Function at 0x401790
Capabilities:
Encode data using add xor sub operations
Encode data using xor
Encrypt data using aes
Reference aes constants

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x20
movzx eax, byte [ecx + 1]
mov dword [ebp - 0x20], edx
movzx edx, byte [ecx]
shl edx, 8
xor edx, eax
movzx eax, byte [ecx + 2]
shl edx, 8
xor edx, eax
movzx eax, byte [ecx + 3]
shl edx, 8
xor edx, eax
movzx eax, byte [ecx + 5]
push ebx
movzx ebx, byte [ecx + 8]
push esi
mov esi, dword [ebp + 8]
shl ebx, 8
push edi
xor edx, dword [esi]
mov dword [ebp - 0x14], edx
movzx edx, byte [ecx + 4]
shl edx, 8
xor edx, eax
mov edi, dword [ebp - 0x14]
movzx eax, byte [ecx + 6]
shl edx, 8
xor edx, eax
movzx eax, byte [ecx + 7]
shl edx, 8
xor edx, eax
movzx eax, byte [ecx + 9]
xor edx, dword [esi + 4]
xor ebx, eax
movzx eax, byte [ecx + 0xa]
mov dword [ebp - 0x10], edx
movzx edx, byte [ecx + 0xc]
shl ebx, 8
xor ebx, eax
shl edx, 8
movzx eax, byte [ecx + 0xb]
shl ebx, 8
xor ebx, eax
movzx eax, byte [ecx + 0xd]
xor edx, eax
xor ebx, dword [esi + 8]
movzx eax, byte [ecx + 0xe]
shl edx, 8
xor edx, eax
movzx eax, byte [ecx + 0xf]
shl edx, 8
xor edx, eax
xor edx, dword [esi + 0xc]
mov eax, edx
shr eax, 0x10
movzx ecx, al
mov eax, ebx
shr eax, 8
movzx eax, al
mov ecx, dword [ecx*4 + 0x4b1400]
xor ecx, dword [eax*4 + 0x4b1000]
mov eax, edi
shr eax, 0x18
xor ecx, dword [eax*4 + 0x4b1800]
mov eax, dword [ebp - 0x10]
movzx eax, al
xor ecx, dword [eax*4 + 0x4b0c00]
mov eax, edx
xor ecx, dword [esi + 0x10]
shr eax, 8
mov dword [ebp - 8], ecx
movzx ecx, al
mov eax, edi
shr eax, 0x10
movzx eax, al
mov ecx, dword [ecx*4 + 0x4b1000]
xor ecx, dword [eax*4 + 0x4b1400]
mov eax, dword [ebp - 0x10]
mov esi, ecx
shr eax, 0x18
mov dword [ebp - 4], ecx
xor esi, dword [eax*4 + 0x4b1800]
movzx eax, bl
xor esi, dword [eax*4 + 0x4b0c00]
mov dword [ebp - 4], esi
mov esi, dword [ebp + 8]
mov eax, dword [ebp - 4]
xor eax, dword [esi + 0x14]
mov dword [ebp - 4], eax
mov eax, dword [ebp - 0x10]
shr eax, 0x10
movzx ecx, al
mov eax, edi
shr eax, 8
movzx eax, al
mov ecx, dword [ecx*4 + 0x4b1400]
xor ecx, dword [eax*4 + 0x4b1000]
mov eax, ebx
shr eax, 0x18
shr ebx, 0x10
xor ecx, dword [eax*4 + 0x4b1800]
movzx eax, dl
shr edx, 0x18
xor ecx, dword [eax*4 + 0x4b0c00]
xor ecx, dword [esi + 0x18]
mov eax, dword [ebp - 0x10]
mov dword [ebp - 0xc], ecx
shr eax, 8
movzx eax, al
movzx ecx, bl
mov ecx, dword [ecx*4 + 0x4b1400]
xor ecx, dword [eax*4 + 0x4b1000]
mov eax, edi
