Function at 0x401690
Capabilities:
Get system information on windows
Parse pe header

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x30
push ebx
push esi
push edi
mov ebx, edx
xor edi, edi
mov esi, ecx
mov dword [ebp - 0xc], ebx
mov ecx, ebx
mov dword [ebp - 4], esi
lea edx, [edi + 0x40]
call fcn.00401240
test eax, eax
je 0x40191c
mov eax, 0x5a4d
cmp word [esi], ax
jne 0x401911
mov edx, dword [esi + 0x3c]
mov ecx, ebx
add edx, 0xf8
call fcn.00401240
test eax, eax
je 0x40191c
mov ebx, dword [esi + 0x3c]
add ebx, esi
cmp dword [ebx], 0x4550
jne 0x401911
mov eax, 0x14c
cmp word [ebx + 4], ax
jne 0x401911
mov ecx, dword [ebx + 0x38]
test cl, 1
jne 0x401911
movzx edx, word [ebx + 0x14]
movzx esi, word [ebx + 6]
add edx, 0x24
test esi, esi
je 0x40173d
add edx, ebx
nop word [eax + eax]
mov eax, dword [edx + 4]
lea edx, [edx + 0x28]
test eax, eax
cmovne ecx, eax
add ecx, dword [edx - 0x28]
cmp ecx, edi
cmovbe ecx, edi
mov edi, ecx
mov ecx, dword [ebx + 0x38]
sub esi, 1
jne 0x401720
lea eax, [ebp - 0x30]
push eax
call dword [sym.imp.KERNEL32.dll_GetNativeSystemInfo]
mov edx, dword [ebp - 0x2c]
mov ecx, dword [ebx + 0x50]
call fcn.00401220
mov edx, dword [ebp - 0x2c]
mov ecx, edi
mov dword [ebp - 8], eax
call fcn.00401220
mov edi, dword [ebp - 8]
cmp edi, eax
jne 0x401911
push 0
push 4
push 0x3000
push edi
push dword [ebx + 0x34]
call fcn.00401600
mov esi, eax
mov dword [ebp - 8], esi
test esi, esi
jne 0x40179d
push eax
push 4
push 0x3000
push edi
push eax
call fcn.00401600
mov esi, eax
mov dword [ebp - 8], eax
test esi, esi
je 0x4017c1
push 0x40
push 8
call dword [sym.imp.KERNEL32.dll_GetProcessHeap]
push eax
call dword [sym.imp.KERNEL32.dll_HeapAlloc]
mov edi, eax
test edi, edi
jne 0x4017d4
push eax
push 0x8000
push eax
push esi
call fcn.00401620
push 0xe
call dword [sym.imp.KERNEL32.dll_SetLastError]
pop edi
pop esi
xor eax, eax
pop ebx
mov esp, ebp
pop ebp
ret 0x18
mov ecx, dword [ebp - 0xc]
mov dword [edi + 4], esi
movzx eax, word [ebx + 0x16]
shr eax, 0xd
and eax, 1
mov dword [edi + 0x1c], fcn.00401600
mov dword [edi + 0x14], eax
mov dword [edi + 0x20], fcn.00401620
mov dword [edi + 0x24], 0x401640
mov dword [edi + 0x28], 0x401650
mov dword [edi + 0x2c], 0x401670
mov dword [edi + 0x34], 0
mov eax, dword [ebp - 0x2c]
mov dword [edi + 0x3c], eax
mov edx, dword [ebx + 0x54]
call fcn.00401240
test eax, eax
je 0x4018cd
push 0
push 4
push 0x1000
push dword [ebx + 0x54]
push esi
call fcn.00401600
push dword [ebx + 0x54]
mov esi, eax
push dword [ebp - 4]
push esi
call fcn.0043b8a0
mov eax, dword [ebp - 4]
add esp, 0xc
mov edx, dword [ebp - 0xc]
mov ecx, dword [ebp - 4]
mov eax, dword [eax + 0x3c]
add eax, esi
mov esi, dword [ebp - 8]
mov dword [edi], eax
push edi
mov dword [eax + 0x34], esi
call fcn.00401260
test eax, eax
jne 0x4018cd
mov eax, dword [edi]
mov edx, dword [eax + 0x34]
sub edx, dword [ebx + 0x34]
je 0x40187d
mov ecx, edi
call fcn.004013f0
jmp 0x401882
mov eax, 1
mov ecx, edi
mov dword [edi + 0x18], eax
call fcn.004014b0
test eax, eax
je 0x4018cd
mov ecx, edi
call fcn.00401300
test eax, eax
jne 0x4018cd
mov ecx, edi
call fcn.004013b0
test eax, eax
je 0x4018cd
mov eax, dword [edi]
mov eax, dword [eax + 0x28]
test eax, eax
je 0x4018ff
add eax, esi
cmp dword [edi + 0x14], 0
je 0x4018f1
push 0
push 1
push esi
call eax
test eax, eax
jne 0x4018df
push 0x45a
call dword [sym.imp.KERNEL32.dll_SetLastError]
mov ecx, edi
call fcn.00401a80
pop edi
pop esi
xor eax, eax
pop ebx
mov esp, ebp
pop ebp
ret 0x18
mov dword [edi + 0x10], 1
mov eax, edi
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 0x18
mov dword [edi + 0x38], eax
mov eax, edi
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 0x18
mov dword [edi + 0x38], 0
mov eax, edi
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 0x18
push 0xc1
call dword [sym.imp.KERNEL32.dll_SetLastError]
pop edi
pop esi
xor eax, eax
pop ebx
mov esp, ebp
pop ebp
ret 0x18