Function at 0x439c28
Capabilities:
Check if file exists
Check os version
Get file attributes

Disassembly:
push ebp
mov ebp, esp
push ecx
mov ecx, 4
push 0
push 0
dec ecx
jne 0x439c31
push ecx
xchg dword [ebp - 4], ecx
push ebx
push esi
mov ebx, ecx
mov dword [ebp - 4], edx
mov esi, eax
xor eax, eax
push ebp
push 0x439ed3
push dword fs:[eax]
mov dword fs:[eax], esp
call sub.KERNEL32.dll_GetVersion
test eax, 0x80000000
jne 0x439da7
mov eax, dword [ebp - 4]
push eax
call sub.KERNEL32.dll_lstrlenW
mov edx, eax
test bl, bl
je 0x439c98
mov eax, edx
sub eax, 2
cmp eax, 1
jl 0x439c98
mov ecx, dword [ebp - 4]
cmp word [ecx + eax*2], 0x5c
jne 0x439c93
mov edx, dword [ebp - 4]
mov word [edx + eax*2], 0
mov edx, eax
jmp 0x439c98
dec eax
test eax, eax
jne 0x439c7c
test edx, edx
jle 0x439cba
mov eax, dword [ebp - 4]
cmp word [eax + edx*2 - 2], 0x5c
je 0x439cba
mov eax, dword [ebp - 4]
mov word [eax + edx*2], 0x5c
mov eax, dword [ebp - 4]
mov word [eax + edx*2 + 2], 0
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
cmp dword [eax], 0
jne 0x439cf9
lea ecx, [ebp - 8]
mov eax, dword [ebp + 8]
mov eax, dword [eax - 8]
mov eax, dword [eax]
mov dl, 1
call fcn.0042f328
mov eax, dword [ebp - 8]
push eax
lea ecx, [ebp - 0xc]
xor edx, edx
mov eax, dword [ebp - 4]
call fcn.0042f328
mov edx, dword [ebp - 0xc]
mov eax, dword [ebp + 8]
mov eax, dword [eax + 8]
pop ecx
call fcn.004257e4
jmp 0x439d36
lea eax, [ebp - 0x14]
mov edx, dword [ebp + 8]
mov edx, dword [edx - 4]
mov edx, dword [edx]
call fcn.00425700
mov eax, dword [ebp - 0x14]
lea ecx, [ebp - 0x10]
mov dl, 1
call fcn.00427ec4
mov eax, dword [ebp - 0x10]
push eax
lea ecx, [ebp - 0x18]
xor edx, edx
mov eax, dword [ebp - 4]
call fcn.0042f328
mov edx, dword [ebp - 0x18]
mov eax, dword [ebp + 8]
mov eax, dword [eax + 8]
pop ecx
call fcn.004257e4
mov eax, dword [ebp + 8]
mov eax, dword [eax + 8]
mov eax, dword [eax]
call fcn.00425798
cmp eax, 6
jle 0x439d84
mov eax, dword [ebp + 8]
mov eax, dword [eax + 8]
mov eax, dword [eax]
cmp byte [eax + 2], 0x3a
je 0x439d71
mov eax, dword [ebp + 8]
mov eax, dword [eax + 8]
mov eax, dword [eax]
cmp byte [eax], 0x5c
jne 0x439d84
mov eax, dword [ebp + 8]
mov eax, dword [eax + 8]
mov eax, dword [eax]
cmp byte [eax + 2], 0x5c
jne 0x439d84
mov eax, dword [ebp + 8]
mov eax, dword [eax + 8]
mov eax, dword [eax]
push eax
call sub.KERNEL32.dll_GetFileAttributesW
cmp eax, 0xffffffff
jne 0x439d88
xor ebx, ebx
jmp 0x439d8a
mov bl, 1
test bl, bl
je 0x439eb8
mov eax, dword [ebp + 8]
mov eax, dword [eax + 8]
mov eax, dword [eax]
mov edx, dword [ebp + 8]
mov edx, dword [edx - 8]
mov dword [edx], eax
jmp 0x439eb8
push esi
call sub.KERNEL32.dll_lstrlenA
mov edx, eax
test bl, bl
je 0x439dd0
mov eax, edx
sub eax, 2
cmp eax, 1
jl 0x439dd0
cmp byte [esi + eax], 0x5c
jne 0x439dcb
mov byte [esi + eax], 0
mov edx, eax
jmp 0x439dd0
dec eax
test eax, eax
jne 0x439dbd
test edx, edx
jle 0x439de4
cmp byte [esi + edx - 1], 0x5c
je 0x439de4
mov byte [esi + edx], 0x5c
mov byte [esi + edx + 1], 0
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
cmp dword [eax], 0
jne 0x439e1e
lea edx, [ebp - 0x1c]
mov eax, dword [ebp + 8]
mov eax, dword [eax - 8]
mov eax, dword [eax]
call fcn.00427f28
mov eax, dword [ebp - 0x1c]
push eax
lea eax, [ebp - 0x20]
mov edx, esi
call fcn.00425700
mov edx, dword [ebp - 0x20]
mov eax, dword [ebp + 8]
mov eax, dword [eax - 0xc]
pop ecx
call fcn.004257e4
jmp 0x439e4b
lea eax, [ebp - 0x24]
mov edx, dword [ebp + 8]
mov edx, dword [edx - 4]
mov edx, dword [edx]
call fcn.00425700
mov eax, dword [ebp - 0x24]
push eax
lea eax, [ebp - 0x28]
mov edx, esi
call fcn.00425700
mov edx, dword [ebp - 0x28]
mov eax, dword [ebp + 8]
mov eax, dword [eax - 0xc]
pop ecx
call fcn.004257e4
mov eax, dword [ebp + 8]
mov eax, dword [eax - 0xc]
mov eax, dword [eax]
call fcn.00425798
cmp eax, 3
jle 0x439e9e
mov eax, dword [ebp + 8]
mov eax, dword [eax - 0xc]
mov eax, dword [eax]
cmp byte [eax + 1], 0x3a
je 0x439e86
mov eax, dword [ebp + 8]
mov eax, dword [eax - 0xc]
mov eax, dword [eax]
cmp byte [eax], 0x5c
jne 0x439e9e
mov eax, dword [ebp + 8]
mov eax, dword [eax - 0xc]
mov eax, dword [eax]
cmp byte [eax + 1], 0x5c
jne 0x439e9e
mov eax, dword [ebp + 8]
mov eax, dword [eax - 0xc]
mov eax, dword [eax]
call fcn.00425998
push eax
call sub.KERNEL32.dll_GetFileAttributesA
cmp eax, 0xffffffff
jne 0x439ea2
xor ebx, ebx
jmp 0x439ea4
mov bl, 1
test bl, bl
je 0x439eb8
mov eax, dword [ebp + 8]
mov eax, dword [eax - 0xc]
mov eax, dword [eax]
mov edx, dword [ebp + 8]
mov edx, dword [edx - 4]
mov dword [edx], eax
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
push 0x439eda
lea eax, [ebp - 0x28]
mov edx, 9
call fcn.0042552c
ret