Function at 0x40c44b
Capabilities:
Check os version
Get system information on windows

Disassembly:
push ebp
lea ebp, [esp - 0x68]
sub esp, 0xc4
cmp dword [0x4276d8], 0
push ebx
push edi
mov ebx, 0x4276c4
jne 0x40c62c
push esi
mov esi, dword [sym.imp.KERNEL32.dll_lstrcpyA]
push 0x27
pop ecx
xor eax, eax
push 0x421028
lea edi, [ebp - 0x38]
rep stosd dword es:[edi], eax
push ebx
mov dword [ebp - 0x38], 0x9c
call esi
mov edi, dword [sym.imp.KERNEL32.dll_GetVersionExA]
lea eax, [ebp - 0x38]
push eax
call edi
test eax, eax
jne 0x40c4a7
lea eax, [ebp - 0x38]
push eax
mov dword [ebp - 0x38], 0x94
call edi
cmp dword [ebp - 0x28], 2
jne 0x40c507
cmp dword [ebp - 0x34], 4
jne 0x40c4ba
push str.winnt
jmp 0x40c532
cmp dword [ebp - 0x34], 6
jne 0x40c4da
cmp dword [ebp - 0x30], 0
jne 0x40c53f
cmp byte [ebp + 0x62], 1
jne 0x40c4d3
push str.winvista
jmp 0x40c532
push str.winlong
jmp 0x40c532
cmp dword [ebp - 0x34], 5
jne 0x40c535
cmp dword [ebp - 0x30], 0
jne 0x40c4ed
push str.win2000
jmp 0x40c532
cmp dword [ebp - 0x30], 1
jne 0x40c4fa
push str.winxp
jmp 0x40c532
cmp dword [ebp - 0x30], 2
jne 0x40c53b
push str.win2003
jmp 0x40c532
cmp dword [ebp - 0x28], 1
jne 0x40c535
cmp dword [ebp - 0x34], 4
jne 0x40c52d
cmp dword [ebp - 0x30], 0xa
jne 0x40c520
push str.win98
jmp 0x40c532
cmp dword [ebp - 0x30], 0x5a
jne 0x40c52d
push str.winme
jmp 0x40c532
push str.win95
push ebx
call esi
cmp dword [ebp - 0x34], 0
jbe 0x40c566
cmp dword [ebp - 0x30], 0
jbe 0x40c566
push str.win32
push ebx
call dword [sym.imp.KERNEL32.dll_lstrcmpA]
test eax, eax
jne 0x40c566
push dword [ebp - 0x30]
push dword [ebp - 0x34]
push str._d._d
push ebx
call dword [sym.imp.USER32.dll_wsprintfA]
add esp, 0x10
lea eax, [ebp - 0x24]
lea edx, [eax + 1]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x40c56c
sub eax, edx
mov dword [ebp + 0x64], eax
je 0x40c590
push 0x4276c0
lea eax, [ebp - 0x24]
push str.Service_Pack__d
push eax
call fcn.004136e1
add esp, 0xc
and word [ebp - 0x5c], 0
push str.Unknown
mov edi, 0x4276ac
push edi
call esi
push 0x4210a4
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
test eax, eax
mov dword [ebp + 0x64], eax
je 0x40c5cc
push str.GetNativeSystemInfo
push eax
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
test eax, eax
je 0x40c5cc
lea ecx, [ebp - 0x5c]
push ecx
call eax
jmp 0x40c5d6
lea eax, [ebp - 0x5c]
push eax
call dword [sym.imp.KERNEL32.dll_GetSystemInfo]
cmp dword [ebp + 0x64], 0
je 0x40c5e5
push dword [ebp + 0x64]
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
movzx eax, word [ebp - 0x5c]
test eax, eax
je 0x40c617
cmp eax, 6
je 0x40c610
cmp eax, 9
je 0x40c609
push eax
push 0x4210e0
push edi
call dword [sym.imp.USER32.dll_wsprintfA]
add esp, 0xc
jmp 0x40c61f
push str.amd64
jmp 0x40c61c
push str.ia64
jmp 0x40c61c
push 0x4210d8
push edi
call esi
mov dword [0x4276d8], 1
pop esi
jmp 0x40c631
mov edi, 0x4276ac
mov eax, dword [0x4276c0]
test eax, eax
jbe 0x40c64f
push eax
push ebx
push str._s_sp_d
push dword [ebp + 0x70]
call dword [sym.imp.USER32.dll_wsprintfA]
add esp, 0x10
jmp 0x40c661
push ebx
push 0x4210ec
push dword [ebp + 0x70]
call dword [sym.imp.USER32.dll_wsprintfA]
add esp, 0xc
cmp dword [ebp + 0x78], 0
je 0x40c679
push edi
push 0x4210f0
push dword [ebp + 0x78]
call dword [sym.imp.USER32.dll_wsprintfA]
add esp, 0xc
xor eax, eax
pop edi
inc eax
pop ebx
add ebp, 0x68
leave
ret