Function at 0x4308b0
Capabilities:
Encode data using xor
Get file size
Read file on windows

Disassembly:
push ebp
mov ebp, esp
and esp, 0xfffffff8
push 0xffffffffffffffff
push 0x84df61
mov eax, dword fs:[0]
push eax
sub esp, 0x150
mov eax, dword [0x8943b8]
xor eax, esp
mov dword [esp + 0x148], eax
push ebx
push esi
push edi
mov eax, dword [0x8943b8]
xor eax, esp
push eax
lea eax, [esp + 0x160]
mov dword fs:[0], eax
mov ebx, ecx
push str.configex123.ini
mov ecx, 0x8a0d08
call fcn.0040f2d0
test al, al
je 0x430c35
push 0x104
lea eax, [esp + 0x50]
push eax
push str.path
push str.th105path
mov ecx, 0x8a0d08
call fcn.0040f340
push str._score.dat
lea ecx, [esp + 0x50]
push 0x104
push ecx
call fcn.00820bb5
add esp, 0xc
xor esi, esi
push esi
push 0x80
push 3
push esi
push 1
push 1
lea edx, [esp + 0x64]
push edx
mov dword [esp + 0x40], vtable.CFileReader.0
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
mov dword [esp + 0x28], eax
jne 0x43096f
xor eax, eax
mov dword [esp + 0x28], eax
cmp eax, esi
mov dword [esp + 0x168], esi
je 0x430c35
push 0x80000
mov dword [esp + 0x20], esi
call fcn.007fb991
mov edi, eax
mov dword [esp + 0x1c], edi
push 0x80000
mov byte [esp + 0x170], 1
mov dword [esp + 0x40], esi
call fcn.007fb991
add esp, 8
mov dword [esp + 0x34], eax
mov eax, dword [esp + 0x28]
push esi
push eax
mov byte [esp + 0x170], 2
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov edx, dword [esp + 0x28]
push 0
lea ecx, [esp + 0x30]
push ecx
mov esi, eax
push esi
push edi
push edx
call dword [sym.imp.KERNEL32.dll_ReadFile]
xor ecx, ecx
test esi, esi
jbe 0x430a06
lea eax, [edi + esi - 1]
mov dword [esp + 0x10], eax
mov al, cl
mov dl, 7
imul dl
mov edx, dword [esp + 0x10]
xor al, byte [edx]
mov edx, dword [esp + 0x34]
sub dword [esp + 0x10], 1
mov byte [edx + ecx], al
add ecx, 1
cmp ecx, esi
jb 0x4309e7
push 0x80000
push edi
push esi
mov esi, dword [esp + 0x40]
push esi
call fcn.00409ab0
add esp, 0x10
test eax, eax
jne 0x430a24
push esi
jmp 0x430c10
mov eax, dword [edi + 4]
mov dword [ebx + 4], eax
mov ecx, dword [edi + 8]
mov dword [ebx + 8], ecx
mov edx, dword [edi + 0xc]
mov dword [ebx + 0xc], edx
mov eax, dword [edi + 0x10]
mov dword [ebx + 0x10], eax
mov ecx, dword [edi + 0x14]
mov dword [ebx + 0x14], ecx
mov edx, dword [edi + 0x18]
mov dword [ebx + 0x18], edx
mov eax, dword [edi + 0x1c]
mov dword [ebx + 0x1c], eax
mov ecx, dword [edi + 0x20]
mov dword [ebx + 0x20], ecx
mov edx, dword [edi + 0x24]
mov dword [ebx + 0x24], edx
mov eax, dword [edi + 0x28]
mov dword [ebx + 0x28], eax
mov ecx, dword [edi + 0x2c]
mov dword [ebx + 0x2c], ecx
mov edx, dword [edi + 0x30]
mov dword [ebx + 0x30], edx
mov eax, dword [edi + 0x34]
mov dword [ebx + 0x34], eax
mov ecx, dword [edi + 0x38]
mov dword [ebx + 0x38], ecx
