Function at 0x43c6b0
Capabilities:
Get file size
Read file on windows

Disassembly:
push ebp
mov ebp, esp
and esp, 0xfffffff8
sub esp, 0x2c
push ebx
push esi
mov esi, dword [ebp + 8]
mov eax, dword [esi + 0xc]
mov ecx, dword [esi + 8]
push edi
xor edi, edi
lea edx, [eax + 0x10]
mov dword [esp + 0x1c], edi
cmp edx, ecx
jae 0x43c6da
cmp edx, 0x492970
jne 0x43c6e3
or ebx, 0xffffffff
mov dword [esp + 0xc], ebx
jmp 0x43c6ec
mov edx, dword [edx + 8]
mov dword [esp + 0xc], edx
mov ebx, edx
add eax, 0x20
cmp eax, ecx
jae 0x43c79c
cmp eax, 0x492970
je 0x43c78c
mov edx, dword [eax + 8]
cmp edx, 3
jne 0x43c76a
cmp eax, ecx
jb 0x43c713
mov eax, 0x492970
mov ecx, dword [eax + 8]
cmp ecx, 3
je 0x43c746
cmp ecx, 4
jne 0x43c75f
mov eax, dword [eax]
add eax, 0x10
lea edi, [esp + 0x10]
call fcn.004417f0
test eax, eax
je 0x43c75f
fld qword [esp + 0x10]
mov dword [esp + 0x30], 3
fstp qword [esp + 0x28]
lea eax, [esp + 0x28]
fld qword [eax]
fadd qword [0x496bd8]
fstp qword [esp + 0x20]
mov eax, dword [esp + 0x20]
movzx eax, ax
mov dword [esp + 0x10], eax
jmp 0x43c7d2
xor eax, eax
movzx eax, ax
mov dword [esp + 0x10], eax
jmp 0x43c7d2
cmp edx, 2
jne 0x43c78c
cmp eax, ecx
jb 0x43c778
mov eax, 0x492970
cmp dword [eax + 8], 2
jne 0x43c786
mov ecx, dword [eax]
mov dword [esp + 0x10], ecx
jmp 0x43c7d2
mov dword [esp + 0x10], edi
jmp 0x43c7d2
cmp eax, ecx
jae 0x43c79c
cmp eax, 0x492970
je 0x43c79c
cmp dword [eax + 8], edi
jg 0x43c7a6
mov dword [esp + 0x10], 0x494db8
jmp 0x43c7d2
push 3
xor ebx, ebx
mov eax, esi
call fcn.0041e080
mov ebx, eax
add esp, 4
test ebx, ebx
jne 0x43c7ca
push 0x491fc4
lea edi, [eax + 3]
call fcn.00420c20
add esp, 4
mov dword [esp + 0x10], ebx
mov ebx, dword [esp + 0xc]
cmp ebx, 4
jne 0x43c9c1
mov eax, dword [esi + 0xc]
add eax, 0x10
cmp eax, dword [esi + 8]
jb 0x43c7eb
mov eax, 0x492970
mov ecx, dword [eax + 8]
cmp ecx, 4
je 0x43c83e
cmp ecx, 7
jne 0x43c805
mov ecx, dword [eax]
cmp dword [ecx + 8], 0
jne 0x43c805
lea edi, [ecx + 0x18]
jmp 0x43c843
mov edi, dword [ebp + 8]
mov esi, eax
call fcn.00431f20
test eax, eax
jne 0x43c81a
mov esi, dword [ebp + 8]
xor edi, edi
jmp 0x43c843
mov eax, dword [edi + 0x10]
mov edx, dword [eax + 0x44]
cmp edx, dword [eax + 0x40]
jb 0x43c82c
mov eax, edi
call fcn.00431cf0
mov eax, dword [edi + 0xc]
add eax, 0x10
mov esi, edi
cmp eax, dword [edi + 8]
jb 0x43c83e
mov eax, 0x492970
mov edi, dword [eax]
add edi, 0x10
mov eax, dword [esi + 8]
mov ecx, dword [esi + 0xc]
mov edx, eax
sub edx, ecx
and edx, 0xfffffff0
cmp edx, 0x20
jne 0x43c9b2
add ecx, 0x10
cmp ecx, eax
jb 0x43c865
mov ecx, 0x492970
mov edx, dword [ecx]
mov dword [eax], edx
mov edx, dword [ecx + 4]
mov dword [eax + 4], edx
mov ecx, dword [ecx + 8]
mov dword [eax + 8], ecx
add dword [esi + 8], 0x10
lea esp, [esp]
or ebx, 0xffffffff
mov eax, esi
call fcn.004201f0
push 0
push 0x8000080
push 3
push 0
push 3
