Function at 0x452bb1
Capabilities:
Check os version
Get system information on windows

Disassembly:
push ebp
mov ebp, esp
sub esp, 0xe8
push ebx
mov ebx, ecx
and dword [ebx + 4], 0
push esi
push edi
lea esi, [ebx + 8]
mov dword [ebp - 4], ebx
call fcn.00453a79
mov edi, 0x9c
push edi
lea eax, [ebp - 0xa4]
push 0
push eax
call fcn.0043cdc0
add esp, 0xc
lea eax, [ebp - 0xa4]
push eax
mov dword [ebp - 0xa4], edi
call dword [sym.imp.KERNEL32.dll_GetVersionExA]
test eax, eax
je 0x452ff0
mov ebx, dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
push str.GetNativeSystemInfo
push str.kernel32.dll
call ebx
push eax
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
mov edx, eax
push 9
xor eax, eax
pop ecx
lea edi, [ebp - 0xc8]
rep stosd dword es:[edi], eax
lea eax, [ebp - 0xc8]
push eax
test edx, edx
je 0x452c37
call edx
jmp 0x452c3d
call dword [sym.imp.KERNEL32.dll_GetSystemInfo]
cmp dword [ebp - 0x94], 2
jne 0x452fe0
cmp dword [ebp - 0xa0], 4
jb 0x452fe0
push str.Microsoft
or edi, 0xffffffff
push esi
mov eax, edi
call fcn.00453b6f
cmp dword [ebp - 0xa0], 6
jne case.0x452d03.5
cmp dword [ebp - 0x9c], 0
jne 0x452c97
cmp byte [ebp - 0xa], 1
mov eax, edi
jne 0x452c8c
push str.Windows_Vista
jmp 0x452c91
push str.Windows_Server_2008
push esi
call fcn.00453b6f
cmp dword [ebp - 0x9c], 1
jne 0x452cba
cmp byte [ebp - 0xa], 1
mov eax, edi
jne 0x452caf
push str.Windows_7
jmp 0x452cb4
push str.Windows_Server_2008_R2
push esi
call fcn.00453b6f
push str.GetProductInfo
push str.kernel32.dll
call ebx
push eax
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
test eax, eax
je case.0x452d03.5
lea ecx, [ebp - 8]
push ecx
push 0
push 0
push dword [ebp - 0x9c]
push dword [ebp - 0xa0]
call eax
mov eax, dword [ebp - 8]
cmp eax, 0x19
ja 0x452d7a
je 0x452d73
dec eax
cmp eax, 0x11
ja case.0x452d03.5
jmp dword [eax*4 + 0x453006]
push str.Ultimate_Edition
jmp 0x452d84
push str.Home_Premium_Edition
jmp 0x452d84
push str.Home_Basic_Edition
jmp 0x452d84
push str.Enterprise_Edition
jmp 0x452d84
push str.Business_Edition
jmp 0x452d84
push str.Starter_Edition
jmp 0x452d84
push str.Cluster_Server_Edition
jmp 0x452d84
push str.Datacenter_Edition
jmp 0x452d84
push str.Datacenter_Edition__core_installation_
jmp 0x452d84
push str.Enterprise_Edition__core_installation_
jmp 0x452d84
push str.Enterprise_Edition_for_Itanium_based_Systems
jmp 0x452d84
push str.Small_Business_Server
jmp 0x452d84
push str.Standard_Edition
jmp 0x452d84
push str.Standard_Edition__core_installation_
jmp 0x452d84
push str.Web_Server_Edition
jmp 0x452d84
push str.Small_Business_Server_Premium_Edition
jmp 0x452d84
cmp eax, 0x30
jne case.0x452d03.5
push str.Professional
push esi
mov eax, edi
call fcn.00453b6f
cmp dword [ebp - 0xa0], 5
jne 0x452f2d
cmp dword [ebp - 0x9c], 2
jne 0x452ea7
push 0x59
call dword [sym.imp.USER32.dll_GetSystemMetrics]
test eax, eax
je 0x452db9
push str.Windows_Server_2003_R2_
jmp 0x452df5
test dword [ebp - 0xc], 0x2000
je 0x452dc9
push str.Windows_Storage_Server_2003
