Function at 0x402587
Capabilities:
Get file size
Read file on windows

Disassembly:
push ecx
push ecx
push ebx
push ebp
push esi
push edi
push dword [0x450f1c]
xor ebp, ebp
call fcn.00411ecf
mov ebx, eax
call fcn.0040242f
mov esi, dword [esp + 0x1c]
test esi, esi
jne 0x4025ae
mov esi, 0x443ad4
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileW]
xor eax, eax
push eax
push 0x80
push 3
push eax
push 1
push 0xc0000000
push esi
mov dword [ebx + 0xc], eax
call edi
mov dword [ebx], eax
cmp eax, 0xffffffff
jne 0x402616
push 0
push 0x80
push 3
push 0
push 1
push 0x80000000
push esi
call edi
mov dword [ebx], eax
cmp eax, 0xffffffff
jne 0x402606
push 0
push 0x80
push 3
push 0
push 3
push 0x80000000
push esi
call edi
mov dword [ebx], eax
mov dword [ebx + 0xc], 1
cmp eax, 0xffffffff
je 0x4028d8
push 0
push eax
call dword [sym.imp.KERNEL32.dll_GetFileSize]
cmp dword [esp + 0x24], 2
mov edi, eax
jne 0x40262f
mov eax, 0xfde9
jmp 0x402631
xor eax, eax
mov dword [ebx + 0x18], eax
mov eax, dword [esp + 0x20]
mov esi, dword [sym.imp.KERNEL32.dll_ReadFile]
mov dword [ebx + 0x2c], eax
cmp edi, 3
jl 0x402689
push 0
lea eax, [esp + 0x18]
push eax
push 3
lea eax, [esp + 0x1c]
push eax
push dword [ebx]
call esi
cmp dword [esp + 0x14], 3
jne 0x402742
push 3
lea eax, [esp + 0x14]
push 0x4406f0
push eax
call fcn.00414307
add esp, 0xc
test eax, eax
jne 0x402742
mov dword [ebx + 0x18], 0xfde9
sub edi, 3
test edi, edi
jle 0x402772
lea eax, [edi + 2]
xor ecx, ecx
push eax
push ecx
push dword [0x44f914]
cmp dword [ebx + 0x18], ecx
jne 0x402754
call dword [sym.imp.KERNEL32.dll_HeapAlloc]
mov esi, eax
mov dword [esp + 0x20], esi
test esi, esi
je 0x402772
lea eax, [edi*4 + 2]
push eax
push 0
push dword [0x44f914]
call dword [sym.imp.KERNEL32.dll_HeapAlloc]
mov dword [ebx + 0x10], eax
test eax, eax
je 0x402772
push 0
lea eax, [esp + 0x18]
push eax
push edi
push esi
push dword [ebx]
call dword [sym.imp.KERNEL32.dll_ReadFile]
mov eax, dword [esp + 0x14]
push esi
mov byte [esi + eax], 0
call fcn.00415c30
mov edi, eax
push edi
call fcn.00415cb0
mov esi, eax
push esi
push dword [ebx + 0x10]
call fcn.00415990
pop ecx
pop ecx
push esi
call fcn.00415bb0
push edi
call fcn.00415bb0
push dword [ebx + 0x10]
call fcn.00415a90
pop ecx
push dword [esp + 0x20]
mov dword [ebx + 0x18], 0xfde9
mov edi, eax
push 0
push dword [0x44f914]
call dword [sym.imp.KERNEL32.dll_HeapFree]
jmp 0x402772
xor eax, eax
push eax
push eax
push eax
push dword [ebx]
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
jmp 0x402691
call dword [sym.imp.KERNEL32.dll_HeapAlloc]
mov dword [ebx + 0x10], eax
test eax, eax
je 0x402772
push 0
lea ecx, [esp + 0x18]
