Function at 0x403b80
Capabilities:
Create http request
Encode data using xor
Read data from internet
Receive data

Disassembly:
push ebx
mov ebx, esp
sub esp, 8
and esp, 0xfffffff8
add esp, 4
push ebp
mov ebp, dword [ebx + 4]
mov dword [esp + 4], ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x42bbed
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
push ebx
sub esp, 0x458
mov eax, dword fs:[0x2c]
push esi
push edi
mov edi, ecx
mov dword [ebp - 0x18], edx
mov esi, dword [eax]
mov dword [ebp - 0x28], edi
mov eax, dword [esi + 0x1f4]
test al, 1
jne 0x403c1f
movups xmm0, xmmword [0x435800]
or eax, 1
mov dword [esi + 0x54], 0
mov dword [esi + 0x1f4], eax
mov eax, dword [0x435818]
movups xmmword [ebp - 0x60], xmm0
mov dword [ebp - 0x48], eax
movq xmm0, qword [0x435810]
movq qword [ebp - 0x50], xmm0
movups xmm0, xmmword [ebp - 0x56]
mov dword [esi + 0x58], 0
mov word [esi + 0x5c], 0
movups xmmword [esi + 0x5e], xmm0
cmp byte [esi + 0x5d], 0
jne 0x403c40
xor edx, edx
nop word [eax + eax]
lea eax, [edx - 0x80]
xor byte [edx + esi + 0x5e], al
inc edx
cmp edx, 0x10
jb 0x403c30
lea eax, [esi + 0x5e]
mov byte [esi + 0x5d], 1
mov dword [ebp - 0x14], eax
mov eax, dword [esi + 0x28]
test al, 1
jne 0x403caa
movups xmm0, xmmword [0x4356b8]
or eax, 1
mov dword [esi + 0xf0], 0
mov dword [esi + 0xf4], 0
movups xmmword [ebp - 0x64], xmm0
mov word [esi + 0xf8], 0
movups xmm0, xmmword [0x4356c8]
mov dword [esi + 0x28], eax
movups xmmword [ebp - 0x54], xmm0
mov eax, dword [ebp - 0x4a]
movups xmm0, xmmword [ebp - 0x5a]
movups xmmword [esi + 0xfa], xmm0
mov dword [esi + 0x10a], eax
cmp byte [esi + 0xf9], 0
jne 0x403cc5
xor edx, edx
lea eax, [edx - 0x80]
xor byte [edx + esi + 0xfa], al
inc edx
cmp edx, 0x14
jb 0x403cb5
push 0
push 0
push 0
push 1
lea eax, [esi + 0xfa]
mov byte [esi + 0xf9], 1
push eax
call dword [sym.imp.WININET.dll_InternetOpenA]
mov edx, eax
xorps xmm0, xmm0
mov dword [ebp - 0x20], edx
test edx, edx
je 0x403d4b
xor esi, esi
mov dword [ebp - 0x2c], 0xf
movups xmmword [ebp - 0x40], xmm0
mov dword [ebp - 0x30], esi
mov byte [ebp - 0x40], 0
mov ecx, dword [ebp - 0x14]
mov dword [ebp - 4], esi
lea eax, [ecx + 1]
mov dword [ebp - 0x24], eax
nop dword [eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x403d10
mov eax, dword [ebp - 0x18]
sub ecx, dword [ebp - 0x24]
cmp dword [eax + 0x14], 0xf
jbe 0x403d25
mov eax, dword [eax]
push 0
push 0x4000000
push ecx
push dword [ebp - 0x14]
push eax
push edx
call dword [sym.imp.WININET.dll_InternetOpenUrlA]
mov dword [ebp - 0x14], eax
test eax, eax
jne 0x403d72
push dword [ebp - 0x20]
call dword [sym.imp.WININET.dll_InternetCloseHandle]
xorps xmm0, xmm0
movups xmmword [edi], xmm0
mov dword [edi + 0x10], 0
mov dword [edi + 0x14], 0
mov dword [edi + 0x10], 0
mov dword [edi + 0x14], 0xf
mov byte [edi], 0
jmp 0x403e3c
lea ecx, [ebp - 0x1c]
push ecx
push 0x400
lea ecx, [ebp - 0x468]
push ecx
push eax
call dword [sym.imp.WININET.dll_InternetReadFile]
test eax, eax
je 0x403e07
nop dword [eax]
mov edi, dword [ebp - 0x1c]
test edi, edi
je 0x403e04
mov ecx, dword [ebp - 0x2c]
mov eax, ecx
sub eax, esi
push edi
cmp edi, eax
ja 0x403dcb
lea eax, [esi + edi]
cmp ecx, 0xf
mov dword [ebp - 0x30], eax
lea eax, [ebp - 0x40]
cmova eax, dword [ebp - 0x40]
add esi, eax
lea eax, [ebp - 0x468]
push eax
push esi
call fcn.0040bd40
add esp, 0xc
mov byte [esi + edi], 0
jmp 0x403de2
lea eax, [ebp - 0x468]
mov byte [ebp - 0x18], 0
push eax
push dword [ebp - 0x18]
lea ecx, [ebp - 0x40]
push edi
call fcn.00407df0
lea eax, [ebp - 0x1c]
push eax
push 0x400
lea eax, [ebp - 0x468]
push eax
push dword [ebp - 0x14]
call dword [sym.imp.WININET.dll_InternetReadFile]
test eax, eax
je 0x403e04
mov esi, dword [ebp - 0x30]
jmp 0x403d90
mov edi, dword [ebp - 0x28]
push dword [ebp - 0x14]
mov esi, dword [sym.imp.WININET.dll_InternetCloseHandle]
call esi
push dword [ebp - 0x20]
call esi
xorps xmm0, xmm0
movups xmmword [edi], xmm0
mov dword [edi + 0x10], 0
movups xmm0, xmmword [ebp - 0x40]
mov dword [edi + 0x14], 0
movups xmmword [edi], xmm0
movq xmm0, qword [ebp - 0x30]
movq qword [edi + 0x10], xmm0
mov ecx, dword [ebp - 0xc]
mov eax, edi
pop edi
mov dword fs:[0], ecx
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret