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alkatrazbhop · Oct 7, 2016 · 26b8aba · 26b8aba
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diff --git a/BunnyhopAPE/BunnyhopAPE.vcxproj b/BunnyhopAPE/BunnyhopAPE.vcxproj
@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="ape.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="ape_helpers.h" />
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{1FB1F37D-D8B8-45AD-B67D-831DDE6215AF}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>BunnyhopAPE</RootNamespace>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v120</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v120</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+    <GenerateManifest>false</GenerateManifest>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <InlineFunctionExpansion>AnySuitable</InlineFunctionExpansion>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>ntdll.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <ProgramDatabaseFile />
+      <ManifestFile />
+    </Link>
+  </ItemDefinitionGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
diff --git a/BunnyhopAPE/ape.cpp b/BunnyhopAPE/ape.cpp
@@ -0,0 +1,106 @@
+#include <Windows.h>
+#include <iostream>
+#include <stdio.h>
+#include <conio.h>
+#include "ape_helpers.h"
+
+HANDLE g_hProcess;
+BYTE* g_pJumpPrediction;
+BYTE g_patchedBuffer[6];
+BYTE g_nopBuffer[6] = { 0x90, 0x90, 0x90, 0x90, 0x90, 0x90 };
+bool g_bPatched;
+int g_iOldState;
+
+void Error(char* text)
+{
+	MessageBox(0, text, "ERROR", 16);
+	ExitProcess(0);
+}
+
+void UpdateConlole()
+{
+	system("cls");
+	printf("Use SCROLL LOCK to toggle prediction.\nPrediction status: %s\n", g_bPatched ? "ON" : "OFF");
+}
+
+void EnablePrediction()
+{
+	ReadProcessMemory(g_hProcess, g_pJumpPrediction, g_patchedBuffer, 6, NULL);
+
+	if (WriteProcessMemory(g_hProcess, g_pJumpPrediction, g_nopBuffer, 6, NULL))
+		g_bPatched = true;
+	else Error("Game is already patched or signatures are outdated!");
+
+	UpdateConlole();
+}
+
+void DisablePrediction(bool notify = true)
+{
+	if (WriteProcessMemory(g_hProcess, g_pJumpPrediction, g_patchedBuffer, 6, NULL))
+	{
+		if (notify)
+			g_bPatched = false;
+	}
+	else Error("Memory access violation!");
+
+	UpdateConlole();
+}
+
+bool WINAPI ConsoleHandler(DWORD dwCtrlType)
+{
+	if (dwCtrlType == CTRL_CLOSE_EVENT && g_bPatched)
+		DisablePrediction(false);
+	else return 1;
+	return 0;
+}
+
+int main()
+{
+	SetConsoleTitle("CS:S Autobhop Prediction Enabler by alkatrazbhop");
+
+	DWORD processID;
+	printf("Waiting for CS:S to start...");
+	while (1)
+	{
+		processID = GetPIDByName("hl2.exe");
+		if (processID) break;
+		Sleep(1000);
+	}
+
+	g_hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, processID);
+
+	DWORD pClient;
+	while (1)
+	{
+		pClient = (DWORD)GetModuleHandleExtern(processID, "client.dll");
+		if (pClient) break;
+		Sleep(100);
+	}
+
+	DWORD pHL = (DWORD)GetModuleHandleExtern(processID, "hl2.exe");