push ecx
push edi
push eax
push dword [ebx]
call esi
mov edi, dword [esp + 0x14]
mov eax, dword [ebx + 0x10]
test eax, eax
je 0x402915
xor ecx, ecx
mov word [eax + edi], cx
mov esi, dword [ebx + 0x10]
lea eax, [esi + edi]
mov dword [ebx + 0x14], eax
cmp esi, eax
jae 0x402915
push 0x10
pop edi
mov al, byte [esi]
cmp al, 0x20
je 0x4027a1
cmp al, 9
jne 0x4027a4
inc esi
jmp 0x402797
cmp al, 0x3b
jne 0x4027f2
inc esi
cmp byte [esi], 0x20
jne 0x4027af
inc esi
push edi
test ebp, ebp
je 0x4027bc
push ebp
call fcn.00415de4
jmp 0x4027c5
lea eax, [ebx + 0x1c]
push eax
call fcn.00414001
lea ebp, [eax - 8]
pop ecx
pop ecx
mov dword [ebp + 8], 2
mov dword [ebp + 0xc], esi
jmp 0x4027e7
cmp al, 0xa
je 0x4028bf
cmp al, 0xd
je 0x4028bf
inc esi
mov al, byte [esi]
test al, al
jne 0x4027d6
jmp 0x4028bf
cmp al, 0x5b
jne 0x402859
inc esi
push edi
test ebp, ebp
je 0x402804
push ebp
call fcn.00415de4
jmp 0x40280d
lea eax, [ebx + 0x1c]
push eax
call fcn.00414001
lea ebp, [eax - 8]
mov dword [ebp + 8], 1
mov dword [ebp + 0xc], esi
mov al, byte [esi]
pop ecx
pop ecx
test al, al
je 0x40283e
mov cl, al
mov al, cl
cmp cl, 0x5d
je 0x40283e
cmp cl, 0xa
je 0x40283e
cmp cl, 0xd
je 0x40283e
inc esi
mov al, byte [esi]
mov cl, al
test al, al
jne 0x402824
mov byte [esi], 0
inc esi
cmp al, 0x5d
jne 0x4028c3
jmp 0x402851
cmp al, 0xa
je 0x4028c3
cmp al, 0xd
je 0x4028c3
inc esi
mov al, byte [esi]
test al, al
jne 0x402848
jmp 0x4028c3
cmp al, 0xa
je 0x4028c3
cmp al, 0xd
je 0x4028c3
mov edx, esi
jmp 0x402874
cmp al, 0x3d
je 0x402878
cmp al, 0xd
je 0x402878
cmp al, 0xa
je 0x402878
inc esi
mov al, byte [esi]
test al, al
jne 0x402865
lea eax, [esi - 1]
jmp 0x40288a
mov cl, byte [eax]
cmp cl, 0x20
je 0x402889
cmp cl, 9
jne 0x40288e
dec eax
cmp eax, edx
ja 0x40287d
mov byte [eax + 1], 0
inc esi
mov al, byte [esi]
cmp al, 0x20
je 0x402892
cmp al, 9
je 0x402892
push esi
push edx
lea eax, [ebx + 0x1c]
push ebp
push eax
call fcn.00402557
add esp, 0x10
mov ebp, eax
jmp 0x4028b9
cmp al, 0xa
je 0x4028bf
cmp al, 0xd
je 0x4028bf
inc esi
mov al, byte [esi]
test al, al
jne 0x4028b0
mov byte [esi], 0
inc esi
mov al, byte [esi]
cmp al, 0xa
je 0x4028c2
cmp al, 0xd
je 0x4028c2
cmp esi, dword [ebx + 0x14]
jb 0x402797
jmp 0x402915
mov eax, dword [esp + 0x20]
and dword [ebx], ebp
push esi
mov dword [ebx + 0x2c], eax
mov dword [ebx + 0x18], 0xfde9
call fcn.004137cd
pop ecx
lea eax, [eax*2 + 2]
push eax
push 0
push dword [0x44f914]
call dword [sym.imp.KERNEL32.dll_HeapAlloc]
mov dword [ebx + 4], eax
test eax, eax
je 0x402915
push esi
push eax
call fcn.004137ab
pop ecx
pop ecx
mov eax, dword [ebx]
pop edi
pop esi
pop ebp
pop ebx
pop ecx
pop ecx
ret 0xc