public void CallEntrypoint(byte[] rawImage, UInt32 moduleHandle)
{
// GET HEADERS
Tools.GetImageHeaders(rawImage, out NT.IMAGE_DOS_HEADER dosHeader, out NT.IMAGE_FILE_HEADER fileHeader, out NT.IMAGE_OPTIONAL_HEADER64 optionalHeader);
// GET DLLMAIN
UInt32 entrypoint = moduleHandle + optionalHeader.AddressOfEntryPoint;
if (optionalHeader.AddressOfEntryPoint == 0)
{
Log.LogError($"Invalid Entrypoint - skipping {moduleHandle.ToString("x2")}");
return;
}
Log.LogVariable("AddressOfEntryPoint", optionalHeader.AddressOfEntryPoint.ToString("x2"));
// GET PROPER SHELLCODE FOR EXECUTION TYPE
byte[] shellcode = ShellcodeGenerator.CallDllMain(moduleHandle, entrypoint, TypeOfExecution == ExecutionType.HijackThread);
// EXECUTE DLLMAIN
switch (TypeOfExecution)
{
#region Create Thread
case ExecutionType.CreateThread:
// INJECT OUR SHELLCODE -> REMOTE PROCESS TO CALL DLLMAIN REMOTELY :)
TargetProcess.InjectShellcode(shellcode);
break;
#endregion
#region Hijack Thread
case ExecutionType.HijackThread:
// WRITE SHELLCODE TO TARGET MEMORY
var remoteShellcodePointer = TargetProcess.AllocateAndWrite(shellcode, NT.AllocationType.Commit | NT.AllocationType.Reserve, NT.MemoryProtection.ExecuteReadWrite);
// GET THREAD HANDLE WITH PROPER ACCESS RIGHTS
// I FILTER THE THREADS LIKE THIS BECAUSE FROM
// EXPERIENCE SOME THREADS WITH TimeCritical PRIORITY
// ETC WILL CAUSE SOME WONKY CRASHES
var usableThreads = TargetProcess.Threads.Cast <ProcessThread>().Where(
x => x.ThreadState == System.Diagnostics.ThreadState.Wait && x.WaitReason == ThreadWaitReason.UserRequest);
ProcessThread targetThread = usableThreads.ElementAt(NTM.RandomEngine.Next(usableThreads.Count()));
var threadHandle = targetThread.GetNativeHandle((NT.ThreadAccess) 0x1FFFFF);
// ELEVATE HANDLE VIA DRIVER EXPLOIT
if (Options.ElevateHandle)
{
ElevateHandle.Elevate(threadHandle, 0x1FFFFF);
}
Log.LogInfo($"Thread {targetThread.Id} - {targetThread.ThreadState} - {targetThread.PriorityLevel} - {targetThread.CurrentPriority}");
// INITIALISE THREAD CONTEXT STRUCT
NT.CONTEXT64 ctx = new NT.CONTEXT64()
{
ContextFlags = NT.CONTEXT_FLAGS.CONTEXT_FULL
};
// SUSPEND THE THREAD SO WE CAN MODIFY REGISTERS
if (NT.SuspendThread(threadHandle) == uint.MaxValue)
{
Log.LogError($"Failed to suspend thread - {Marshal.GetLastWin32Error().ToString("x2")}");
}
// GET CONTEXT
if (!NT.GetThreadContext(threadHandle, ref ctx))
{
throw new Win32Exception("GetThreadContext");
}
// ALLOCATE 8 BYTES ON STACK
ctx.Rsp -= sizeof(ulong);
// 'RET' WILL CALL POP AND JUMP TO THAT VALUE
// SO WE WRITE OLD INSTRUCTION POINTER TO THE STACK SO WE CAN RETURN
// SO DONT F**K UP THE STACK
// F*****G RETARD
TargetProcess.WriteRawMemory(BitConverter.GetBytes(ctx.Rip), ctx.Rsp);
