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InjectAhkDll.ahk
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InjectAhkDll.ahk
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/*
notepad := A_WinDir "\notepad.exe"
if A_Is64bitOS && A_PtrSize = 4
notepad := A_WinDir "\SysWOW64\notepad.exe"
Run % notepad, , , PID
WinWaitActive % "ahk_pid" PID
Clipboard := ""
rThread := InjectAhkDll(PID, A_AhkDir "\AutoHotkey.dll", "Clipboard := DllCall(""GetModuleHandle"", ""Ptr"", 0, ""Ptr"")")
Sleep 500
MsgBox % "ModuleHandle of Notepad Process: " Clipboard
OnExit(Func("Close").Bind(PID))
ExitApp
Close(PID) {
Process Close, % PID
}
*/
InjectAhkDll(PID, dll := "AutoHotkey.dll", script := 0) {
static PROCESS_ALL_ACCESS := 0x1F0FFF, MEM_COMMIT := 0x1000, MEM_RELEASE := 0x8000, PAGE_EXECUTE_READWRITE := 64
, hKernel32 := DllCall("LoadLibrary", "Str", "kernel32.dll", "Ptr")
, LoadLibraryA := DllCall("GetProcAddress", "Ptr", hKernel32, "AStr", "LoadLibraryA", "Ptr")
, FreeLibrary := DllCall("GetProcAddress", "Ptr", hKernel32, "AStr", "FreeLibrary", "Ptr")
, Module32First := "Module32First" (A_IsUnicode ? "W" : "")
, Module32Next := "Module32Next" (A_IsUnicode ? "W" : "")
, base := {__Call: "InjectAhkDll", __Delete: "InjectAhkDll"}
static TH32CS_SNAPMODULE := 0x00000008, INVALID_HANDLE_VALUE := -1
, MAX_PATH := 260, MAX_MODULE_NAME32 := 255, ModuleName := "", init := VarSetCapacity(ModuleName, MAX_PATH * (A_IsUnicode ? 2 : 1))
, _MODULEENTRY32 := Format("
(
DWORD dwSize;
DWORD th32ModuleID;
DWORD th32ProcessID;
DWORD GlblcntUsage;
DWORD ProccntUsage;
BYTE *modBaseAddr;
DWORD modBaseSize;
HMODULE hModule;
TCHAR szModule[{1:}];
TCHAR szExePath[{2:}];
)", MAX_MODULE_NAME32 + 1, MAX_PATH)
if IsObject(PID)
{
if (dll != "Exec" && script)
return DllCall("MessageBox", "Ptr", 0, "Str", "Only Exec method can be used here!", "Str", "Error", "UInt", 0)
hProc := DllCall("OpenProcess", "UInt", PROCESS_ALL_ACCESS, "Int", 0, "UInt", PID.PID, "Ptr")
if !hProc
return DllCall("MessageBox", "Ptr", 0, "Str", "Could not open process for PID: " PID.PID, "Str", "Error", "UInt", 0)
if !script ; Free Library in remote process (object is being deleted)
{
; Terminate the thread in ahkdll
hThread := DllCall("CreateRemoteThread", "Ptr", hProc, "Ptr", 0, "Ptr", 0, "Ptr", PID.ahkTerminate, "Ptr", 0, "UInt", 0, "Ptr", 0,"Ptr")
DllCall("WaitForSingleObject", "Ptr", hThread, "UInt", 0xFFFFFFFF)
, DllCall("CloseHandle", "Ptr", hThread)
; Free library in remote process
hThread := DllCall("CreateRemoteThread", "Ptr", hProc, "UInt", 0, "UInt", 0, "Ptr", FreeLibrary, "Ptr", PID.hModule, "UInt", 0, "UInt", 0, "Ptr")
DllCall("WaitForSingleObject", "Ptr", hThread, "UInt", 0xFFFFFFFF)
, DllCall("CloseHandle", "Ptr", hThread)
, DllCall("CloseHandle", "Ptr", hProc)
return
}
nScriptLength := VarSetCapacity(nScript, (StrLen(script) + 1) * (A_IsUnicode ? 2 : 1), 0)
, StrPut(script, &nScript)
; Reserve memory in remote process where our script will be saved
if !pBufferRemote := DllCall("VirtualAllocEx", "Ptr", hProc, "Ptr", 0, "Ptr", nScriptLength, "UInt", MEM_COMMIT, "UInt", PAGE_EXECUTE_READWRITE, "Ptr")
return (DllCall("MessageBox", "Ptr", 0, "Str", "Could not reserve memory for process.", "Str", "Error", "UInt", 0)
, DllCall("CloseHandle", "Ptr", hProc))
; Write script to remote process memory
