Function at 0x427c20
Capabilities:
Check if file exists
Get file attributes
Read file via mapping

Disassembly:
push ebp
mov ebp, esp
mov ecx, 5
push 0
push 0
dec ecx
jne 0x427c28
push ebx
push esi
push edi
mov byte [ebp - 9], al
xor eax, eax
push ebp
push 0x427f7b
push dword fs:[eax]
mov dword fs:[eax], esp
xor ebx, ebx
lea eax, [ebp - 4]
mov edx, dword [ebp + 8]
mov edx, dword [edx - 4]
mov edx, dword [edx + 0x4c]
call fcn.00406f30
push 1
mov esi, dword [0x67d0e0]
mov esi, dword [esi]
mov ecx, 0x7fffffff
mov edx, dword [ebp - 4]
mov eax, 0x427f98
call esi
mov edx, eax
lea eax, [ebp - 4]
mov ecx, 0x7fffffff
call fcn.00407600
lea eax, [ebp - 0x14]
mov ecx, 0x427fa8
mov edx, dword [ebp - 4]
call fcn.004072b0
mov eax, dword [ebp - 0x14]
call fcn.00406f68
push eax
call sub.KERNEL32.DLL_GetFileAttributesW
cmp eax, 0xffffffff
je 0x427e99
cmp byte [ebp - 9], 0
jne 0x427e99
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
mov eax, dword [eax + 0x40]
mov edx, dword [ebp + 8]
mov edx, dword [edx - 4]
sub eax, dword [edx + 0x38]
mov edx, dword [ebp + 8]
mov edx, dword [edx - 4]
mov dword [edx + 0x48c], eax
mov edx, dword [ebp + 8]
test eax, eax
jne 0x427e7a
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
mov dword [eax + 0x48c], 0x1000
call sub.KERNEL32.DLL_GetVersion_1
test eax, 0x80000000
jne 0x427d1b
push 0
push 0
push 3
push 0
push 1
push 0x80000000
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
mov eax, dword [eax + 0x4c]
call fcn.00406f68
push eax
call sub.KERNEL32.DLL_CreateFileW_1
mov ebx, eax
jmp 0x427d50
push 0
push 0
push 3
push 0
push 1
push 0x80000000
lea eax, [ebp - 0x18]
mov edx, dword [ebp + 8]
mov edx, dword [edx - 4]
mov edx, dword [edx + 0x4c]
mov ecx, 0
call fcn.00407120
mov eax, dword [ebp - 0x18]
call fcn.0040652c
push eax
call sub.KERNEL32.DLL_CreateFileA
mov ebx, eax
cmp ebx, 0xffffffff
je 0x427e7a
push 0
push 0
push 0
push 2
push 0
push ebx
call sub.KERNEL32.DLL_CreateFileMappingA
mov esi, eax
test esi, esi
je 0x427e74
push 0
push 0
push 0
push 4
push esi
call sub.KERNEL32.DLL_MapViewOfFile
mov edi, eax
test edi, edi
je 0x427e6e
mov eax, edi
call fcn.0041ac74
test eax, eax
je 0x427e68
movzx edx, word [eax + 0x18]
cmp dx, 0x20b
jne 0x427db2
mov ecx, eax
add ecx, 0x108
mov dword [ebp - 0x10], ecx
jmp 0x427dbd
mov ecx, eax
add ecx, 0xf8
mov dword [ebp - 0x10], ecx
mov ecx, dword [ebp - 0x10]
test byte [ecx + 0x24], 0x20
je 0x427e0b
mov eax, dword [ebp - 0x10]
mov eax, dword [eax + 0xc]
mov edx, dword [ebp + 8]
mov edx, dword [edx - 4]
mov dword [edx + 0x48c], eax
mov eax, dword [ebp - 0x10]
mov eax, dword [eax + 8]
