Function at 0x47e990
Capabilities:
Check os version
Query environment variable
Query or enumerate registry value

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x22c
mov eax, dword [0x513480]
xor eax, ebp
mov dword [ebp - 4], eax
mov eax, dword [ebp + 0xc]
mov ecx, dword [ebp + 0x18]
push ebx
mov ebx, dword [ebp + 8]
push esi
push edi
mov edi, dword [ebp + 0x14]
xor esi, esi
mov dword [ebp - 0x214], eax
mov eax, 0x513368
mov dword [ebp - 0x224], ecx
cmp ebx, dword [eax]
je 0x47e9d9
add eax, 0x14
inc esi
cmp eax, 0x513430
jl 0x47e9c5
jmp 0x47ec98
cmp esi, 0xffffffff
je 0x47ec98
xor eax, eax
mov dword [ebp - 0x220], eax
mov dword [ebp - 0x21c], eax
cmp ecx, 0xffffffff
je 0x47ea20
push str.Userenv.dll
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
mov dword [ebp - 0x21c], eax
test eax, eax
je 0x47ea1e
push str.ExpandEnvironmentStringsForUserW
push eax
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
mov dword [ebp - 0x220], eax
jmp 0x47ea20
xor eax, eax
lea edx, [esi + esi*4]
shl edx, 2
mov dword [ebp - 0x210], edx
mov ecx, dword [edx + 0x513378]
test ecx, ecx
je 0x47ea90
push dword [ebp + 0x10]
push dword [ebp - 0x214]
push ecx
test eax, eax
je 0x47ea6b
push dword [ebp - 0x224]
call eax
push dword [ebp - 0x21c]
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
pop edi
pop esi
xor eax, eax
pop ebx
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.00491e13
mov esp, ebp
pop ebp
ret
call dword [sym.imp.KERNEL32.dll_ExpandEnvironmentStringsW]
push dword [ebp - 0x21c]
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
pop edi
pop esi
xor eax, eax
pop ebx
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.00491e13
mov esp, ebp
pop ebp
ret
cmp ebx, 0x23
jne 0x47eb3e
push 0x100
lea eax, [ebp - 0x10c]
mov dword [ebp - 0x120], 0x11c
push 0
push eax
mov dword [ebp - 0x114], 0
mov dword [ebp - 0x110], 0
call fcn.00494800
mov esi, dword [sym.imp.KERNEL32.dll_VerSetConditionMask]
add esp, 0xc
xor eax, eax
mov word [ebp - 0xa], ax
mov dword [ebp - 8], eax
push 3
push 0x20
push 3
push 1
push 3
push 2
push eax
push eax
call esi
push edx
push eax
call esi
push edx
push eax
call esi
push edx
push eax
push ebx
lea eax, [ebp - 0x120]
mov dword [ebp - 0x11c], 6
xor ecx, ecx
mov dword [ebp - 0x118], 0
push eax
mov word [ebp - 0xc], cx
call dword [sym.imp.KERNEL32.dll_VerifyVersionInfoW]
mov edx, dword [ebp - 0x210]
test eax, eax
jne 0x47eb3e
mov eax, dword [str.SOFTWAREMicrosoftWindowsCurrentVersionExplorerUser_Shell_Folders]
mov dword [edx + str.SoftwareMicrosoftWindowsCurrentVersionExplorerUser_Shell_Folders], eax
mov eax, dword [str.Common_AppData]
mov dword [edx + str.AppData], eax
xor esi, esi
cmp dword [ebp + 0x1c], esi
jle 0x47ec87
lea esp, [esp]
mov dword [ebp - 0x218], 0
mov eax, edi
test edi, edi
jne 0x47eb66
mov eax, dword [edx + 0x51336c]
lea ecx, [ebp - 0x218]
push ecx
push 1
push 0
push dword [edx + 0x513370]
push eax
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExW]
mov ebx, eax
test ebx, ebx
jne 0x47ebfd
push 0x208
push eax
lea eax, [ebp - 0x20c]
push eax
call fcn.00494800
add esp, 0xc
mov dword [ebp - 0x228], 0x208
lea eax, [ebp - 0x228]
push eax
lea eax, [ebp - 0x20c]
push eax
mov eax, dword [ebp - 0x210]
push ebx
push ebx
push dword [eax + 0x513374]
push dword [ebp - 0x218]
call dword [sym.imp.ADVAPI32.dll_RegQueryValueExW]
mov ebx, eax
test ebx, ebx
jne 0x47ebf1
lea ecx, [ebp - 0x20c]
lea edx, [ecx + 2]
lea ebx, [ebx]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x47ebe0
sub ecx, edx
sar ecx, 1
jne 0x47ec26
push dword [ebp - 0x218]
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
push 0x64
call dword [sym.imp.KERNEL32.dll_Sleep]
test edi, edi
je 0x47ec15
cmp esi, 5
jbe 0x47ec15
xor eax, eax
test ebx, ebx
cmovne edi, eax
inc esi
cmp esi, dword [ebp + 0x1c]
jge 0x47ec87
mov edx, dword [ebp - 0x210]
jmp 0x47eb50
push dword [ebp + 0x10]
mov eax, dword [ebp - 0x220]
push dword [ebp - 0x214]
test eax, eax
je 0x47ec4a
lea ecx, [ebp - 0x20c]
push ecx
push dword [ebp - 0x224]
call eax
jmp 0x47ec57
lea eax, [ebp - 0x20c]
push eax
call dword [sym.imp.KERNEL32.dll_ExpandEnvironmentStringsW]
push dword [ebp - 0x218]
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
mov eax, dword [ebp - 0x21c]
test eax, eax
je 0x47ec74
push eax
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
pop edi
pop esi
xor eax, eax
pop ebx
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.00491e13
mov esp, ebp
pop ebp
ret
mov eax, dword [ebp - 0x21c]
test eax, eax
je 0x47ec98
push eax
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
mov ecx, dword [ebp - 4]
mov eax, 0x80004005
pop edi
pop esi
xor ecx, ebp
pop ebx
call fcn.00491e13
mov esp, ebp
pop ebp
ret