mov edx, dword [edi + 0x3c]
mov dword [ebx + 0x3c], edx
mov eax, dword [edi + 0x40]
mov dword [ebx + 0x40], eax
mov eax, dword [edi + 0x44]
test eax, eax
mov esi, 0x48
jbe 0x430abb
mov dword [esp + 0x10], eax
mov ecx, dword [esi + edi]
lea edx, [esp + 0x14]
push edx
lea eax, [esp + 0x44]
mov dword [esp + 0x18], ecx
add esi, 4
push eax
lea ecx, [ebx + 0x44]
mov dword [esp + 0x24], esi
call fcn.00430450
sub dword [esp + 0x10], 1
jne 0x430a94
mov eax, dword [esi + edi]
add esi, 4
test eax, eax
jbe 0x430af0
mov dword [esp + 0x10], eax
mov ecx, dword [esi + edi]
lea edx, [esp + 0x14]
push edx
lea eax, [esp + 0x44]
mov dword [esp + 0x18], ecx
add esi, 4
push eax
lea ecx, [ebx + 0x50]
mov dword [esp + 0x24], esi
call fcn.00430450
sub dword [esp + 0x10], 1
jne 0x430ac9
mov eax, dword [esi + edi]
add esi, 4
test eax, eax
jbe 0x430b08
lea ebx, [ebx]
add esi, 8
sub eax, 1
jne 0x430b00
mov eax, dword [esi + edi]
add esi, 4
test eax, eax
jbe 0x430c0b
add ebx, 0xa8
mov dword [esp + 0x10], ebx
mov dword [esp + 0x14], eax
mov eax, dword [esi + edi]
add esi, 4
test eax, eax
jbe 0x430be7
mov dword [esp + 0x30], eax
jmp 0x430b40
mov ecx, dword [esi + edi]
mov edx, dword [esi + edi + 4]
mov dword [esp + 0x20], ecx
lea eax, [esp + 0x20]
add esi, 4
push eax
lea ecx, [esp + 0x1c]
push ecx
mov ecx, ebx
mov dword [esp + 0x44], edx
add esi, 4
call fcn.0043f2f0
mov edx, dword [ebx + 4]
mov ebx, dword [esp + 0x18]
test ebx, ebx
mov dword [esp + 0x44], edx
je 0x430b7b
cmp ebx, dword [esp + 0x10]
je 0x430b80
call fcn.0081ff70
mov eax, dword [esp + 0x1c]
cmp eax, dword [esp + 0x44]
je 0x430bd8
test ebx, ebx
jne 0x430b97
call fcn.0081ff70
mov eax, dword [esp + 0x1c]
cmp eax, dword [ebx + 4]
jne 0x430ba5
call fcn.0081ff70
mov eax, dword [esp + 0x1c]
mov ecx, dword [esp + 0x3c]
cmp dword [eax + 0x10], ecx
jle 0x430bbf
cmp eax, dword [ebx + 4]
jne 0x430bbc
call fcn.0081ff70
mov eax, dword [esp + 0x1c]
mov ecx, dword [eax + 0x10]
cmp eax, dword [ebx + 4]
mov dword [esp + 0x20], ecx
jne 0x430bd1
call fcn.0081ff70
mov eax, dword [esp + 0x1c]
mov edx, dword [esp + 0x20]
mov dword [eax + 0x10], edx
sub dword [esp + 0x30], 1
mov ebx, dword [esp + 0x10]
jne 0x430b40
mov eax, dword [esi + edi]
add esi, 4
test eax, eax
jbe 0x430bf9
add esi, 0x18
sub eax, 1
jne 0x430bf1
add ebx, 0xc
sub dword [esp + 0x14], 1
mov dword [esp + 0x10], ebx
jne 0x430b24
mov eax, dword [esp + 0x34]
push eax
call fcn.00820846
push edi
call fcn.00820846
mov eax, dword [esp + 0x30]
add esp, 8
test eax, eax
mov dword [esp + 0x24], vtable.CFileReader.0
je 0x430c35
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov ecx, dword [esp + 0x160]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [esp + 0x148]
xor ecx, esp
call fcn.0081fb35
mov esp, ebp
pop ebp
ret