Function at 0x41a930
Capabilities:
Get file size
Read file on windows

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x4bb502
mov eax, dword fs:[0]
push eax
sub esp, 0x8c
mov eax, dword [0x4f2008]
xor eax, ebp
mov dword [ebp - 0x10], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov edi, ecx
mov eax, dword [edi]
mov esi, dword [ebp + 8]
mov byte [edi + 8], 0
call dword [eax]
push 4
mov dword [ebp - 0x6c], 0
call fcn.00495cb6
add esp, 4
mov dword [ebp - 0x70], eax
mov dword [ebp - 4], 0
mov dword [eax], 0
mov dword [eax], 0xffffffff
mov dword [ebp - 4], 0xffffffff
mov dword [ebp - 0x6c], eax
mov dword [ebp - 4], 1
lea ecx, [ebp - 0x6c]
push 0x80
push 3
push 1
push 0x80000000
push esi
call fcn.00418cd0
test al, al
jne 0x41aa07
lea ecx, [ebp - 0x34]
call fcn.0041b6e0
mov byte [ebp - 4], 2
cmp dword [edi + 4], 0
je 0x41a9f3
sub esp, 0x18
lea eax, [ebp - 0x34]
mov ecx, esp
mov dword [ebp - 0x70], esp
push eax
call fcn.00402693
mov byte [ebp - 4], 3
mov ecx, dword [edi + 4]
push 0
mov eax, dword [ecx]
mov byte [ebp - 4], 2
call dword [eax + 4]
mov byte [ebp - 4], 1
lea ecx, [ebp - 0x34]
call fcn.0040192c
mov esi, dword [ebp - 0x6c]
jmp 0x41ac0a
mov esi, dword [ebp - 0x6c]
test esi, esi
je 0x41abc9
mov eax, dword [esi]
cmp eax, 0xffffffff
je 0x41abc9
lea ecx, [ebp - 0x18]
push ecx
push eax
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x41aa3d
call dword [sym.imp.KERNEL32.dll_GetLastError]
test eax, eax
jne 0x41abc9
mov ecx, dword [ebp - 0x18]
xor eax, eax
add eax, ebx
mov dword [ebp - 0x70], eax
adc ecx, 0
or eax, ecx
mov dword [ebp - 0x7c], ecx
je 0x41abc9
xorps xmm0, xmm0
mov byte [ebp - 0x65], 1
push 0x10000
mov dword [ebp - 0x14], 0
movlpd qword [ebp - 0x1c], xmm0
call fcn.004963de
mov ecx, dword [ebp - 0x1c]
mov ebx, eax
mov eax, dword [ebp - 0x18]
add esp, 4
mov dword [ebp - 0x78], eax
mov dword [ebp - 0x74], ecx
test ebx, ebx
je 0x41ab58
cmp dword [esi], 0xffffffff
je 0x41ab70
push 0
lea eax, [ebp - 0x14]
mov dword [ebp - 0x14], 0
push eax
push 0x10000
push ebx
push dword [esi]
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x41ab58
cmp byte [edi + 8], 0
jne 0x41ab2b
mov ecx, dword [ebp - 0x14]
test ecx, ecx
je 0x41ab55
mov eax, dword [edi]
push ecx
push ebx
mov ecx, edi
call dword [eax + 4]
mov edx, dword [ebp - 0x74]
add edx, dword [ebp - 0x14]
mov ecx, dword [ebp - 0x78]
mov eax, dword [edi + 4]
adc ecx, 0
mov dword [ebp - 0x74], edx
mov dword [ebp - 0x78], ecx
test eax, eax
je 0x41ab1c
mov esi, dword [eax]
mov edx, ecx
mov ecx, dword [ebp - 0x74]
call fcn.004b9300
mov edx, dword [ebp - 0x7c]
mov ecx, dword [ebp - 0x70]
movsd qword [ebp - 0x1c], xmm0
call fcn.004b9300
movsd xmm1, qword [ebp - 0x1c]
sub esp, 8
divsd xmm1, xmm0
mov ecx, dword [edi + 4]
movsd qword [esp], xmm1
call dword [esi]
mov esi, dword [ebp - 0x6c]
mov dword [ebp - 0x14], 0
jmp 0x41aa83
lea ecx, [ebp - 0x4c]
call fcn.00401bd5
mov byte [ebp - 4], 6
lea eax, [ebp - 0x4c]
push eax
push 0
mov ecx, edi
call fcn.0041ac70
xor al, al
mov byte [ebp - 0x65], al
mov byte [ebp - 4], 1
lea ecx, [ebp - 0x4c]
call fcn.0040192c
mov esi, dword [ebp - 0x6c]
mov eax, dword [esi]
cmp eax, 0xffffffff
je 0x41ab70
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
test eax, eax
je 0x41ab70
mov dword [esi], 0xffffffff
push ebx
call fcn.004963d9
mov eax, dword [edi]
add esp, 4
mov ecx, edi
call dword [eax + 8]
lea ecx, [ebp - 0x98]
call fcn.00401bd5
mov byte [ebp - 4], 7
cmp dword [edi + 4], 0
je 0x41abb5
sub esp, 0x18
mov ecx, esp
mov dword [ebp - 0x70], esp
push eax
call fcn.00402693
mov byte [ebp - 4], 8
mov ecx, dword [edi + 4]
push 1
mov eax, dword [ecx]
mov byte [ebp - 4], 7
call dword [eax + 4]
mov byte [ebp - 4], 1
lea ecx, [ebp - 0x98]
call fcn.0040192c
mov bl, byte [ebp - 0x65]
jmp 0x41ac0c
lea ecx, [ebp - 0x64]
call fcn.00401bd5
mov byte [ebp - 4], 4
cmp dword [edi + 4], 0
je 0x41abfe
sub esp, 0x18
lea eax, [ebp - 0x64]
mov ecx, esp
mov dword [ebp - 0x70], esp
push eax
call fcn.00402693
mov byte [ebp - 4], 5
mov ecx, dword [edi + 4]
push 0
mov eax, dword [ecx]
mov byte [ebp - 4], 4
call dword [eax + 4]
mov byte [ebp - 4], 1
lea ecx, [ebp - 0x64]
call fcn.0040192c
xor bl, bl
mov dword [ebp - 4], 0xffffffff
test esi, esi
je 0x41ac41
mov eax, dword [esi]
cmp eax, 0xffffffff
je 0x41ac2f
test eax, eax
je 0x41ac2f
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [esi], 0
push 4
push esi
call fcn.00495ce6
add esp, 8
mov dword [ebp - 0x6c], 0
mov al, bl
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.00495ca5
mov esp, ebp
pop ebp
ret 4