Function at 0x48a010
Capabilities:
Get file size
Read file on windows

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x4a5b92
mov eax, dword fs:[0]
push eax
sub esp, 0x98
mov eax, dword [0x4c3008]
xor eax, ebp
mov dword [ebp - 0x14], 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 - 0x74], 0
call fcn.00495484
add esp, 4
mov dword [ebp - 0x78], eax
mov dword [ebp - 4], 0
mov dword [eax], 0
mov dword [eax], 0xffffffff
mov dword [ebp - 4], 0xffffffff
mov dword [ebp - 0x74], eax
mov dword [ebp - 4], 1
lea ecx, [ebp - 0x74]
push 0x80
push 3
push 1
push 0x80000000
push esi
call fcn.0047c0e0
test al, al
jne 0x48a133
lea ecx, [ebp - 0x6c]
call fcn.0048ab10
mov byte [ebp - 4], 2
cmp dword [edi + 4], 0
je 0x48a0d7
sub esp, 0x18
lea eax, [ebp - 0x6c]
mov ecx, esp
mov dword [ebp - 0x78], esp
push eax
call fcn.00403910
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
mov edx, dword [ebp - 0x58]
cmp edx, 8
jb 0x48a117
mov ecx, dword [ebp - 0x6c]
lea edx, [edx*2 + 2]
mov eax, ecx
cmp edx, 0x1000
jb 0x48a10d
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
jbe 0x48a10d
call dword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
push edx
push ecx
call fcn.004954b4
add esp, 8
mov esi, dword [ebp - 0x74]
xor eax, eax
mov dword [ebp - 0x5c], 0
mov dword [ebp - 0x58], 7
mov word [ebp - 0x6c], ax
jmp 0x48a482
mov esi, dword [ebp - 0x74]
test esi, esi
je 0x48a3df
mov eax, dword [esi]
cmp eax, 0xffffffff
je 0x48a3df
lea ecx, [ebp - 0x20]
push ecx
push eax
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x48a169
call dword [sym.imp.KERNEL32.dll_GetLastError]
test eax, eax
jne 0x48a3df
mov ecx, dword [ebp - 0x20]
xor eax, eax
add eax, ebx
mov dword [ebp - 0x78], eax
adc ecx, 0
or eax, ecx
mov dword [ebp - 0x84], ecx
je 0x48a3df
xorps xmm0, xmm0
mov byte [ebp - 0x6d], 1
push 0x10000
mov dword [ebp - 0x18], 0
movlpd qword [ebp - 0x24], xmm0
call fcn.00495be5
mov ecx, dword [ebp - 0x24]
mov ebx, eax
mov eax, dword [ebp - 0x20]
add esp, 4
mov dword [ebp - 0x80], eax
mov dword [ebp - 0x7c], ecx
test ebx, ebx
je 0x48a2ec
cmp dword [esi], 0xffffffff
je 0x48a304
push 0
lea eax, [ebp - 0x18]
mov dword [ebp - 0x18], 0
push eax
push 0x10000
push ebx
push dword [esi]
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x48a2ec
cmp byte [edi + 8], 0
jne 0x48a25d
mov ecx, dword [ebp - 0x18]
test ecx, ecx
je 0x48a2e9
mov eax, dword [edi]
push ecx
push ebx
mov ecx, edi
call dword [eax + 4]
mov edx, dword [ebp - 0x7c]
add edx, dword [ebp - 0x18]
mov ecx, dword [ebp - 0x80]
mov eax, dword [edi + 4]
adc ecx, 0
mov dword [ebp - 0x7c], edx
mov dword [ebp - 0x80], ecx
test eax, eax
je 0x48a24e
mov esi, dword [eax]
mov edx, ecx
mov ecx, dword [ebp - 0x7c]
call fcn.00496f50
mov edx, dword [ebp - 0x84]
mov ecx, dword [ebp - 0x78]
movsd qword [ebp - 0x24], xmm0
call fcn.00496f50
movsd xmm1, qword [ebp - 0x24]
sub esp, 8
divsd xmm1, xmm0
mov ecx, dword [edi + 4]
movsd qword [esp], xmm1
call dword [esi]
mov esi, dword [ebp - 0x74]
mov dword [ebp - 0x18], 0
jmp 0x48a1b2
xor eax, eax
