Function at 0x401bd9
Capabilities:
Get file size
Read file on windows

Disassembly:
push ecx
push ecx
push ebx
push ebp
push esi
push edi
push dword [0x51b570]
xor ebp, ebp
call fcn.00408576
mov ebx, eax
call fcn.00401b79
mov esi, dword [esp + 0x1c]
test esi, esi
jne 0x401c00
mov esi, 0x511eec
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 0x401c68
push 0
push 0x80
push 3
push 0
push 1
push connect
push esi
call edi
mov dword [ebx], eax
cmp eax, 0xffffffff
jne 0x401c58
push 0
push 0x80
push 3
push 0
push 3
push connect
push esi
call edi
mov dword [ebx], eax
mov dword [ebx + 0xc], 1
cmp eax, 0xffffffff
je 0x401f2a
push 0
push eax
call dword [sym.imp.KERNEL32.dll_GetFileSize]
cmp dword [esp + 0x24], 2
mov edi, eax
jne 0x401c81
mov eax, 0xfde9
jmp 0x401c83
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 0x401cdb
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 0x401d94
push 3
lea eax, [esp + 0x14]
push 0x4fe690
push eax
call fcn.0040a265
add esp, 0xc
test eax, eax
jne 0x401d94
mov dword [ebx + 0x18], 0xfde9
sub edi, 3
test edi, edi
jle 0x401dc4
lea eax, [edi + 2]
xor ecx, ecx
push eax
push ecx
push dword [0x51aa3c]
cmp dword [ebx + 0x18], ecx
jne 0x401da6
call dword [sym.imp.KERNEL32.dll_HeapAlloc]
mov esi, eax
mov dword [esp + 0x20], esi
test esi, esi
je 0x401dc4
lea eax, [edi*4 + 2]
push eax
push 0
push dword [0x51aa3c]
call dword [sym.imp.KERNEL32.dll_HeapAlloc]
mov dword [ebx + 0x10], eax
test eax, eax
je 0x401dc4
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.0040bb90
mov edi, eax
push edi
call fcn.0040bc10
mov esi, eax
push esi
push dword [ebx + 0x10]
call fcn.0040b8f0
pop ecx
pop ecx
push esi
call fcn.0040bb10
push edi
call fcn.0040bb10
push dword [ebx + 0x10]
call fcn.0040b9f0
pop ecx
push dword [esp + 0x20]
mov dword [ebx + 0x18], 0xfde9
mov edi, eax
push 0
push dword [0x51aa3c]
call dword [sym.imp.KERNEL32.dll_HeapFree]
jmp 0x401dc4
xor eax, eax
push eax
push eax
push eax
push dword [ebx]
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
jmp 0x401ce3
call dword [sym.imp.KERNEL32.dll_HeapAlloc]
mov dword [ebx + 0x10], eax
test eax, eax
je 0x401dc4
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 0x401f67
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 0x401f67
push 0x10
pop edi
mov al, byte [esi]
cmp al, 0x20
je 0x401df3
cmp al, 9
jne 0x401df6
inc esi
jmp 0x401de9
cmp al, 0x3b
jne 0x401e44
inc esi
cmp byte [esi], 0x20
jne 0x401e01
inc esi
push edi
test ebp, ebp
je 0x401e0e
push ebp
call fcn.0040bd44
jmp 0x401e17
lea eax, [ebx + 0x1c]
push eax
call fcn.004091a1
lea ebp, [eax - 8]
pop ecx
pop ecx
mov dword [ebp + 8], 2
mov dword [ebp + 0xc], esi
jmp 0x401e39
cmp al, 0xa
je 0x401f11
cmp al, 0xd
je 0x401f11
inc esi
mov al, byte [esi]
test al, al
jne 0x401e28
jmp 0x401f11
cmp al, 0x5b
jne 0x401eab
inc esi
push edi
test ebp, ebp
je 0x401e56
push ebp
call fcn.0040bd44
jmp 0x401e5f
lea eax, [ebx + 0x1c]
push eax
call fcn.004091a1
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 0x401e90
mov cl, al
mov al, cl
cmp cl, 0x5d
je 0x401e90
cmp cl, 0xa
je 0x401e90
cmp cl, 0xd
je 0x401e90
inc esi
mov al, byte [esi]
mov cl, al
test al, al
jne 0x401e76
mov byte [esi], 0
inc esi
cmp al, 0x5d
jne 0x401f15
jmp 0x401ea3
cmp al, 0xa
je 0x401f15
cmp al, 0xd
je 0x401f15
inc esi
mov al, byte [esi]
test al, al
jne 0x401e9a
jmp 0x401f15
cmp al, 0xa
je 0x401f15
cmp al, 0xd
je 0x401f15
mov edx, esi
jmp 0x401ec6
cmp al, 0x3d
je 0x401eca
cmp al, 0xd
je 0x401eca
cmp al, 0xa
je 0x401eca
inc esi
mov al, byte [esi]
test al, al
jne 0x401eb7
lea eax, [esi - 1]
jmp 0x401edc
mov cl, byte [eax]
cmp cl, 0x20
je 0x401edb
cmp cl, 9
jne 0x401ee0
dec eax
cmp eax, edx
ja 0x401ecf
mov byte [eax + 1], 0
inc esi
mov al, byte [esi]
cmp al, 0x20
je 0x401ee4
cmp al, 9
je 0x401ee4
push esi
push edx
lea eax, [ebx + 0x1c]
push ebp
push eax
call fcn.00401ba9
add esp, 0x10
mov ebp, eax
jmp 0x401f0b
cmp al, 0xa
je 0x401f11
cmp al, 0xd
je 0x401f11
inc esi
mov al, byte [esi]
test al, al
jne 0x401f02
mov byte [esi], 0
inc esi
mov al, byte [esi]
cmp al, 0xa
je 0x401f14
cmp al, 0xd
je 0x401f14
cmp esi, dword [ebx + 0x14]
jb 0x401de9
jmp 0x401f67
mov eax, dword [esp + 0x20]
and dword [ebx], ebp
push esi
mov dword [ebx + 0x2c], eax
mov dword [ebx + 0x18], 0xfde9
call fcn.00409bfd
pop ecx
lea eax, [eax*2 + 2]
push eax
push 0
push dword [0x51aa3c]
call dword [sym.imp.KERNEL32.dll_HeapAlloc]
mov dword [ebx + 4], eax
test eax, eax
je 0x401f67
push esi
push eax
call fcn.00409bdb
pop ecx
pop ecx
mov eax, dword [ebx]
pop edi
pop esi
pop ebp
pop ebx
pop ecx
pop ecx
ret 0xc