Function at 0x43fc30
Capabilities:
Get file size
Read file on windows

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x46d1e8
mov eax, dword fs:[0]
push eax
sub esp, 0x90
mov eax, dword [0x4825c0]
xor eax, ebp
mov dword [ebp - 0x10], eax
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov dword [ebp - 0x90], ecx
mov ecx, dword [ebp + 8]
mov eax, dword [ebp + 0x10]
mov dword [ebp - 0x94], eax
mov byte [ebp - 0x89], 0
cmp dword [ecx + 0x14], 7
jbe 0x43fc7e
mov ecx, dword [ecx]
push 0
push 0
push 3
push 0
push 1
push 0x80000000
push ecx
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov dword [ebp - 0x98], eax
cmp eax, 0xffffffff
je 0x43ff6d
push 0
push eax
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov edi, eax
cmp edi, 0xffffffff
je 0x43ff61
lea eax, [edi + 1]
push eax
push 0x40
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov esi, eax
test esi, esi
je 0x43ff61
cmp byte [0x484bf4], 0
lea eax, [ebp - 0x9c]
push 0
push eax
push edi
push esi
push dword [ebp - 0x98]
je 0x43fe73
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x43fe50
push esi
lea ecx, [ebp - 0x58]
call fcn.00405040
cmp byte [ebp + 0xc], 0
mov byte [esi + edi], 0
mov edi, dword [ebp - 0x94]
mov dword [ebp - 4], 0
je 0x43fd29
push dword [edi]
lea eax, [ebp - 0x58]
push eax
call fcn.0043f580
add esp, 8
mov dword [edi], eax
xorps xmm0, xmm0
mov dword [ebp - 0x18], 0
xor eax, eax
mov dword [ebp - 0x14], 7
movups xmmword [ebp - 0x28], xmm0
mov word [ebp - 0x28], ax
mov eax, dword [edi]
mov byte [ebp - 4], 1
cmp eax, 0x9c7d
je 0x43fd99
push eax
lea eax, [ebp - 0x58]
push eax
lea eax, [ebp - 0x40]
push eax
call fcn.00445a20
add esp, 0xc
lea ecx, [ebp - 0x28]
push eax
call fcn.004019c0
lea ecx, [ebp - 0x40]
call fcn.00401940
push 0x9c7d
lea eax, [ebp - 0x28]
push eax
lea eax, [ebp - 0x40]
push eax
call fcn.0043e6b0
add esp, 0xc
lea ecx, [ebp - 0x58]
push eax
call fcn.00411dd0
lea ecx, [ebp - 0x40]
call fcn.004018f0
lea eax, [ebp - 0x58]
push eax
lea eax, [ebp - 0x40]
push eax
call fcn.00444eb0
add esp, 8
lea ecx, [ebp - 0x28]
push eax
call fcn.004019c0
lea ecx, [ebp - 0x40]
call fcn.00401940
cmp dword [ebp - 0x14], 7
lea eax, [ebp - 0x28]
lea ecx, [ebp - 0x70]
cmova eax, dword [ebp - 0x28]
push eax
call fcn.00401760
mov edi, dword [ebp - 0x90]
lea eax, [ebp - 0x70]
push 0
push eax
push 0
push 0
mov ecx, edi
mov byte [ebp - 4], 2
call fcn.00444420
lea ecx, [ebp - 0x70]
call fcn.00401940
mov ecx, dword [ebp - 0x14]
mov byte [ebp - 0x89], 1
cmp ecx, 7
jbe 0x43fe32
mov edx, dword [ebp - 0x28]
lea ecx, [ecx*2 + 2]
mov eax, edx
cmp ecx, 0x1000
jb 0x43fe28
mov edx, dword [eax - 4]
add ecx, 0x23
sub eax, edx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x43ff90
push ecx
push edx
call fcn.00448427
add esp, 8
xor eax, eax
mov dword [ebp - 0x18], 0
lea ecx, [ebp - 0x58]
mov dword [ebp - 0x14], 7
mov word [ebp - 0x28], ax
call fcn.004018f0
jmp 0x43fe56
mov edi, dword [ebp - 0x90]
mov ecx, edi
call fcn.0043ee40
push 0
push eax
push 0x7e9
push dword [edi + 0x68]
call dword [sym.imp.USER32.dll_SendMessageW]
jmp 0x43ff5a
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x43ff5a
push esi
lea ecx, [ebp - 0x70]
call fcn.00405040
cmp byte [ebp + 0xc], 0
mov byte [esi + edi], 0
mov edi, dword [ebp - 0x94]
mov dword [ebp - 4], 3
mov eax, dword [edi]
push eax
lea eax, [ebp - 0x70]
push eax
je 0x43fefb
call fcn.0043f580
push eax
mov dword [edi], eax
lea eax, [ebp - 0x70]
push eax
lea eax, [ebp - 0x40]
push eax
call fcn.00445a20
add esp, 0x14
cmp dword [eax + 0x14], 7
mov byte [ebp - 4], 4
jbe 0x43fecc
mov eax, dword [eax]
push eax
lea ecx, [ebp - 0x58]
call fcn.00401760
mov ecx, dword [ebp - 0x90]
lea eax, [ebp - 0x58]
push 0
push eax
push 0
push 0
mov byte [ebp - 4], 5
call fcn.00444420
lea ecx, [ebp - 0x58]
call fcn.00401940
lea ecx, [ebp - 0x40]
jmp 0x43ff46
lea eax, [ebp - 0x88]
push eax
call fcn.00445a20
add esp, 0xc
cmp dword [eax + 0x14], 7
mov byte [ebp - 4], 6
jbe 0x43ff16
mov eax, dword [eax]
push eax
lea ecx, [ebp - 0x40]
call fcn.00401760
mov ecx, dword [ebp - 0x90]
lea eax, [ebp - 0x40]
push 0
push eax
push 0
push 0
mov byte [ebp - 4], 7
call fcn.00444420
lea ecx, [ebp - 0x40]
call fcn.00401940
lea ecx, [ebp - 0x88]
call fcn.00401940
lea ecx, [ebp - 0x70]
mov byte [ebp - 0x89], 1
call fcn.004018f0
push esi
call dword [sym.imp.KERNEL32.dll_GlobalFree]
push dword [ebp - 0x98]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov al, byte [ebp - 0x89]
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.00448686
mov esp, ebp
pop ebp
ret 0xc
call fcn.0044d0af
int3