Function at 0x4051e4
Capabilities:
Check if file exists
Enumerate files on windows

Disassembly:
push ebp
mov ebp, esp
add esp, 0xfffff06c
push ebx
push esi
push edi
mov dword [ebp - 4], ecx
mov edi, edx
mov esi, eax
mov ebx, dword [ebp + 8]
call fcn.00404ea4
test eax, eax
je 0x405389
cmp dword [ebp - 4], 0
je 0x405226
mov eax, dword [ebp - 4]
cmp word [eax], 0
je 0x405226
lea eax, [ebp - 0x804]
mov edx, dword [ebp - 4]
call fcn.0040dff4
jmp 0x405238
lea edx, [ebp - 0x804]
mov ecx, 0x10000000
mov eax, edi
call fcn.0040df78
cmp esi, 0xffffffff
jne 0x405277
lea eax, [ebp - 0xa54]
push eax
lea edx, [ebp - 0x804]
push edx
call sub.KERNEL32.DLL_FindFirstFileW
mov esi, eax
cmp esi, 0xffffffff
jne 0x40529f
call sub.KERNEL32.DLL_GetLastError
cmp eax, 2
je 0x405266
cmp eax, 3
jne 0x40526a
xor eax, eax
jmp 0x40526f
mov eax, 1
mov byte [ebx + 0xc2c], al
jmp 0x40529f
lea edx, [ebp - 0xa54]
push edx
push esi
call sub.KERNEL32.DLL_FindNextFileW
test eax, eax
jne 0x40529f
or esi, 0xffffffff
call sub.KERNEL32.DLL_GetLastError
cmp eax, 0x12
setne al
and eax, 1
mov byte [ebx + 0xc2c], al
cmp esi, 0xffffffff
je 0x4054fa
lea edx, [ebp - 0x804]
lea edi, [ebx + 0x400]
mov eax, edi
call fcn.0040dff4
mov eax, edi
call fcn.00405594
lea edx, [ebp - 0xa28]
call fcn.0040dff4
mov eax, edi
mov ecx, 0x10000000
mov edx, ebx
call fcn.0040df64
mov eax, dword [ebp - 0xa38]
xor edx, edx
mov edx, eax
xor eax, eax
push edx
push eax
mov eax, dword [ebp - 0xa34]
xor edx, edx
add eax, dword [esp]
adc edx, dword [esp + 4]
mov dword [ebx + 0xc00], eax
mov dword [ebx + 0xc04], edx
lea eax, [ebp - 0xa40]
mov ecx, dword [ebp - 0xa54]
add esp, 8
mov dword [ebx + 0xc08], ecx
call fcn.00405cd4
mov dword [ebx + 0xc0c], eax
mov edx, dword [ebp - 0xa50]
mov dword [ebx + 0xc14], edx
mov edx, dword [ebp - 0xa4c]
mov dword [ebx + 0xc18], edx
mov ecx, dword [ebp - 0xa48]
mov dword [ebx + 0xc1c], ecx
mov ecx, dword [ebp - 0xa44]
mov dword [ebx + 0xc20], ecx
mov eax, dword [ebp - 0xa40]
mov dword [ebx + 0xc24], eax
mov eax, dword [ebp - 0xa3c]
mov dword [ebx + 0xc28], eax
mov eax, edi
call fcn.00406040
test al, al
je 0x4054fa
mov word [ebx + 0x400], 0
jmp 0x4054fa
test edi, edi
je 0x4053a1
cmp byte [edi], 0
je 0x4053a1
lea eax, [ebp - 0xe54]
mov edx, edi
call fcn.0040d94c
jmp 0x4053b4
lea edx, [ebp - 0xe54]
mov ecx, 0x10000000
mov eax, dword [ebp - 4]
call fcn.0040df64
cmp esi, 0xffffffff
jne 0x4053f3
lea eax, [ebp - 0xf94]
push eax
lea edx, [ebp - 0xe54]
push edx
call sub.KERNEL32.DLL_FindFirstFileA
mov esi, eax
cmp esi, 0xffffffff
jne 0x40541b
call sub.KERNEL32.DLL_GetLastError
cmp eax, 2
je 0x4053e2
cmp eax, 3
jne 0x4053e6
xor eax, eax
jmp 0x4053eb
mov eax, 1
mov byte [ebx + 0xc2c], al
jmp 0x40541b
lea edx, [ebp - 0xf94]
push edx
push esi
call sub.KERNEL32.DLL_FindNextFileA
test eax, eax
jne 0x40541b
or esi, 0xffffffff
call sub.KERNEL32.DLL_GetLastError
cmp eax, 0x12
setne al
and eax, 1
mov byte [ebx + 0xc2c], al
cmp esi, 0xffffffff
je 0x4054fa
lea edx, [ebp - 0xe54]
mov eax, ebx
call fcn.0040d94c
mov eax, ebx
call fcn.00405508
lea edx, [ebp - 0xf68]
call fcn.0040d94c
lea edx, [ebx + 0x400]
mov ecx, 0x10000000
mov eax, ebx
call fcn.0040df78
mov eax, dword [ebp - 0xf78]
xor edx, edx
mov edx, eax
xor eax, eax
push edx
push eax
mov eax, dword [ebp - 0xf74]
xor edx, edx
add eax, dword [esp]
adc edx, dword [esp + 4]
mov dword [ebx + 0xc00], eax
mov dword [ebx + 0xc04], edx
lea eax, [ebp - 0xf80]
mov ecx, dword [ebp - 0xf94]
add esp, 8
mov dword [ebx + 0xc08], ecx
call fcn.00405cd4
mov dword [ebx + 0xc0c], eax
mov edx, dword [ebp - 0xf90]
mov dword [ebx + 0xc14], edx
mov edx, dword [ebp - 0xf8c]
mov dword [ebx + 0xc18], edx
mov ecx, dword [ebp - 0xf88]
mov dword [ebx + 0xc1c], ecx
mov ecx, dword [ebp - 0xf84]
mov dword [ebx + 0xc20], ecx
mov eax, dword [ebp - 0xf80]
mov dword [ebx + 0xc24], eax
mov eax, dword [ebp - 0xf7c]
mov dword [ebx + 0xc28], eax
mov eax, ebx
call fcn.00406020
test al, al
je 0x4054fa
mov word [ebx + 0x400], 0
mov eax, esi
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 4