Function at 0x497530
Capabilities:
Check if file exists
Download and write a file
Read data from internet
Receive and write data from server to client
Receive data
Write file on windows

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x5da820
mov eax, dword fs:[0]
push eax
sub esp, 0x78
mov eax, dword [0x6639c4]
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 esi, edx
mov dword [ebp - 0x5c], esi
mov eax, ecx
mov dword [ebp - 0x6c], eax
mov edi, dword [ebp + 8]
mov ecx, dword [ebp + 0x10]
mov dword [ebp - 0x58], edi
mov dword [ebp - 0x68], ecx
test eax, eax
je 0x4977fc
test esi, esi
je 0x4977fc
test edi, edi
je 0x4977fc
push 0x66c0e4
push 0x100
call fcn.0058bae3
xor ebx, ebx
mov dword [ebp - 0x78], vtable.CxAutoArray_unsigned_char_.0
add esp, 8
mov dword [ebp - 0x74], ebx
test eax, eax
je 0x4975b7
mov ebx, eax
mov dword [ebp - 0x70], 0
mov dword [ebp - 0x74], ebx
lea eax, [ebp - 0x38]
mov dword [ebp - 4], 0
push eax
push 0
push edi
call dword [sym.imp.KERNEL32.dll_GetFileAttributesExW]
test eax, eax
je 0x4975dd
mov eax, dword [ebp - 0x18]
mov dword [ebp - 0x44], eax
mov eax, dword [ebp - 0x1c]
mov dword [ebp - 0x48], eax
jmp 0x4975f1
xorps xmm0, xmm0
movlpd qword [ebp - 0x54], xmm0
mov eax, dword [ebp - 0x50]
mov dword [ebp - 0x48], eax
mov eax, dword [ebp - 0x54]
mov dword [ebp - 0x44], eax
push edi
lea ecx, [ebp - 0x3c]
call fcn.004064d0
lea edx, [ebp - 0x3c]
mov byte [ebp - 4], 1
lea ecx, [ebp - 0x4c]
call fcn.0046d7f0
mov byte [ebp - 4], 3
or eax, 0xffffffff
mov edx, dword [ebp - 0x3c]
add edx, 0xfffffff0
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x497628
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
push dword [ebp - 0x4c]
call dword [sym.imp.SHLWAPI.dll_PathFileExistsW]
test eax, eax
jne 0x49763f
push dword [ebp - 0x4c]
push eax
call dword [sym.imp.SHELL32.dll_SHCreateDirectory]
xor edi, edi
mov dword [ebp - 0x80], edi
mov dword [ebp - 0x7c], edi
push edi
push 0x80
push 4
push edi
push 2
push 0x40000000
push dword [ebp - 0x58]
mov byte [ebp - 4], 4
call dword [sym.imp.KERNEL32.dll_CreateFileW]
cmp eax, 0xffffffff
jne 0x4976ad
call fcn.00410400
test eax, eax
jns 0x4976b2
xor esi, esi
test edi, edi
je 0x49767f
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov byte [ebp - 4], 0
or ecx, 0xffffffff
mov eax, dword [ebp - 0x4c]
add eax, 0xfffffff0
lock xadd dword [eax + 0xc], ecx
dec ecx
test ecx, ecx
jg 0x49769e
mov ecx, dword [eax]
push eax
mov edx, dword [ecx]
call dword [edx + 4]
lea ecx, [ebp - 0x78]
call fcn.0041e6a0
mov eax, esi
jmp 0x4977fe
mov edi, eax
mov dword [ebp - 0x80], edi
push 2
lea eax, [ebp - 0x50]
xorps xmm0, xmm0
push eax
push 0
push edi
movlpd qword [ebp - 0x54], xmm0
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
cmp eax, 0xffffffff
jne 0x4976d3
call fcn.00410400
push 5
lea eax, [ebp - 0x3c]
mov ecx, esi
push eax
call fcn.00482260
mov esi, dword [ebp - 0x3c]
push 0xa
push 0
push esi
call fcn.005b6bf2
add esp, 0xc
mov dword [ebp - 0x64], eax
mov dword [ebp - 0x60], edx
add esi, 0xfffffff0
or ecx, 0xffffffff
lock xadd dword [esi + 0xc], ecx
dec ecx
test ecx, ecx
jg 0x49770e
mov ecx, dword [esi]
push esi
mov eax, dword [ecx]
call dword [eax + 4]
call dword [sym.imp.KERNEL32.dll_GetTickCount]
mov esi, dword [ebp - 0x5c]
lea ecx, [ebp - 0x40]
push ecx
push 0x100
push ebx
mov eax, dword [esi + 0x10]
mov dword [ebp - 0x40], 0
mov dword [ebp - 0x3c], 0
mov dword [ebp - 0x50], 0
push dword [eax]
call dword [sym.imp.WININET.dll_InternetReadFile]
test eax, eax
je 0x497672
nop dword [eax]
mov eax, dword [ebp - 0x40]
test eax, eax
je 0x4977f2
push 0
lea ecx, [ebp - 0x3c]
push ecx
push eax
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_WriteFile]
test eax, eax
jne 0x49777b
call fcn.00410400
test eax, eax
js 0x497672
mov eax, dword [ebp - 0x40]
cmp dword [ebp - 0x3c], eax
jne 0x497672
mov ecx, dword [ebp - 0x44]
mov edx, dword [ebp - 0x48]
add ecx, eax
push eax
adc edx, 0
mov dword [ebp - 0x44], ecx
push edx
push ecx
push dword [ebp - 0x60]
mov dword [ebp - 0x48], edx
push dword [ebp - 0x64]
push dword [ebp - 0x58]
push dword [ebp - 0x68]
push esi
push dword [ebp - 0x6c]
call fcn.00484370
add esp, 0x24
test eax, eax
je 0x497672
mov eax, dword [esi + 0x10]
lea ecx, [ebp - 0x40]
push ecx
push 0x100
push ebx
mov dword [ebp - 0x40], 0
mov dword [ebp - 0x3c], 0
mov dword [ebp - 0x50], 0
push dword [eax]
call dword [sym.imp.WININET.dll_InternetReadFile]
test eax, eax
jne 0x497750
jmp 0x497672
mov esi, 1
jmp 0x497674
xor eax, eax
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.0058b4aa
mov esp, ebp
pop ebp
ret