Function at 0x43f470
Capabilities:
Check if file exists
Enumerate files on windows
Enumerate files recursively
Get file attributes
Set file attributes

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x53a176
mov eax, dword fs:[0]
push eax
sub esp, 0x880
mov eax, dword [0x59024c]
xor eax, ebp
mov dword [ebp - 0x10], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov ebx, dword [ebp + 8]
test ebx, ebx
jne 0x43f4ac
xor eax, eax
jmp 0x43f7a9
cmp word [ebx], 0
je 0x43f4a5
mov ecx, ebx
lea edx, [ecx + 2]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x43f4b7
sub ecx, edx
sar ecx, 1
cmp ecx, 0x104
jge 0x43f4a5
push 0x410
lea eax, [ebp - 0x420]
push 0
push eax
call fcn.004ee2e0
add esp, 0xc
lea eax, [ebp - 0x420]
push 0x54d010
push ebx
push eax
call dword [sym.imp.SHLWAPI.dll_PathCombineW]
push ebx
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
cmp eax, 0xffffffff
je 0x43f512
test al, 1
je 0x43f512
and eax, 0xfffffffe
push eax
push ebx
call dword [sym.imp.KERNEL32.dll_SetFileAttributesW]
mov eax, 0x5c
mov dword [ebp - 0x428], 0
mov word [ebp - 0x42c], ax
lea eax, [ebp - 0x420]
mov dword [ebp - 4], 0
push eax
mov dword [ebp - 0x424], 0
call dword [sym.imp.KERNEL32.dll_lstrlenW]
mov esi, dword [sym.imp.KERNEL32.dll_FindClose]
cmp eax, 0x104
jge 0x43f755
lea eax, [ebp - 0x420]
push eax
lea eax, [ebp - 0x858]
push 0x104
push eax
call fcn.004fadc0
push eax
call fcn.004033b0
add esp, 0x10
lea eax, [ebp - 0x884]
push eax
lea eax, [ebp - 0x420]
push eax
call dword [sym.imp.KERNEL32.dll_FindFirstFileW]
mov dword [ebp - 0x428], eax
cmp eax, 0xffffffff
jne 0x43f5a6
mov dword [ebp - 0x424], 0
jmp 0x43f77b
push 0
lea eax, [ebp - 0x634]
push eax
push 0x104
lea eax, [ebp - 0x420]
push eax
call dword [sym.imp.KERNEL32.dll_GetFullPathNameW]
test eax, eax
jne 0x43f5f4
mov dword [ebp - 0x424], eax
mov eax, dword [ebp - 0x428]
test eax, eax
je 0x43f5e7
cmp eax, 0xffffffff
je 0x43f5e7
push eax
call esi
mov dword [ebp - 0x428], 0
push 0x7b
call dword [sym.imp.KERNEL32.dll_SetLastError]
jmp 0x43f755
lea eax, [ebp - 0x634]
push 0x5c
push eax
call fcn.004efdcb
mov esi, eax
lea eax, [ebp - 0x634]
push 0x2f
push eax
call fcn.004efdcb
mov ecx, eax
add esp, 0x10
test ecx, ecx
jne 0x43f625
test esi, esi
je 0x43f640
lea ecx, [ebp - 0x634]
test esi, esi
lea eax, [ebp - 0x634]
cmovne eax, esi
cmp ecx, eax
jb 0x43f63b
xor eax, eax
mov word [ecx], ax
jmp 0x43f640
xor ecx, ecx
mov word [eax], cx
mov eax, 1
mov dword [ebp - 0x424], eax
mov edi, dword [sym.imp.KERNEL32.dll_FindNextFileW]
test eax, eax
je 0x43f6ae
mov eax, dword [ebp - 0x884]
shr eax, 4
and eax, 1
je 0x43f6ae
cmp word [ebp - 0x858], 0x2e
jne 0x43f6ae
mov ax, word [ebp - 0x856]
test ax, ax
je 0x43f689
cmp ax, 0x2e
jne 0x43f6ae
cmp word [ebp - 0x854], 0
jne 0x43f6ae
mov eax, dword [ebp - 0x428]
test eax, eax
je 0x43f597
lea ecx, [ebp - 0x884]
push ecx
push eax
call edi
mov dword [ebp - 0x424], eax
mov edi, eax
jmp 0x43f747
lea eax, [ebp - 0x888]
push eax
lea ecx, [ebp - 0x884]
call fcn.0043b820
cmp dword [ebp - 0x424], 0
mov byte [ebp - 4], 1
je 0x43f6e9
mov eax, dword [ebp - 0x884]
shr eax, 4
and eax, 1
je 0x43f6e9
mov esi, dword [ebp - 0x888]
push esi
call fcn.0043f470
jmp 0x43f6f5
mov esi, dword [ebp - 0x888]
push esi
call fcn.0043f420
mov eax, dword [ebp - 0x428]
add esp, 4
test eax, eax
jne 0x43f706
xor edi, edi
jmp 0x43f725
cmp dword [ebp - 0x424], 0
jne 0x43f713
xor edi, edi
jmp 0x43f725
lea ecx, [ebp - 0x884]
push ecx
push eax
call edi
mov edi, eax
mov dword [ebp - 0x424], edi
mov byte [ebp - 4], 0
add esi, 0xfffffff0
or ecx, 0xffffffff
lock xadd dword [esi + 0xc], ecx
dec ecx
test ecx, ecx
jg 0x43f741
mov ecx, dword [esi]
push esi
mov eax, dword [ecx]
call dword [eax + 4]
mov eax, dword [ebp - 0x424]
test edi, edi
jne 0x43f64b
mov esi, dword [sym.imp.KERNEL32.dll_FindClose]
mov eax, dword [ebp - 0x428]
mov dword [ebp - 0x424], 0
test eax, eax
je 0x43f77b
cmp eax, 0xffffffff
je 0x43f77b
push eax
call esi
mov dword [ebp - 0x428], 0
push ebx
call fcn.0043afd0
mov eax, dword [ebp - 0x428]
add esp, 4
mov dword [ebp - 0x424], 0
test eax, eax
je 0x43f7a4
cmp eax, 0xffffffff
je 0x43f7a4
push eax
call dword [sym.imp.KERNEL32.dll_FindClose]
mov eax, 1
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.00448d5d
mov esp, ebp
pop ebp
ret