jmp 0x452df5
test dword [ebp - 0xc], 0x8000
je 0x452dd9
push str.Windows_Home_Server
jmp 0x452df5
cmp byte [ebp - 0xa], 1
jne 0x452df0
cmp word [ebp - 0xc8], 9
jne 0x452df0
push str.Windows_XP_Professional_x64_Edition
jmp 0x452df5
push str.Windows_Server_2003_
push esi
mov eax, edi
call fcn.00453b6f
cmp byte [ebp - 0xa], 1
je 0x452e9a
cmp word [ebp - 0xc8], 6
jne 0x452e2b
test byte [ebp - 0xc], 0x80
je 0x452e1e
push str.Datacenter_Edition_for_Itanium_based_Systems
jmp 0x452e92
test byte [ebp - 0xc], 2
je 0x452e9a
push str.Enterprise_Edition_for_Itanium_based_Systems
jmp 0x452e92
cmp word [ebp - 0xc8], 9
jne 0x452e58
test byte [ebp - 0xc], 0x80
je 0x452e42
push str.Datacenter_x64_Edition
jmp 0x452e92
test byte [ebp - 0xc], 2
mov eax, edi
je 0x452e51
push str.Enterprise_x64_Edition
jmp 0x452e94
push str.Standard_x64_Edition
jmp 0x452e94
mov eax, dword [ebp - 0xc]
test eax, 0x4000
je 0x452e69
push str.Compute_Cluster_Edition
jmp 0x452e92
test al, al
jns 0x452e74
push str.Datacenter_Edition
jmp 0x452e92
test al, 2
je 0x452e7f
push str.Enterprise_Edition
jmp 0x452e92
test eax, 0x400
je 0x452e8d
push str.Web_Edition
jmp 0x452e92
push str.Standard_Edition
mov eax, edi
push esi
call fcn.00453b6f
cmp dword [ebp - 0xa0], 5
jne 0x452f2d
cmp dword [ebp - 0x9c], 1
jne 0x452ee3
push str.Windows_XP
push esi
mov eax, edi
call fcn.00453b6f
test dword [ebp - 0xc], 0x200
mov eax, edi
je 0x452ecf
push str.Home_Edition
jmp 0x452ed4
push str.Professional
push esi
call fcn.00453b6f
cmp dword [ebp - 0xa0], 5
jne 0x452f2d
cmp dword [ebp - 0x9c], 0
jne 0x452f43
push str.Windows_2000
push esi
mov eax, edi
call fcn.00453b6f
cmp byte [ebp - 0xa], 1
jne 0x452f06
push str.Professional
jmp 0x452f25
test byte [ebp - 0xc], 0x80
je 0x452f13
push str.Datacenter_Server
jmp 0x452f25
test byte [ebp - 0xc], 2
je 0x452f20
push str.Advanced_Server
jmp 0x452f25
push str.Server
push esi
mov eax, edi
call fcn.00453b6f
cmp dword [ebp - 0xa0], 4
jne 0x452f43
push str.Windows_NT
push esi
mov eax, edi
call fcn.00453b6f
lea eax, [ebp - 0x90]
lea edx, [eax + 1]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x452f4c
sub eax, edx
je 0x452f73
push 0x478450
push esi
mov eax, edi
call fcn.00453b6f
lea eax, [ebp - 0x90]
push eax
push esi
mov eax, edi
call fcn.00453b6f
push 0xa
lea eax, [ebp - 0xe8]
push eax
push dword [ebp - 0x98]
call fcn.0043a958
add esp, 0xc
push str.__build
push esi
mov eax, edi
call fcn.00453b6f
lea eax, [ebp - 0xe8]
push eax
push esi
mov eax, edi
call fcn.00453b6f
push 0x47adc8
push esi
mov eax, edi
call fcn.00453b6f
cmp dword [ebp - 0xa0], 6
jb 0x452ff9
cmp word [ebp - 0xc8], 9
jne 0x452fcf
push str.__64_bit
mov eax, edi
jmp 0x452fe8
cmp word [ebp - 0xc8], 0
jne 0x452ff9
push str.__32_bit
jmp 0x452fcb
push str.Unsupported
or eax, 0xffffffff
push esi
call fcn.00453b6f
jmp 0x452ff9
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov dword [ebx + 4], eax
mov eax, dword [ebp - 4]
mov eax, dword [eax + 4]
pop edi
pop esi
pop ebx
leave
ret