Function at 0x4d5560
Capabilities:
Encode data using xor
Encrypt data using aes
Reference aes constants

Disassembly:
mov eax, 0x14
call fcn.00476ea0
push ebx
push ebp
push esi
push edi
mov ecx, dword [esp + 0x28]
mov eax, dword [ecx]
mov edx, eax
mov esi, dword [esp + 0x30]
rol eax, 8
and eax, 0xff00ff
ror edx, 8
and edx, 0xff00ff00
or edx, eax
mov eax, dword [ecx + 4]
xor edx, dword [esi]
mov dword [esp + 0x18], edx
mov edx, eax
rol eax, 8
and eax, 0xff00ff
ror edx, 8
and edx, 0xff00ff00
or edx, eax
mov eax, dword [ecx + 8]
xor edx, dword [esi + 4]
mov ebx, eax
rol eax, 8
and eax, 0xff00ff
ror ebx, 8
mov dword [esp + 0x10], edx
and ebx, 0xff00ff00
or ebx, eax
mov eax, dword [ecx + 0xc]
xor ebx, dword [esi + 8]
mov edx, eax
rol eax, 8
and eax, 0xff00ff
ror edx, 8
and edx, 0xff00ff00
or edx, eax
mov eax, ebx
xor edx, dword [esi + 0xc]
shr eax, 8
mov ecx, edx
shr ecx, 0x10
and eax, 0xff
and ecx, 0xff
mov edi, dword [esp + 0x18]
mov ecx, dword [ecx*4 + 0x5310c8]
xor ecx, dword [eax*4 + 0x5314c8]
mov eax, edi
shr eax, 0x18
xor ecx, dword [eax*4 + 0x530cc8]
mov eax, dword [esp + 0x10]
movzx eax, al
xor ecx, dword [eax*4 + 0x5318c8]
mov eax, edi
xor ecx, dword [esi + 0x10]
mov dword [esp + 0x14], ecx
mov ecx, edx
shr ecx, 8
shr eax, 0x10
and ecx, 0xff
and eax, 0xff
mov ebp, dword [ecx*4 + 0x5314c8]
xor ebp, dword [eax*4 + 0x5310c8]
mov ecx, dword [esp + 0x10]
mov eax, ecx
shr eax, 0x18
shr ecx, 0x10
and ecx, 0xff
xor ebp, dword [eax*4 + 0x530cc8]
movzx eax, bl
mov ecx, dword [ecx*4 + 0x5310c8]
xor ebp, dword [eax*4 + 0x5318c8]
mov eax, edi
xor ebp, dword [esi + 0x14]
shr eax, 8
mov dword [esp + 0x28], ebp
and eax, 0xff
xor ecx, dword [eax*4 + 0x5314c8]
mov eax, ebx
shr eax, 0x18
shr ebx, 0x10
and ebx, 0xff
xor ecx, dword [eax*4 + 0x530cc8]
movzx eax, dl
shr edx, 0x18
xor ecx, dword [eax*4 + 0x5318c8]
xor ecx, dword [esi + 0x18]
mov eax, dword [esp + 0x10]
shr eax, 8
and eax, 0xff
mov dword [esp + 0x30], ecx
mov ecx, dword [ebx*4 + 0x5310c8]
xor ecx, dword [eax*4 + 0x5314c8]
mov eax, edi
xor ecx, dword [edx*4 + 0x530cc8]
lea edi, [esi + 0x20]
movzx eax, al
xor ecx, dword [eax*4 + 0x5318c8]
mov eax, dword [esi + 0xf0]
xor ecx, dword [esi + 0x1c]
sar eax, 1
dec eax
mov dword [esp + 0x10], ecx
mov dword [esp + 0x20], eax
je 0x4d5943
jmp 0x4d5710
mov ebx, dword [esp + 0x30]
mov eax, ebx
shr ecx, 0x10
mov esi, dword [esp + 0x14]
and ecx, 0xff
shr eax, 8
and eax, 0xff
