Function at 0x404220
Capabilities:
Check os version
Get system information on windows

Disassembly:
push ebx
mov ebx, esp
sub esp, 8
and esp, 0xfffffff0
add esp, 4
push ebp
mov ebp, dword [ebx + 4]
mov dword [esp + 4], ebp
mov ebp, esp
sub esp, 0x198
push esi
push edi
push 0x118
xorps xmm0, xmm0
mov dword [ebp - 0x50], 0
lea eax, [ebp - 0x18c]
movaps xmmword [ebp - 0x70], xmm0
push 0
push eax
movaps xmmword [ebp - 0x60], xmm0
call fcn.00414ff0
add esp, 0xc
mov dword [ebp - 0x190], 0x11c
lea eax, [ebp - 0x190]
push eax
call dword [sym.imp.KERNEL32.dll_GetVersionExW]
test eax, eax
jne 0x40428a
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
sub esp, 0x18
mov ecx, esp
push 0x43644c
call fcn.00412e40
lea ecx, [ebp - 0x1c]
call fcn.00402b70
mov esi, eax
add esp, 0x18
cmp dword [esi + 0x14], 0x10
jb 0x4042ae
mov esi, dword [esi]
sub esp, 0x18
mov ecx, esp
push 0x435d8c
call fcn.00412e40
lea ecx, [ebp - 0x34]
call fcn.00402b70
add esp, 0x18
cmp dword [eax + 0x14], 0x10
jb 0x4042d0
mov eax, dword [eax]
push esi
push eax
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
push eax
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
mov edx, dword [ebp - 0x20]
mov esi, eax
cmp edx, 0x10
jb 0x404315
mov ecx, dword [ebp - 0x34]
inc edx
mov eax, ecx
cmp edx, 0x1000
jb 0x40430b
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x404710
push edx
push ecx
call fcn.004142b0
add esp, 8
mov edx, dword [ebp - 8]
mov dword [ebp - 0x24], 0
mov dword [ebp - 0x20], 0xf
mov byte [ebp - 0x34], 0
cmp edx, 0x10
jb 0x40435b
mov ecx, dword [ebp - 0x1c]
inc edx
mov eax, ecx
cmp edx, 0x1000
jb 0x404351
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x404710
push edx
push ecx
call fcn.004142b0
add esp, 8
mov dword [ebp - 0xc], 0
lea eax, [ebp - 0x70]
mov dword [ebp - 8], 0xf
mov byte [ebp - 0x1c], 0
push eax
test esi, esi
je 0x404379
call esi
jmp 0x40437f
call dword [sym.imp.KERNEL32.dll_GetSystemInfo]
mov eax, dword [ebp - 0x18c]
cmp eax, 0xa
jne 0x4043af
cmp dword [ebp - 0x188], 0
jne 0x404702
xor eax, eax
cmp byte [ebp - 0x76], 1
setne al
inc eax
mov dword [0x435920], eax
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
cmp eax, 6
jne 0x404684
mov eax, dword [ebp - 0x188]
cmp eax, 3
jne 0x4043dd
xor eax, eax
cmp byte [ebp - 0x76], 1
setne al
add eax, 3
mov dword [0x435920], eax
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
cmp eax, 2
jne 0x404645
sub esp, 0x18
cmp byte [ebp - 0x76], 1
jne 0x4044aa
mov esi, esp
mov dword [0x435920], 1
sub esp, 0x18
mov ecx, esp
push 0x43605c
call fcn.00412e40
mov ecx, esi
call fcn.00402b70
mov esi, esp
sub esp, 0x18
mov ecx, esp
push 0x436284
call fcn.00412e40
mov ecx, esi
call fcn.00402b70
add esp, 0x18
lea ecx, [ebp - 0x1c]
mov edx, 0x80000002
call fcn.00402c80
add esp, 0x30
cmp dword [eax + 0x14], 0x10
jb 0x404448
mov eax, dword [eax]
push eax
call fcn.00418845
mov edx, dword [ebp - 8]
add esp, 4
cmp eax, 0x55f0
setge al
mov byte [ebp - 1], al
cmp edx, 0x10
jb 0x404493
mov ecx, dword [ebp - 0x1c]
inc edx
mov eax, ecx