mov edx, dword [ebp + 8]
mov edx, dword [edx - 4]
mov dword [edx + 0x44], eax
add dword [ebp - 0x10], 0x28
mov eax, dword [ebp - 0x10]
test byte [eax + 0x24], 0x20
je 0x427e68
mov eax, dword [ebp - 0x10]
mov eax, dword [eax + 0xc]
mov edx, dword [ebp - 0x10]
add eax, dword [edx + 8]
mov edx, dword [ebp + 8]
mov edx, dword [edx - 4]
mov dword [edx + 0x44], eax
jmp 0x427e68
cmp dx, 0x20b
jne 0x427e41
lea edx, [eax + 0x18]
mov edx, dword [edx + 0x14]
mov ecx, dword [ebp + 8]
mov ecx, dword [ecx - 4]
mov dword [ecx + 0x48c], edx
mov edx, dword [ebp + 8]
mov edx, dword [edx - 4]
mov edx, dword [edx + 0x48c]
add eax, 0x18
add edx, dword [eax + 4]
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
mov dword [eax + 0x44], edx
jmp 0x427e68
mov edx, dword [eax + 0x2c]
mov ecx, dword [ebp + 8]
mov ecx, dword [ecx - 4]
mov dword [ecx + 0x48c], edx
mov edx, dword [ebp + 8]
mov edx, dword [edx - 4]
mov edx, dword [edx + 0x48c]
add edx, dword [eax + 0x1c]
mov eax, dword [ebp + 8]
mov eax, dword [eax - 4]
mov dword [eax + 0x44], edx
push edi
call sub.KERNEL32.DLL_UnmapViewOfFile
push esi
call sub.KERNEL32.DLL_CloseHandle_1
push ebx
call sub.KERNEL32.DLL_CloseHandle_1
mov eax, dword [ebp + 8]
push eax
lea eax, [ebp - 0x1c]
mov ecx, 0x427fa8
mov edx, dword [ebp - 4]
call fcn.004072b0
mov eax, dword [ebp - 0x1c]
call fcn.00426af8
pop ecx
mov ebx, eax
test bl, bl
jne 0x427f40
cmp byte [ebp - 9], 0
jne 0x427ed7
lea eax, [ebp - 0x20]
mov ecx, 0x427fc0
mov edx, dword [ebp - 4]
call fcn.004072b0
mov eax, dword [ebp - 0x20]
lea edx, [ebp - 8]
call fcn.00424320
test al, al
je 0x427ed7
mov eax, dword [ebp + 8]
push eax
mov eax, dword [ebp - 8]
call fcn.00425ad0
pop ecx
mov bl, 1
jmp 0x427f40
lea eax, [ebp - 0x24]
mov ecx, 0x427fd8
mov edx, dword [ebp - 4]
call fcn.004072b0
mov eax, dword [ebp - 0x24]
lea edx, [ebp - 8]
call fcn.00424320
test al, al
je 0x427f07
mov eax, dword [ebp + 8]
push eax
mov eax, dword [ebp - 8]
call fcn.00424f4c
pop ecx
test al, al
jne 0x427f0b
xor ebx, ebx
jmp 0x427f0d
mov bl, 1
test bl, bl
jne 0x427f3c
cmp byte [ebp - 9], 0
jne 0x427f38
mov eax, dword [ebp + 8]
push eax
lea eax, [ebp - 0x28]
mov ecx, 0x427ff0
mov edx, dword [ebp - 4]
call fcn.004072b0
mov eax, dword [ebp - 0x28]
call fcn.00426378
pop ecx
test al, al
jne 0x427f3c
xor eax, eax
jmp 0x427f3e
mov al, 1
mov ebx, eax
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
push 0x427f82
lea eax, [ebp - 0x28]
mov edx, 4
call fcn.00406ed4
lea eax, [ebp - 0x18]
call fcn.00405e70
lea eax, [ebp - 0x14]
call fcn.00406ecc
lea eax, [ebp - 8]
call fcn.00405e70
lea eax, [ebp - 4]
call fcn.00406ecc
ret