mov edx, dword [esp + 0x28]
mov ecx, dword [ecx*4 + 0x5310c8]
xor ecx, dword [eax*4 + 0x5314c8]
mov eax, esi
shr eax, 0x18
xor ecx, dword [eax*4 + 0x530cc8]
movzx eax, dl
xor ecx, dword [eax*4 + 0x5318c8]
mov eax, esi
xor ecx, dword [edi]
mov dword [esp + 0x1c], ecx
mov ecx, dword [esp + 0x10]
shr ecx, 8
shr eax, 0x10
and ecx, 0xff
and eax, 0xff
mov ecx, dword [ecx*4 + 0x5314c8]
xor ecx, dword [eax*4 + 0x5310c8]
mov eax, edx
shr eax, 0x18
xor ecx, dword [eax*4 + 0x530cc8]
movzx eax, bl
xor ecx, dword [eax*4 + 0x5318c8]
mov eax, esi
xor ecx, dword [edi + 4]
mov dword [esp + 0x18], ecx
mov ecx, edx
shr eax, 8
shr ecx, 0x10
and eax, 0xff
and ecx, 0xff
shr edx, 8
and edx, 0xff
mov dword [esp + 0x28], edx
mov ebp, dword [esp + 0x28]
mov ebx, dword [ecx*4 + 0x5310c8]
xor ebx, dword [eax*4 + 0x5314c8]
mov ecx, dword [esp + 0x30]
mov eax, ecx
shr eax, 0x18
shr ecx, 0x10
and ecx, 0xff
xor ebx, dword [eax*4 + 0x530cc8]
mov eax, dword [esp + 0x10]
mov edx, dword [ecx*4 + 0x5310c8]
xor edx, dword [ebp*4 + 0x5314c8]
movzx eax, al
xor ebx, dword [eax*4 + 0x5318c8]
mov eax, dword [esp + 0x10]
xor ebx, dword [edi + 8]
shr eax, 0x18
xor edx, dword [eax*4 + 0x530cc8]
mov eax, esi
mov esi, dword [esp + 0x1c]
movzx eax, al
xor edx, dword [eax*4 + 0x5318c8]
mov eax, ebx
xor edx, dword [edi + 0xc]
shr eax, 8
mov ecx, edx
shr ecx, 0x10
and eax, 0xff
and ecx, 0xff
mov ecx, dword [ecx*4 + 0x5310c8]
xor ecx, dword [eax*4 + 0x5314c8]
mov eax, esi
shr eax, 0x18
xor ecx, dword [eax*4 + 0x530cc8]
mov eax, dword [esp + 0x18]
movzx eax, al
xor ecx, dword [eax*4 + 0x5318c8]
xor ecx, dword [edi + 0x10]
mov dword [esp + 0x14], ecx
mov ecx, edx
shr ecx, 8
mov eax, esi
and ecx, 0xff
shr eax, 0x10
and eax, 0xff
mov ecx, dword [ecx*4 + 0x5314c8]
xor ecx, dword [eax*4 + 0x5310c8]
mov dword [esp + 0x28], ecx
mov ecx, dword [esp + 0x18]
mov eax, ecx
mov ebp, dword [esp + 0x28]
shr eax, 0x18
shr ecx, 0x10
and ecx, 0xff
xor ebp, dword [eax*4 + 0x530cc8]
movzx eax, bl
mov ecx, dword [ecx*4 + 0x5310c8]
xor ebp, dword [eax*4 + 0x5318c8]
mov eax, esi
shr eax, 8
and eax, 0xff
xor ebp, dword [edi + 0x14]
mov dword [esp + 0x28], ebp
xor ecx, dword [eax*4 + 0x5314c8]
mov eax, ebx
shr eax, 0x18
shr ebx, 0x10
and ebx, 0xff
xor ecx, dword [eax*4 + 0x530cc8]
movzx eax, dl
shr edx, 0x18
xor ecx, dword [eax*4 + 0x5318c8]
xor ecx, dword [edi + 0x18]
mov eax, dword [esp + 0x18]
shr eax, 8
and eax, 0xff
mov dword [esp + 0x30], ecx