+	DWORD* pCmdLine = (DWORD*)(FindPatternEx(g_hProcess, pHL, 0x4000, (PBYTE)"\x85\xC0\x79\x08\x6A\x08", "xxxxxx") - 0x13);
+	char* cmdLine = new char[255];
+	ReadProcessMemory(g_hProcess, pCmdLine, &pCmdLine, sizeof(DWORD), NULL);
+	ReadProcessMemory(g_hProcess, pCmdLine, &pCmdLine, sizeof(DWORD), NULL);
+	ReadProcessMemory(g_hProcess, pCmdLine, cmdLine, 255, NULL);
+	if (!strstr(cmdLine, " -insecure"))
+		Error("-insecure key is missing!");
+
+	g_pJumpPrediction = (BYTE*)(FindPatternEx(g_hProcess, pClient, 0x200000, (PBYTE)"\x85\xC0\x8B\x46\x08\x0F\x84\x00\xFF\xFF\xFF\xF6\x40\x28\x02\x0F\x85\x00\xFF\xFF\xFF", "xxxxxxx?xxxxxxxxx?xxx")) + 15;
+
+	SetConsoleCtrlHandler((PHANDLER_ROUTINE)&ConsoleHandler, true);
+	UpdateConlole();
+
+	while (1)
+	{
+		if (GetKeyState(VK_SCROLL) & 1 && !g_bPatched)
+			EnablePrediction();
+		else if (!(GetKeyState(VK_SCROLL) & 1) && g_bPatched)
+			DisablePrediction();
+		Sleep(100);
+	}
+
+	CloseHandle(g_hProcess);
+	while (_getch() != VK_RETURN) {}
+	return false;
+}
diff --git a/BunnyhopAPE/ape_helpers.h b/BunnyhopAPE/ape_helpers.h
@@ -0,0 +1,87 @@
+#include <TlHelp32.h>
+#include <winternl.h>
+
+DWORD GetPIDByName(const char* ProcName)
+{
+	PROCESSENTRY32 pe32;
+	HANDLE hSnapshot = NULL;
+
+	pe32.dwSize = sizeof(PROCESSENTRY32);
+	hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
+
+	if (Process32First(hSnapshot, &pe32))
+	{
+		do{
+			if (strcmp(pe32.szExeFile, ProcName) == 0)
+				return pe32.th32ProcessID;
+		} while (Process32Next(hSnapshot, &pe32));
+	}
+
+	if (hSnapshot != INVALID_HANDLE_VALUE)
+		CloseHandle(hSnapshot);
+
+	return NULL;
+}
+
+DWORD GetModuleHandleExtern(DWORD dwProcessId, LPSTR lpModuleName)
+{
+	MODULEENTRY32 lpModuleEntry = { 0 };
+	HANDLE hSnapShot = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, dwProcessId);
+	if (!hSnapShot)	return NULL;
+
+	lpModuleEntry.dwSize = sizeof(lpModuleEntry);
+	BOOL bModule = Module32First(hSnapShot, &lpModuleEntry);
+
+	while (bModule)
+	{
+		if (!strcmp(lpModuleEntry.szModule, lpModuleName))
+		{
+			CloseHandle(hSnapShot);
+			return (DWORD)lpModuleEntry.modBaseAddr;
+		}
+
+		bModule = Module32Next(hSnapShot, &lpModuleEntry);
+	}
+
+	CloseHandle(hSnapShot);
+	return NULL;
+}
+
+bool DataCompare(BYTE* pData, BYTE* bSig, char* szMask)
+{
+	for (; *szMask; ++szMask, ++pData, ++bSig)
+	{
+		if (*szMask == 'x' && *pData != *bSig)
+			return false;
+	}
+	return (*szMask) == NULL;
+}
+
+DWORD FindPatternEx(HANDLE hProc, DWORD base, DWORD len, BYTE* sig, char* mask)
+{
+	BYTE* buf = (BYTE*)VirtualAlloc(0, len, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
+	if (ReadProcessMemory(hProc, (LPCVOID)base, buf, len, NULL))
+	{
+		for (DWORD i = 0; i <= (len - strlen(mask)); i++)
+		{
+			if ((buf[i] == sig[0] && mask[0] == 'x') || (mask[0] == '?'))
+			{
+				for (int x = 0;; x++)
+				{
+					if (mask[x] == 'x')
+					{
+						if (buf[i + x] == sig[x])
+							continue;
+						else
+							break;
+					}
+					else if (mask[x] == 0x00)
+					{
+						return (DWORD)(base + i);
+					}
+				}
+			}
+		}
+	}
+	return NULL;
+}