pydebugger

from ctypes import *

WORD = c_ushort
DWORD = c_ulong
LPBYTE =  POINTER(c_ubyte)
LPTSTR = POINTER(c_char)
HANDLE = c_void_p

DEBUG_PROCESS = 0x00000001
CREATE_NEW_CONSOLE = 0x00000010

class STARTUPINFO(Structure):
    _fields_ = [
        ("cb", DWORD),
        ("lpReserved", LPTSTR),
        ("lpDesktop", LPTSTR),
        ("lpTitle", LPTSTR),
        ("dwX", DWORD),
        ("dwY", DWORD),
        ("dwXSize", DWORD),
        ("dwYSize", DWORD),
        ("dwXCountChars", DWORD),
        ("dwYCountChars", DWORD),
        ("dwFillAttribute", DWORD),
        ("dwFlags", DWORD),
        ("wShowWindow", WORD),
        (‘cbReserved2‘, WORD),
        (‘lpReserved2‘, LPBYTE),
        (‘hStdInput‘, HANDLE),
        (‘hStdOutput‘, HANDLE),
        (‘hStdError‘, HANDLE),
    ]

class PROCESS_INFORMATION(Structure):
    _fields_ = [
        ("hProcess", HANDLE),
        (‘hThread‘, HANDLE),
        (‘dwProcessId‘, DWORD),
        (‘dwThreadId‘, DWORD),
    ]

from ctypes import *
from my_debugger_defines import *

kernel32 = windll.kernel32

class debugger():
    def __init__(self):
        pass

    def load(self, path_to_exe):
        creation_flags = DEBUG_PROCESS

        startupinfo = STARTUPINFO()
        process_information = PROCESS_INFORMATION()

        startupinfo.dwFlags = 0x1
        startupinfo.wShowWindow = 0x0
        startupinfo.cb = sizeof(startupinfo)

        if kernel32.CreateProcessA(path_to_exe,
            None,
            None,
            None,
            None,
            creation_flags,
            None,
            None,
            byref(startupinfo),
            byref(process_information)):
            print "[*]we have successfully launched the process!"
            print "[*]PID:%d" % process_information.dwProcessId
        else:
            print "[*]Error: 0x%08x." % kernel32.GetLastError()

import my_debugger

debugger = my_debugger.debugger()
debugger.load("C:\Windows\WinSxS\wow64_microsoft-windows-calc_31bf3856ad364e35_10.0.10586.0_none_409843e5f973ed29\calc.exe")