Function at 0x42b320
Capabilities:
Check if file exists
Get file attributes
Query or enumerate registry value
Set registry value
Write file on windows

Disassembly:
push ebp
mov ebp, esp
mov ecx, 7
push 0
push 0
dec ecx
jne 0x42b328
push ecx
push ebx
push esi
push edi
mov edi, edx
mov esi, eax
xor eax, eax
push ebp
push 0x42b58e
push dword fs:[eax]
mov dword fs:[eax], esp
mov eax, esi
call fcn.0042b154
push esi
call sub.KERNEL32.dll_GetFileAttributesW
cmp eax, 0xffffffff
sete bl
test edi, edi
je 0x42b362
mov eax, ebx
xor al, 1
mov byte [edi], al
lea eax, [ebp - 0x10]
push eax
push 0xf003f
push 0
lea edx, [ebp - 0x28]
mov eax, 0x42b5a8
call fcn.0041dcd4
push dword [ebp - 0x28]
push 0x42b5d4
lea edx, [ebp - 0x2c]
mov eax, 0x42b5e0
call fcn.0041dcd4
push dword [ebp - 0x2c]
lea eax, [ebp - 0x24]
mov edx, 3
call fcn.0041b808
mov eax, dword [ebp - 0x24]
call fcn.0041b948
push eax
push reloc.OLEAUT32.dll_SysReAllocString
call sub.ADVAPI32.dll_RegOpenKeyExA
not eax
test eax, eax
jne 0x42b3bd
xor eax, eax
mov dword [ebp - 0x10], eax
mov dword [ebp - 8], 8
mov dword [ebp - 0xc], 4
test bl, bl
jne 0x42b47d
cmp dword [ebp - 0x10], 0
je 0x42b47d
lea eax, [ebp - 8]
push eax
lea eax, [ebp - 0x18]
push eax
lea eax, [ebp - 0x20]
push eax
push 0
lea edx, [ebp - 0x30]
mov eax, 0x42b5f4
call fcn.0041dcd4
mov eax, dword [ebp - 0x30]
call fcn.0041b948
push eax
mov eax, dword [ebp - 0x10]
push eax
call sub.ADVAPI32.dll_RegQueryValueExA
test eax, eax
jne 0x42b47d
cmp dword [ebp - 0x20], 3
jne 0x42b47d
cmp dword [ebp - 8], 8
jne 0x42b47d
lea eax, [ebp - 0xc]
push eax
lea eax, [ebp - 0x1c]
push eax
lea eax, [ebp - 0x20]
push eax
push 0
lea edx, [ebp - 0x34]
mov eax, 0x42b604
call fcn.0041dcd4
mov eax, dword [ebp - 0x34]
call fcn.0041b948
push eax
mov eax, dword [ebp - 0x10]
push eax
call sub.ADVAPI32.dll_RegQueryValueExA
test eax, eax
jne 0x42b47d
cmp dword [ebp - 0x20], 3
jne 0x42b47d
cmp dword [ebp - 0xc], 4
jne 0x42b47d
cmp dword [ebp - 0x14], 0x10000
jne 0x42b46b
cmp dword [ebp - 0x18], 0x10000
jbe 0x42b47d
jmp 0x42b46d
jle 0x42b47d
mov eax, esi
call fcn.0042b0a0
cmp eax, dword [ebp - 0x1c]
je 0x42b55a
push 0
push 0
push 2
push 0
push 0
push 0xc0000000
push esi
call sub.KERNEL32.dll_CreateFileW
mov edi, eax
cmp edi, 0xffffffff
je 0x42b556
lea edx, [ebp - 4]
mov eax, 0x42b618
call fcn.0042b28c
push 0
lea eax, [ebp - 8]
push eax
mov eax, dword [ebp - 4]
call fcn.0041b748
push eax
mov eax, dword [ebp - 4]
push eax
push edi
call sub.KERNEL32.dll_WriteFile
test eax, eax
je 0x42b4d4
mov eax, dword [ebp - 4]
call fcn.0041b748
cmp eax, dword [ebp - 8]
je 0x42b4d8
xor ebx, ebx
jmp 0x42b4da
mov bl, 1
push edi
call sub.KERNEL32.dll_CloseHandle
test bl, bl
je 0x42b55c
cmp dword [ebp - 0x10], 0
je 0x42b55c
mov dword [ebp - 0x18], 0x10000
mov dword [ebp - 0x14], 0x10000
mov eax, esi
call fcn.0042b0a0
mov dword [ebp - 0x1c], eax
push 8
lea eax, [ebp - 0x18]
push eax
push 3
push 0
mov eax, 0x42b5f4
lea edx, [ebp - 0x38]
call fcn.0041dcd4
mov eax, dword [ebp - 0x38]
call fcn.0041b948
push eax
mov eax, dword [ebp - 0x10]
push eax
call sub.ADVAPI32.dll_RegSetValueExA
push 4
lea eax, [ebp - 0x1c]
push eax
push 3
push 0
mov eax, 0x42b604
lea edx, [ebp - 0x3c]
call fcn.0041dcd4
mov eax, dword [ebp - 0x3c]
call fcn.0041b948
push eax
mov eax, dword [ebp - 0x10]
push eax
call sub.ADVAPI32.dll_RegSetValueExA
jmp 0x42b55c
xor ebx, ebx
jmp 0x42b55c
mov bl, 1
cmp dword [ebp - 0x10], 0
je 0x42b56b
mov eax, dword [ebp - 0x10]
push eax
call sub.ADVAPI32.dll_RegCloseKey
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
push 0x42b595
lea eax, [ebp - 0x3c]
mov edx, 7
call fcn.0041b50c
lea eax, [ebp - 4]
call fcn.0041b4e8
ret