DllCall("WriteProcessMemory", "Ptr", hProc, "Ptr", pBufferRemote, "Ptr", &nScript, "Ptr", nScriptLength, "Ptr", 0)
; Start execution of code
hThread := DllCall("CreateRemoteThread", "Ptr", hProc, "Ptr", 0, "Ptr", 0, "Ptr", PID.ahkExec, "Ptr", pBufferRemote, "UInt", 0, "Ptr", 0,"Ptr")
if !hThread
{
DllCall("VirtualFreeEx", "Ptr", hProc, "Ptr", pBufferRemote, "Ptr", nScriptLength, "UInt", MEM_RELEASE)
, DllCall("CloseHandle", "Ptr", hProc)
return DllCall("MessageBox", "Ptr", 0, "Str", "Could not execute script in remote process.", "Str", "Error", "UInt", 0)
}
; Wait for thread to finish
DllCall("WaitForSingleObject", "Ptr", hThread, "UInt", 0xFFFFFFFF)
; Get Exit code returned by ahkExec (1 = script could be executed / 0 = script could not be executed)
DllCall("GetExitCodeThread", "Ptr", hThread, "UInt*", lpExitCode)
if !lpExitCode
return DllCall("MessageBox", "Ptr", 0, "Str", "Could not execute script in remote process.", "Str", "Error", "UInt", 0)
DllCall("CloseHandle", "Ptr", hThread)
, DllCall("VirtualFreeEx", "Ptr", hProc, "Ptr", pBufferRemote, "Ptr", nScriptLength, "UInt", MEM_RELEASE)
, DllCall("CloseHandle", "Ptr", hProc)
return
}
else if !hDll := DllCall("LoadLibrary", "Str", dll, "Ptr")
return (DllCall("MessageBox", "Ptr", 0, "Str", "Could not find " dll " library.", "Str", "Error", "UInt", 0)
, DllCall("CloseHandle", "Ptr", hProc))
else
{
hProc := DllCall("OpenProcess", "UInt", PROCESS_ALL_ACCESS, "Int", 0, "UInt", DllCall("GetCurrentProcessId"), "Ptr")
DllCall("GetModuleFileName", "Ptr", hDll, "Ptr", &ModuleName, "UInt", MAX_PATH)
DllCall("CloseHandle", "Ptr", hProc)
}
; Open Process to PID
hProc := DllCall("OpenProcess", "UInt", PROCESS_ALL_ACCESS, "Int", 0, "UInt", PID, "Ptr")
if !hProc
return DllCall("MessageBox", "Ptr", 0, "Str", "Could not open process for PID: " PID, "Str", "Error", "UInt", 0)
; Reserve some memory and write dll path (ANSI)
nDirLength := VarSetCapacity(nDir, StrLen(dll) + 1, 0)
, StrPut(dll, &nDir, "CP0")
; Reserve memory in remote process
if !pBufferRemote := DllCall("VirtualAllocEx", "Ptr", hProc, "Ptr", 0, "Ptr", nDirLength, "UInt", MEM_COMMIT, "UInt", PAGE_EXECUTE_READWRITE, "Ptr")
return (DllCall("MessageBox", "Ptr", 0, "Str", "Could not reserve memory for process.", "Str", "Error", "UInt", 0)
, DllCall("CloseHandle", "Ptr", hProc))
; Write dll path to remote process memory
DllCall("WriteProcessMemory", "Ptr", hProc, "Ptr", pBufferRemote, "Ptr", &nDir, "Ptr", nDirLength, "Ptr", 0)
; Start new thread loading our dll
hThread := DllCall("CreateRemoteThread", "Ptr", hProc, "Ptr", 0, "Ptr", 0, "Ptr", LoadLibraryA, "Ptr", pBufferRemote, "UInt", 0, "Ptr", 0, "Ptr")
if !hThread
{
DllCall("VirtualFreeEx", "Ptr", hProc, "Ptr", pBufferRemote, "Ptr", nDirLength, "UInt", MEM_RELEASE)
, DllCall("CloseHandle", "Ptr", hProc)
return DllCall("MessageBox", "Ptr", 0, "Str", "Could not load " dll " in remote process.", "Str", "Error", "UInt", 0)
}
; Wait for thread to finish
DllCall("WaitForSingleObject", "Ptr", hThread, "UInt", 0xFFFFFFFF)
; Get Exit code returned by thread (HMODULE for our dll)
DllCall("GetExitCodeThread", "Ptr", hThread, "UInt*", hModule)
; Close Thread
DllCall("CloseHandle", "Ptr", hThread)
if (A_PtrSize = 8) ; use different method to retrieve base address because GetExitCodeThread returns DWORD only
{
hModule := 0, me32 := Struct(_MODULEENTRY32)
; Take a snapshot of all modules in the specified process.
