Function at 0x429b00
Capabilities:
Check if file exists
Create a process with modified i/o handles and window
Create process on windows
Get file attributes

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x549ad1
mov eax, dword fs:[0]
push eax
sub esp, 0x754
mov eax, dword [0x5c5b9c]
xor eax, ebp
mov dword [ebp - 0x10], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov esi, ecx
lea ecx, [ebp - 0x6fc]
mov dword [ebp - 0x70c], esi
call fcn.0043af70
xor ebx, ebx
mov dword [ebp - 4], ebx
mov dword [ebp - 0x704], ebx
call fcn.0043d2a1
xor ecx, ecx
cmp eax, ebx
setne cl
cmp ecx, ebx
jne 0x429b66
push 0x80004005
call fcn.00401020
mov edx, dword [eax]
mov ecx, eax
mov eax, dword [edx + 0xc]
call eax
lea edi, [eax + 0x10]
mov dword [ebp - 0x700], edi
push str.CIstDrvApp::Win64PathThrough_Win64PathThrough___________________________IN._n
push 5
mov byte [ebp - 4], 1
mov dword [ebp - 0x708], ebx
call fcn.00411380
add esp, 8
cmp dword [ebp - 0x64c], ebx
je 0x429e46
push ebx
push ebx
push 0x101
lea ecx, [ebp - 0x21c]
push ecx
mov ecx, dword [esi + 0x68]
push 0x105
lea edx, [ebp - 0x428]
push edx
push 4
lea eax, [ebp - 0x18]
push eax
push ecx
call fcn.00530997
lea eax, [ebp - 0x18]
add esp, 0x24
lea edx, [eax + 2]
nop
mov cx, word [eax]
add eax, 2
cmp cx, bx
jne 0x429bd0
sub eax, edx
sar eax, 1
push eax
lea edx, [ebp - 0x18]
push edx
lea ecx, [ebp - 0x700]
call fcn.00401600
lea eax, [ebp - 0x428]
lea edx, [eax + 2]
jmp 0x429c00
mov cx, word [eax]
add eax, 2
cmp cx, bx
jne 0x429c00
sub eax, edx
sar eax, 1
push eax
lea eax, [ebp - 0x428]
push eax
lea ecx, [ebp - 0x700]
call fcn.00405ed0
lea eax, [ebp - 0x21c]
lea edx, [eax + 2]
jmp 0x429c30
mov cx, word [eax]
add eax, 2
cmp cx, bx
jne 0x429c30
sub eax, edx
sar eax, 1
push eax
lea ecx, [ebp - 0x21c]
push ecx
lea ecx, [ebp - 0x700]
call fcn.00405ed0
cmp dword [ebp - 0x63c], ebx
je 0x429c6e
push 8
push str..x64.EXE
lea ecx, [ebp - 0x700]
call fcn.00405ed0
jmp 0x429c86
cmp dword [ebp - 0x638], ebx
je 0x429c86
push str..IA64.EXE
lea ecx, [ebp - 0x700]
call fcn.00407890
mov edi, dword [ebp - 0x700]
push edi
push str.CIstDrvApp::Win64PathThrough_strWin64Exe____1_s___n
push 4
call fcn.00411380
mov ecx, dword [edi - 8]
mov eax, 1
sub eax, dword [edi - 4]
add esp, 0xc
or ecx, eax
jge 0x429cbd
push ebx
lea ecx, [ebp - 0x700]
call fcn.004012e0
mov edi, dword [ebp - 0x700]
push edi
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
cmp eax, 0xffffffff
je 0x429e46
call fcn.0043d2a1
xor ecx, ecx
cmp eax, ebx
setne cl
cmp ecx, ebx
jne 0x429ce7
push 0x80004005
call fcn.00401020
mov edx, dword [eax]
mov ecx, eax
mov eax, dword [edx + 0xc]
call eax
add eax, 0x10
mov dword [ebp - 0x704], eax
lea ecx, [ebp - 0x700]
push ecx
lea ecx, [ebp - 0x704]
mov byte [ebp - 4], 2
call fcn.004018e0
push 1
push 0x561b1c
lea ecx, [ebp - 0x704]
call fcn.00405ed0
call fcn.00445a97
mov eax, dword [eax + 4]
mov ecx, dword [eax + 0x48]
cmp ecx, ebx
jne 0x429d34
xor eax, eax
jmp 0x429d4f
mov eax, ecx
lea esi, [eax + 2]
lea esp, [esp]
mov dx, word [eax]
add eax, 2
cmp dx, bx
jne 0x429d40
sub eax, esi
sar eax, 1
push eax
push ecx
lea ecx, [ebp - 0x704]
call fcn.00405ed0
mov esi, dword [ebp - 0x704]
push esi
push str.CIstDrvApp::Win64PathThrough_strCmdLine____1_s___n
push 4
call fcn.00411380
push 0x44
lea edx, [ebp - 0x760]
push ebx
push edx
call fcn.00531b10
mov dword [ebp - 0x760], 0x44
mov eax, dword [esi - 8]
mov ecx, 1
sub ecx, dword [esi - 4]
dec eax
add esp, 0x18
or eax, ecx
jge 0x429dae
push 1
lea ecx, [ebp - 0x704]
call fcn.004012e0
mov esi, dword [ebp - 0x704]
lea eax, [ebp - 0x71c]
push eax
lea ecx, [ebp - 0x760]
push ecx
push ebx
push ebx
push 0x20
push ebx
push ebx
push ebx
push esi
push ebx
call dword [sym.imp.KERNEL32.dll_CreateProcessW]
test eax, eax
je 0x429e0a
mov edx, dword [ebp - 0x718]
mov ebx, dword [sym.imp.KERNEL32.dll_CloseHandle]
push edx
call ebx
mov eax, dword [ebp - 0x71c]
push 0xffffffffffffffff
push eax
call dword [sym.imp.KERNEL32.dll_WaitForSingleObject]
mov edx, dword [ebp - 0x71c]
lea ecx, [ebp - 0x708]
push ecx
push edx
call dword [sym.imp.KERNEL32.dll_GetExitCodeProcess]
mov eax, dword [ebp - 0x71c]
push eax
call ebx
mov ecx, dword [ebp - 0x708]
mov edx, dword [ebp - 0x70c]
mov dword [edx + 0x4c0], ecx
lea eax, [esi - 0x10]
mov dword [ebp - 0x704], 1
mov byte [ebp - 4], 1
lea ecx, [eax + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x429e46
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
mov eax, dword [edx + 4]
call eax
push str.CIstDrvApp::Win64PathThrough_Win64PathThrough___________________________OUT._n
push 5
call fcn.00411380
lea eax, [edi - 0x10]
add esp, 8
mov byte [ebp - 4], 0
lea ecx, [eax + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x429e75
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
mov eax, dword [edx + 4]
call eax
lea ecx, [ebp - 0x6fc]
mov dword [ebp - 4], 0xffffffff
call fcn.0043ae50
mov eax, dword [ebp - 0x704]
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.00530f8d
mov esp, ebp
pop ebp
ret