax */
BYTE dd[] = { 0x48, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xE0 };
*(UINT64 *)((BYTE *)dd + 2) = (UINT64)targetAddr;
printBuf(dd, sizeof dd, 32);
/* PATTERN: 48 89 4C 24 08 48 83 EC 48 +0x9 */
KMemoryBuf::Wpm<sizeof dd>(targetPID, (PVOID)((UINT64)md.DllBase + 0x70609), &dd[0]);
#if 0
Sleep(1000);
if (!ki.VUnlink(targetPID, targetAddr)) {
std::wcout << L"VUnlink failed" << std::endl;
}
#endif
}
}
}
}
}
catch (std::runtime_error& err) {
std::wcout << err.what() << std::endl;
}
} while (running);
std::wcout << L"Driver shutdown .." << std::endl;
ki.Exit();
return 0;
}
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