mov dword [ebp - 0x2c], 0
mov dword [ebp - 0x28], 0
mov dword [ebp - 0x2c], 0
mov dword [ebp - 0x28], 7
mov word [ebp - 0x3c], ax
mov byte [ebp - 4], 6
lea eax, [ebp - 0x3c]
push eax
push 0
mov ecx, edi
call fcn.0048a4e0
xor al, al
mov byte [ebp - 0x6d], al
mov byte [ebp - 4], 1
mov edx, dword [ebp - 0x28]
cmp edx, 8
jb 0x48a2d5
mov ecx, dword [ebp - 0x3c]
lea edx, [edx*2 + 2]
mov eax, ecx
cmp edx, 0x1000
jb 0x48a2cb
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
jbe 0x48a2cb
call dword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
push edx
push ecx
call fcn.004954b4
add esp, 8
xor eax, eax
mov dword [ebp - 0x2c], 0
mov dword [ebp - 0x28], 7
mov word [ebp - 0x3c], ax
mov esi, dword [ebp - 0x74]
mov eax, dword [esi]
cmp eax, 0xffffffff
je 0x48a304
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
test eax, eax
je 0x48a304
mov dword [esi], 0xffffffff
push ebx
call fcn.0049598a
mov eax, dword [edi]
add esp, 4
mov ecx, edi
call dword [eax + 8]
mov edx, 7
mov dword [ebp - 0x88], 0
xor eax, eax
mov dword [ebp - 0x8c], 0
mov dword [ebp - 0x88], edx
mov dword [ebp - 0x8c], 0
mov word [ebp - 0x9c], ax
mov byte [ebp - 4], dl
cmp dword [edi + 4], eax
je 0x48a37a
sub esp, 0x18
lea eax, [ebp - 0x9c]
mov ecx, esp
mov dword [ebp - 0x78], esp
push eax
call fcn.00403910
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 edx, dword [ebp - 0x88]
mov byte [ebp - 4], 1
cmp edx, 8
jb 0x48a3ba
mov ecx, dword [ebp - 0x9c]
lea edx, [edx*2 + 2]
mov eax, ecx
cmp edx, 0x1000
jb 0x48a3b0
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
jbe 0x48a3b0
call dword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
push edx
push ecx
call fcn.004954b4
add esp, 8
mov bl, byte [ebp - 0x6d]
xor eax, eax
mov dword [ebp - 0x8c], 0
mov dword [ebp - 0x88], 7
mov word [ebp - 0x9c], ax
jmp 0x48a484
mov eax, 7
mov dword [ebp - 0x40], 0
xor ecx, ecx
mov dword [ebp - 0x44], 0
mov dword [ebp - 0x40], eax
mov dword [ebp - 0x44], 0
mov word [ebp - 0x54], cx
mov byte [ebp - 4], 4
cmp dword [edi + 4], ecx
je 0x48a431
sub esp, 0x18
lea eax, [ebp - 0x54]
mov ecx, esp
mov dword [ebp - 0x78], esp
push eax
call fcn.00403910
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 eax, dword [ebp - 0x40]
mov byte [ebp - 4], 1
cmp eax, 8
jb 0x48a46e
mov ecx, dword [ebp - 0x54]
lea edx, [eax*2 + 2]
mov eax, ecx
cmp edx, 0x1000
jb 0x48a464
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
jbe 0x48a464
call dword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
push edx
push ecx
call fcn.004954b4
add esp, 8
xor eax, eax
mov dword [ebp - 0x44], 0
mov dword [ebp - 0x40], 7
mov word [ebp - 0x54], ax
xor bl, bl
mov dword [ebp - 4], 0xffffffff
test esi, esi
je 0x48a4b9
mov eax, dword [esi]
cmp eax, 0xffffffff
je 0x48a4a7
test eax, eax
je 0x48a4a7
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [esi], 0
push 4
push esi
call fcn.004954b4
add esp, 8
mov dword [ebp - 0x74], 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 - 0x14]
xor ecx, ebp
call fcn.00495473
mov esp, ebp
pop ebp
ret 4