hModuleSnap := DllCall("CreateToolhelp32Snapshot", "UInt", TH32CS_SNAPMODULE, "UInt", PID, "Ptr")
if (hModuleSnap != INVALID_HANDLE_VALUE)
{
; reset hModule and set the size of the structure before using it.
me32.dwSize := sizeof(_MODULEENTRY32)
; Retrieve information about the first module. Exit if unsuccessful
if !DllCall(Module32First, "Ptr", hModuleSnap, "Ptr", me32[])
{
; Free memory used for passing dll path to remote thread
DllCall("VirtualFreeEx", "Ptr", hProc, "Ptr", pBufferRemote, "Ptr", nDirLength, "UInt", MEM_RELEASE)
, DllCall("CloseHandle", "Ptr", hModuleSnap) ; Must clean up the snapshot object!
return false
}
; Now walk the module list of the process,and display information about each module
while(A_Index = 1 || DllCall(Module32Next, "Ptr", hModuleSnap, "Ptr", me32[]))
{
if (StrGet(me32.szExePath[""]) = dll)
{
hModule := me32.modBaseAddr["",""]
break
}
}
DllCall("CloseHandle","Ptr",hModuleSnap) ; clean up
}
}
hDll := DllCall("LoadLibrary", "Str", dll, "Ptr")
; Calculate pointer to ahkdll and ahkExec functions
ahktextdll := hModule + DllCall("GetProcAddress", "Ptr", hDll, "AStr", "ahktextdll", "Ptr") - hDll
ahkExec := hModule + DllCall("GetProcAddress", "Ptr", hDll, "AStr", "ahkExec", "Ptr") - hDll
ahkTerminate := hModule + DllCall("GetProcAddress", "Ptr", hDll, "AStr", "ahkTerminate", "Ptr") - hDll
if script
{
nScriptLength := VarSetCapacity(nScript, (StrLen(script) + 1) * (A_IsUnicode ? 2 : 1), 0)
, StrPut(script, &nScript)
; Reserve memory in remote process where our script will be saved
if !pBufferScript := DllCall("VirtualAllocEx", "Ptr", hProc, "Ptr", 0, "Ptr", nScriptLength, "UInt", MEM_COMMIT, "UInt", PAGE_EXECUTE_READWRITE, "Ptr")
return (DllCall("MessageBox", "Ptr", 0, "Str", "Could not reserve memory for process.", "Str", "Error", "UInt", 0)
, DllCall("CloseHandle", "Ptr", hProc))
; Write script to remote process memory
DllCall("WriteProcessMemory", "Ptr", hProc, "Ptr", pBufferScript, "Ptr", &nScript, "Ptr", nScriptLength, "Ptr", 0)
}
else
pBufferScript := 0
; Run ahkdll function in remote thread
hThread := DllCall("CreateRemoteThread", "Ptr", hProc, "Ptr", 0, "Ptr", 0, "Ptr", ahktextdll, "Ptr", pBufferScript, "Ptr", 0, "UInt", 0, "Ptr")
if !hThread ; could not start ahkdll in remote process
{
; Free memory used for passing dll path to remote thread
DllCall("VirtualFreeEx", "Ptr", hProc, "Ptr", pBufferRemote, "Ptr", nDirLength, "UInt", MEM_RELEASE)
, DllCall("CloseHandle", "Ptr", hProc)
return DllCall("MessageBox", "Ptr", 0, "Str", "Could not start ahkdll in remote process", "Str", "Error", "UInt", 0)
}
DllCall("WaitForSingleObject", "Ptr", hThread, "UInt", 0xFFFFFFFF)
DllCall("GetExitCodeThread", "Ptr", hThread, "UInt*", lpExitCode)
; Release memory and handles
DllCall("VirtualFreeEx", "Ptr", hProc, "Ptr", pBufferRemote, "Ptr", nDirLength, "UInt", MEM_RELEASE)
, DllCall("CloseHandle", "Ptr", hThread)
, DllCall("CloseHandle", "Ptr", hProc)
if !lpExitCode ; thread could not be created.
return DllCall("MessageBox", "Ptr", 0, "Str", "Could not create a thread in remote process", "Str", "Error", "UInt", 0)
return {PID: PID, hModule: hModule, ahkExec: ahkExec, ahkTerminate: ahkTerminate, base: base}
}