cmp edx, 0x1000
jb 0x404486
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x404715
push edx
push ecx
call fcn.004142b0
mov al, byte [ebp - 1]
add esp, 8
test al, al
je 0x404634
mov dword [0x435920], 0x12
jmp 0x404634
mov edi, esp
mov dword [0x435920], 4
sub esp, 0x18
mov esi, esp
sub esp, 0x18
mov ecx, esp
push 0x43635c
call fcn.00412e40
mov ecx, esi
call fcn.00402b70
mov esi, esp
sub esp, 0x18
mov ecx, esp
push 0x436284
call fcn.00412e40
mov ecx, esi
call fcn.00402b70
add esp, 0x18
mov edx, 0x80000002
mov ecx, edi
call fcn.00402c80
add esp, 0x18
mov esi, esp
sub esp, 0x18
mov ecx, esp
push 0x435c24
call fcn.00412e40
mov ecx, esi
call fcn.00402b70
add esp, 0x18
call fcn.00404020
mov ecx, dword [0x435920]
test eax, eax
mov edx, 0x10
cmovg ecx, edx
add esp, 0x18
mov edi, esp
mov dword [0x435920], ecx
sub esp, 0x18
mov esi, esp
sub esp, 0x18
mov ecx, esp
push 0x43635c
call fcn.00412e40
mov ecx, esi
call fcn.00402b70
mov esi, esp
sub esp, 0x18
mov ecx, esp
push 0x436284
call fcn.00412e40
mov ecx, esi
call fcn.00402b70
add esp, 0x18
mov edx, 0x80000002
mov ecx, edi
call fcn.00402c80
add esp, 0x18
mov esi, esp
sub esp, 0x18
mov ecx, esp
push 0x435aa4
call fcn.00412e40
mov ecx, esi
call fcn.00402b70
add esp, 0x18
call fcn.00404020
mov ecx, dword [0x435920]
test eax, eax
mov edx, 0x11
cmovg ecx, edx
add esp, 0x18
mov edi, esp
mov dword [0x435920], ecx
sub esp, 0x18
mov esi, esp
sub esp, 0x18
mov ecx, esp
push 0x43635c
call fcn.00412e40
mov ecx, esi
call fcn.00402b70
mov esi, esp
sub esp, 0x18
mov ecx, esp
push 0x436284
call fcn.00412e40
mov ecx, esi
call fcn.00402b70
add esp, 0x18
mov edx, 0x80000002
mov ecx, edi
call fcn.00402c80
add esp, 0x18
mov esi, esp
sub esp, 0x18
mov ecx, esp
push 0x435a74
call fcn.00412e40
mov ecx, esi
call fcn.00402b70
add esp, 0x18
call fcn.00404020
mov ecx, dword [0x435920]
add esp, 0x30
test eax, eax
mov edx, 2
cmovg ecx, edx
mov dword [0x435920], ecx
mov eax, dword [ebp - 0x18c]
cmp eax, 6
jne 0x404684
mov eax, dword [ebp - 0x188]
test eax, eax
jne 0x404661
cmp byte [ebp - 0x76], 1
setne al
add eax, 7
mov dword [0x435920], eax
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
cmp eax, 1
jne 0x404702
xor eax, eax
cmp byte [ebp - 0x76], 1
setne al
add eax, 9
mov dword [0x435920], eax
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
cmp eax, 5
jne 0x404702
mov ecx, dword [ebp - 0x188]
cmp ecx, 2
jne 0x4046d1
cmp byte [ebp - 0x76], 1
jne 0x4046b9
cmp word [ebp - 0x70], 9
jne 0x4046b9
mov dword [0x435920], 0xc
mov eax, dword [0x435920]
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
mov dword [0x435920], 0xd
mov eax, dword [0x435920]
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
cmp ecx, 1
jne 0x4046ee
mov dword [0x435920], 0xe
mov eax, dword [0x435920]
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
mov eax, dword [0x435920]
test ecx, ecx
mov edx, 0xf
cmove eax, edx
mov dword [0x435920], eax
mov eax, dword [0x435920]
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
call fcn.00418a24
call fcn.00418a24
int3