push SysReAllocStringLen
push eax
call dword [sym.imp.KERNEL32.DLL_CreateFileW]
add dword [esi + 8], 0xfffffff0
mov ebx, eax
test ebx, ebx
je 0x43c8b2
cmp ebx, 0xffffffff
jne 0x43c8d2
cmp byte [edi], 0x7e
jne 0x43c9b2
cmp byte [edi + 1], 0
je 0x43c9b2
inc edi
mov ebx, edi
call fcn.0041e2b0
mov esi, dword [ebp + 8]
jmp 0x43c880
push 0
push ebx
call dword [sym.imp.KERNEL32.DLL_GetFileSize]
cmp dword [ebp + 0xc], 0
mov dword [esp + 0x1c], eax
mov dword [esp + 0xc], 0
jne 0x43c8fc
mov edx, eax
push edx
call fcn.0046aa8c
add esp, 4
mov edi, eax
jmp 0x43c929
mov edi, dword [esp + 0x1c]
call fcn.0041eef0
test eax, eax
jne 0x43c910
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov eax, dword [ebp + 8]
mov eax, dword [eax + 8]
cmp dword [eax - 8], 7
mov esi, dword [ebp + 8]
jne 0x43c927
mov edi, dword [eax - 0x10]
add edi, 0x18
jmp 0x43c929
xor edi, edi
mov edx, dword [esp + 0x1c]
push 0
lea ecx, [esp + 0x10]
push ecx
push edx
push edi
push ebx
call dword [sym.imp.KERNEL32.DLL_ReadFile]
test eax, eax
je 0x43c989
cmp dword [ebp + 0xc], 0
jne 0x43c97f
mov eax, dword [esp + 0xc]
cmp eax, 2
jb 0x43c975
test al, 1
jne 0x43c975
cmp byte [edi], 0xff
jne 0x43c975
cmp byte [edi + 1], 0xfe
jne 0x43c975
shr eax, 1
push eax
push edi
call fcn.0041e200
add esp, 8
mov dword [esp + 0xc], 1
jmp 0x43c991
push eax
push edi
call fcn.0041e1c0
add esp, 8
mov dword [esp + 0xc], 1
jmp 0x43c991
mov dword [esp + 0xc], 0
cmp dword [ebp + 0xc], 0
jne 0x43c9a0
push edi
call fcn.0046aa52
add esp, 4
push ebx
call dword [sym.imp.KERNEL32.DLL_CloseHandle]
mov eax, dword [esp + 0xc]
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov edx, edi
mov ecx, esi
call fcn.00421d60
mov dword [esp + 0x1c], eax
jmp 0x43ca1c
cmp ebx, 3
jne 0x43c9da
push 2
push esi
call fcn.0041dd10
movzx eax, ax
add esp, 8
mov dword [esp + 0x1c], eax
jmp 0x43ca1c
cmp ebx, 2
jne 0x43ca07
mov eax, dword [esi + 0xc]
add eax, 0x10
cmp eax, dword [esi + 8]
jb 0x43c9ef
mov eax, 0x492970
cmp dword [eax + 8], 2
jne 0x43c9fd
mov ecx, dword [eax]
mov dword [esp + 0x1c], ecx
jmp 0x43ca1c
mov dword [esp + 0x1c], 0
jmp 0x43ca1c
push 0x491fc4
mov edi, 2
call fcn.00420c20
mov esi, dword [ebp + 8]
add esp, 4
mov eax, dword [esi + 0xc]
mov ecx, dword [esi + 8]
add eax, 0x30
cmp eax, ecx
jae 0x43ca36
cmp eax, 0x492970
je 0x43ca36
cmp dword [eax + 8], 0
jg 0x43ca3a
xor eax, eax
jmp 0x43ca68
cmp eax, ecx
jb 0x43ca43
mov eax, 0x492970
cmp dword [eax + 8], 2
jne 0x43ca8e
mov ebx, dword [eax]
test ebx, ebx
jne 0x43ca66
mov edx, dword [0x4928e4]
push edx
mov edi, 4
call fcn.00420c20
mov esi, dword [ebp + 8]
add esp, 4
mov eax, ebx
mov ecx, dword [ebp + 0xc]
mov edx, dword [esp + 0x10]
push ecx
mov ecx, dword [esp + 0x20]
push edx
push ecx
push esi
call fcn.0041fe40
add esp, 0x10
xor edx, edx
cmp edx, eax
pop edi
sbb eax, eax
pop esi
neg eax
pop ebx
mov esp, ebp
pop ebp
ret
xor ebx, ebx
jmp 0x43ca4f