mov ecx, dword [ebx*4 + 0x5310c8]
xor ecx, dword [eax*4 + 0x5314c8]
mov eax, esi
xor ecx, dword [edx*4 + 0x530cc8]
movzx eax, al
xor ecx, dword [eax*4 + 0x5318c8]
xor ecx, dword [edi + 0x1c]
add edi, 0x20
dec dword [esp + 0x20]
mov dword [esp + 0x10], ecx
jne 0x4d5710
mov eax, ecx
mov ebx, dword [esp + 0x28]
shr eax, 0x10
and eax, 0xff
mov edx, dword [esp + 0x2c]
movzx ecx, byte [eax + 0x531cc8]
mov eax, dword [esp + 0x14]
shr eax, 0x18
movzx eax, byte [eax + 0x531cc8]
shl eax, 8
xor ecx, eax
mov eax, dword [esp + 0x30]
shr eax, 8
and eax, 0xff
shl ecx, 8
movzx eax, byte [eax + 0x531cc8]
xor ecx, eax
movzx eax, bl
shl ecx, 8
movzx eax, byte [eax + 0x531cc8]
xor ecx, eax
xor ecx, dword [edi]
mov eax, ecx
rol ecx, 8
ror eax, 8
and ecx, 0xff00ff
and eax, 0xff00ff00
or eax, ecx
mov dword [edx], eax
mov eax, dword [esp + 0x14]
shr eax, 0x10
and eax, 0xff
movzx ecx, byte [eax + 0x531cc8]
mov eax, ebx
shr eax, 0x18
movzx eax, byte [eax + 0x531cc8]
shl eax, 8
xor ecx, eax
mov eax, dword [esp + 0x10]
shr eax, 8
and eax, 0xff
shl ecx, 8
movzx eax, byte [eax + 0x531cc8]
xor ecx, eax
mov eax, dword [esp + 0x30]
movzx eax, al
shl ecx, 8
movzx eax, byte [eax + 0x531cc8]
xor ecx, eax
xor ecx, dword [edi + 4]
mov eax, ecx
rol ecx, 8
ror eax, 8
and ecx, 0xff00ff
and eax, 0xff00ff00
or eax, ecx
mov dword [edx + 4], eax
mov eax, ebx
shr eax, 0x10
and eax, 0xff
movzx ecx, byte [eax + 0x531cc8]
mov eax, dword [esp + 0x30]
shr eax, 0x18
movzx eax, byte [eax + 0x531cc8]
shl eax, 8
xor ecx, eax
mov eax, dword [esp + 0x14]
shr eax, 8
and eax, 0xff
shl ecx, 8
movzx eax, byte [eax + 0x531cc8]
xor ecx, eax
mov eax, dword [esp + 0x10]
movzx eax, al
shl ecx, 8
movzx eax, byte [eax + 0x531cc8]
xor ecx, eax
xor ecx, dword [edi + 8]
mov eax, ecx
ror eax, 8
and eax, 0xff00ff00
rol ecx, 8
and ecx, 0xff00ff
shr ebx, 8
or eax, ecx
and ebx, 0xff
mov dword [edx + 8], eax
mov eax, dword [esp + 0x30]
shr eax, 0x10
and eax, 0xff
movzx ecx, byte [eax + 0x531cc8]
mov eax, dword [esp + 0x10]
shr eax, 0x18
movzx eax, byte [eax + 0x531cc8]
shl eax, 8
xor ecx, eax
movzx eax, byte [ebx + 0x531cc8]
shl ecx, 8
xor ecx, eax
mov eax, dword [esp + 0x14]
movzx eax, al
shl ecx, 8
movzx eax, byte [eax + 0x531cc8]
xor ecx, eax
xor ecx, dword [edi + 0xc]
mov eax, ecx
rol ecx, 8
pop edi
ror eax, 8
and ecx, 0xff00ff
pop esi
and eax, 0xff00ff00
or eax, ecx
pop ebp
mov dword [edx + 0xc], eax
pop ebx
add esp, 0x14
ret