Log.LogInfo($"{ctx.Rip.ToString("x2")} -> {remoteShellcodePointer.ToString("x2")}");
// OVERWRITE INSTRUCTION POINTER
ctx.Rip = remoteShellcodePointer;
// SET THREAD CONTEXT TO APPLY CHANGES
if (!NT.SetThreadContext(threadHandle, ref ctx))
{
throw new Win32Exception("SetThreadContext");
}
// RESUME THREAD
Log.LogVariable("Resumed?", NT.ResumeThread(threadHandle));
//if ( == uint.MaxValue/*-1*/)
// Log.LogError($"Failed to resume thread - {Marshal.GetLastWin32Error().ToString("x2")}");
// CLOSE THREAD HANDLE
NT.CloseHandle(threadHandle);
// WAIT FOR MODULE TO LOAD FULLY BEFORE FREEING SHELLCODE
// GHETTO SLEEP
Thread.Sleep(1000);
// MEMORY LEAKS ARE BAD
TargetProcess.FreeMemory(remoteShellcodePointer);
break;
#endregion
}
}
public bool InjectImage(string imagePath)
{
Log.LogGeneral($"Injecting {imagePath} -> {TargetProcess.ProcessName}_{TargetProcess.Id}");
// GET MODULE NAME FOR LATER USE
string moduleName = Path.GetFileName(imagePath);
// GET LOAD LIBRARY POINTER
ulong loadLibraryPointer = NTM.GetModuleFunction("kernel32.dll", "LoadLibraryA");
// ALLOCATE IMAGE PATH IN TARGET PROCESS
var rawImagePath = Encoding.Default.GetBytes(imagePath);
ulong allocatedImagePath = TargetProcess.AllocateAndWrite(rawImagePath, NT.AllocationType.Commit | NT.AllocationType.Reserve, NT.MemoryProtection.ReadWrite);
ulong threadHandle = 0;
ulong moduleHandle = 0;
bool injectionFailed = false;
switch (TypeOfExecution)
{
#region Create Thread
case ExecutionType.CreateThread:
// CREATE A THREAD TO REMOTELY CALL LOADLIBRARY
TargetProcess.CreateAndWaitForThread(loadLibraryPointer, allocatedImagePath, out threadHandle);
// GET MODULE HANDLE FOR LATER USE
moduleHandle = TargetProcess.GetModuleByName(moduleName);
break;
#endregion
#region Hijack Thread
case ExecutionType.HijackThread:
byte[] shellcode = ShellcodeGenerator.CallLoadLibrary(allocatedImagePath, loadLibraryPointer);
// ALLOCATE AND WRITE SHELLCODE TO TARGET
ulong remoteShellcodePointer = TargetProcess.AllocateAndWrite(shellcode, NT.AllocationType.Commit | NT.AllocationType.Reserve, NT.MemoryProtection.ExecuteReadWrite);
// GET THREAD HANDLE WITH PROPER ACCESS RIGHTS
var usableThreads = TargetProcess.Threads.Cast <ProcessThread>().Where(
x => x.ThreadState == System.Diagnostics.ThreadState.Wait && x.WaitReason == ThreadWaitReason.UserRequest);
ProcessThread targetThread = usableThreads.ElementAt(NTM.RandomEngine.Next(usableThreads.Count()));
threadHandle = targetThread.GetNativeHandle((NT.ThreadAccess) 0x1FFFFF);
// ELEVATE HANDLE VIA DRIVER EXPLOIT
if (Options.ElevateHandle)
{
ElevateHandle.Elevate(threadHandle, 0x1FFFFF);
}
Log.LogInfo($"Thread {targetThread.Id} - {targetThread.ThreadState} - {/*targetThread.WaitReason} - {targetThread.PriorityLevel} - {*/targetThread.CurrentPriority}");
// INITIALISE THREAD CONTEXT STRUCT
NT.CONTEXT64 ctx = new NT.CONTEXT64()
{
ContextFlags = NT.CONTEXT_FLAGS.CONTEXT_FULL
};
// SUSPEND THE THREAD SO WE CAN MODIFY REGISTERS
if (NT.SuspendThread(threadHandle) == uint.MaxValue /*-1*/)
{
Log.LogError($"Failed to suspend thread - {Marshal.GetLastWin32Error().ToString("x2")}");
}
// GET CONTEXT
if (!NT.GetThreadContext(threadHandle, ref ctx))
{
throw new Win32Exception($"GetThreadContext - {Marshal.GetLastWin32Error().ToString("x2")}");
}
Log.LogInfo($"Stack Pointer: {ctx.Rsp.ToString("x2")} - {ctx.Rsp % 0x10}");
// ALLOCATE 8 BYTES ON STACK
ctx.Rsp -= sizeof(ulong);
// 'RET' WILL CALL POP AND JUMP TO THAT VALUE
// SO WE WRITE OLD INSTRUCTION POINTER TO THE STACK SO WE CAN RETURN
// SO DONT F**K UP THE STACK
// F*****G RETARD
TargetProcess.WriteRawMemory(BitConverter.GetBytes(ctx.Rip), ctx.Rsp);
// OVERWRITE INSTRUCTION POINTER
ctx.Rip = remoteShellcodePointer;
// SET THREAD CONTEXT TO APPLY CHANGES
if (!NT.SetThreadContext(threadHandle, ref ctx))
{
throw new Win32Exception($"SetThreadContext- {Marshal.GetLastWin32Error().ToString("x2")}");
}
// RESUME THREAD
if (NT.ResumeThread(threadHandle) == uint.MaxValue /*-1*/)
{
Log.LogError($"Failed to resume thread - {Marshal.GetLastWin32Error().ToString("x2")}");
}
// CLOSE THREAD HANDLE
NT.CloseHandle(threadHandle);
// WAIT FOR MODULE TO LOAD FULLY BEFORE FREEING SHELLCODE
// IF WE DONT WAIT, WE MIGHT FREE BEFORE LOADLIBRARY HAS FINISHED
// WHICH MEANS IT WILL JUMP BACK TO A NON-EXISTING MEMORY PAGE
// ALSO WE DO LIMIT HOW LONG WE WAIT, AS WE MIGHT HAVE HIJACKED
// A STUBBORN, RETARDED, SHITTY, USELESS, FILTHY NIGGER THREAD
// THAT ISN'T GOING TO DO SHIT BUT SLEEP, LEAVING US HANGING
// todo: look into stubborn threads
Stopwatch watch = Stopwatch.StartNew();
while (watch.ElapsedMilliseconds < 2500)
{
moduleHandle = TargetProcess.GetModuleByName(moduleName);
if (moduleHandle != 0)
{
break;
}
Thread.Sleep(1);
}
// IF WE HIJACKED A STUBBORN THREAD
// WE CAN'T JUST FREE THE SHELLCODE NOR
// THE ALLOCATED IMAGE PATH
// AS IT MIGHT JUST RUN IT AFTER SOME TIME
// RAISING AN EXCEPTION
if (!(injectionFailed = moduleHandle == 0))
{
TargetProcess.FreeMemory(remoteShellcodePointer);
}
//Console.ReadLine();
break;
#endregion
}
// ERASE PE HEADERS
if (Options.EraseHeaders && moduleHandle != 0)
{
TargetProcess.NukeMemoryPage(moduleHandle);
}
if (!injectionFailed)
{
TargetProcess.FreeMemory(allocatedImagePath);
}
// WE'LL HAVE TO REDO IF WE HIJACKED A STUBBORN THREAD
return(injectionFailed ?
new LoadLibraryInjection(TargetProcess, TypeOfExecution, Options).InjectImage(imagePath) :
true);
}
