Function at 0x4216e4
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 0x4216ec
push ecx
push ebx
push esi
push edi
mov edi, edx
mov esi, eax
xor eax, eax
push ebp
push 0x421952
push dword fs:[eax]
mov dword fs:[eax], esp
mov eax, esi
call fcn.00421518
push esi
call sub.kernel32.dll_GetFileAttributesW
cmp eax, 0xffffffff
sete bl
test edi, edi
je 0x421726
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, 0x42196c
call fcn.00414818
push dword [ebp - 0x28]
push 0x421998
lea edx, [ebp - 0x2c]
mov eax, 0x4219a4
call fcn.00414818
push dword [ebp - 0x2c]
lea eax, [ebp - 0x24]
mov edx, 3
call fcn.004040a8
mov eax, dword [ebp - 0x24]
call fcn.004041e8
push eax
push 0x80000002
call sub.advapi32.dll_RegOpenKeyExA_1
not eax
test eax, eax
jne 0x421781
xor eax, eax
mov dword [ebp - 0x10], eax
mov dword [ebp - 8], 8
mov dword [ebp - 0xc], 4
test bl, bl
jne 0x421841
cmp dword [ebp - 0x10], 0
je 0x421841
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, 0x4219b8
call fcn.00414818
mov eax, dword [ebp - 0x30]
call fcn.004041e8
push eax
mov eax, dword [ebp - 0x10]
push eax
call sub.advapi32.dll_RegQueryValueExA_1
test eax, eax
jne 0x421841
cmp dword [ebp - 0x20], 3
jne 0x421841
cmp dword [ebp - 8], 8
jne 0x421841
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, 0x4219c8
call fcn.00414818
mov eax, dword [ebp - 0x34]
call fcn.004041e8
push eax
mov eax, dword [ebp - 0x10]
push eax
call sub.advapi32.dll_RegQueryValueExA_1
test eax, eax
jne 0x421841
cmp dword [ebp - 0x20], 3
jne 0x421841
cmp dword [ebp - 0xc], 4
jne 0x421841
cmp dword [ebp - 0x14], 0x10000
jne 0x42182f
cmp dword [ebp - 0x18], 0x10000
jbe 0x421841
jmp 0x421831
jle 0x421841
mov eax, esi
call fcn.00421464
cmp eax, dword [ebp - 0x1c]
je 0x42191e
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 0x42191a
lea edx, [ebp - 4]
mov eax, 0x4219dc
call fcn.00421650
push 0
lea eax, [ebp - 8]
push eax
mov eax, dword [ebp - 4]
call fcn.00403fe8
push eax
mov eax, dword [ebp - 4]
push eax
push edi
call sub.kernel32.dll_WriteFile_1
test eax, eax
je 0x421898
mov eax, dword [ebp - 4]
call fcn.00403fe8
cmp eax, dword [ebp - 8]
je 0x42189c
xor ebx, ebx
jmp 0x42189e
mov bl, 1
push edi
call sub.kernel32.dll_CloseHandle
test bl, bl
je 0x421920
cmp dword [ebp - 0x10], 0
je 0x421920
mov dword [ebp - 0x18], 0x10000
mov dword [ebp - 0x14], 0x10000
mov eax, esi
call fcn.00421464
mov dword [ebp - 0x1c], eax
push 8
lea eax, [ebp - 0x18]
push eax
push 3
push 0
mov eax, 0x4219b8
lea edx, [ebp - 0x38]
call fcn.00414818
mov eax, dword [ebp - 0x38]
call fcn.004041e8
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, 0x4219c8
lea edx, [ebp - 0x3c]
call fcn.00414818
mov eax, dword [ebp - 0x3c]
call fcn.004041e8
push eax
mov eax, dword [ebp - 0x10]
push eax
call sub.advapi32.dll_RegSetValueExA
jmp 0x421920
xor ebx, ebx
jmp 0x421920
mov bl, 1
cmp dword [ebp - 0x10], 0
je 0x42192f
mov eax, dword [ebp - 0x10]
push eax
call sub.advapi32.dll_RegCloseKey_1
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
push 0x421959
lea eax, [ebp - 0x3c]
mov edx, 7
call fcn.00403d70
lea eax, [ebp - 4]
call fcn.00403d4c
ret