xor ecx, dword [edx*4 + 0x4b1800]
lea edi, [esi + 0x20]
movzx eax, al
mov dword [ebp - 0x14], edi
xor ecx, dword [eax*4 + 0x4b0c00]
mov eax, dword [esi + 0xf0]
xor ecx, dword [esi + 0x1c]
sar eax, 1
sub eax, 1
mov dword [ebp + 8], ecx
mov dword [ebp - 0x1c], eax
je 0x401b3c
mov ebx, dword [ebp - 0xc]
mov eax, ecx
shr eax, 0x10
movzx ecx, al
mov eax, ebx
shr eax, 8
movzx eax, al
mov esi, dword [ebp - 8]
mov ecx, dword [ecx*4 + 0x4b1400]
mov edx, dword [ebp - 4]
xor ecx, dword [eax*4 + 0x4b1000]
mov eax, esi
shr eax, 0x18
xor ecx, dword [eax*4 + 0x4b1800]
movzx eax, dl
xor ecx, dword [eax*4 + 0x4b0c00]
xor ecx, dword [edi]
mov eax, dword [ebp + 8]
shr eax, 8
mov dword [ebp - 0x18], ecx
movzx ecx, al
mov eax, esi
shr eax, 0x10
movzx eax, al
mov ecx, dword [ecx*4 + 0x4b1000]
xor ecx, dword [eax*4 + 0x4b1400]
mov eax, edx
shr eax, 0x18
xor ecx, dword [eax*4 + 0x4b1800]
movzx eax, bl
xor ecx, dword [eax*4 + 0x4b0c00]
mov eax, edx
xor ecx, dword [edi + 4]
shr eax, 0x10
mov dword [ebp - 0x10], ecx
movzx ecx, al
mov eax, esi
shr eax, 8
movzx eax, al
shr edx, 8
mov ebx, dword [ecx*4 + 0x4b1400]
mov ecx, dword [ebp - 0xc]
xor ebx, dword [eax*4 + 0x4b1000]
mov eax, ecx
shr eax, 0x18
shr ecx, 0x10
movzx ecx, cl
xor ebx, dword [eax*4 + 0x4b1800]
mov eax, dword [ebp + 8]
movzx eax, al
xor ebx, dword [eax*4 + 0x4b0c00]
xor ebx, dword [edi + 8]
movzx eax, dl
mov edx, dword [ecx*4 + 0x4b1400]
xor edx, dword [eax*4 + 0x4b1000]
mov eax, dword [ebp + 8]
shr eax, 0x18
xor edx, dword [eax*4 + 0x4b1800]
mov eax, esi
movzx eax, al
mov esi, dword [ebp - 0x18]
xor edx, dword [eax*4 + 0x4b0c00]
xor edx, dword [edi + 0xc]
mov eax, edx
shr eax, 0x10
movzx ecx, al
mov eax, ebx
shr eax, 8
movzx eax, al
mov ecx, dword [ecx*4 + 0x4b1400]
xor ecx, dword [eax*4 + 0x4b1000]
mov eax, esi
shr eax, 0x18
xor ecx, dword [eax*4 + 0x4b1800]
mov eax, dword [ebp - 0x10]
movzx eax, al
xor ecx, dword [eax*4 + 0x4b0c00]
mov eax, edx
xor ecx, dword [edi + 0x10]
mov dword [ebp - 8], ecx
shr eax, 8
movzx ecx, al
mov eax, esi
shr eax, 0x10
movzx eax, al
mov ecx, dword [ecx*4 + 0x4b1000]
xor ecx, dword [eax*4 + 0x4b1400]
mov eax, dword [ebp - 0x10]
mov edi, ecx
shr eax, 0x18
mov dword [ebp - 4], ecx
xor edi, dword [eax*4 + 0x4b1800]
movzx eax, bl
xor edi, dword [eax*4 + 0x4b0c00]
mov eax, dword [ebp - 0x14]
xor edi, dword [eax + 0x14]
mov eax, dword [ebp - 0x10]
shr eax, 0x10
movzx ecx, al
mov eax, esi
shr eax, 8
movzx eax, al
mov dword [ebp - 4], edi
mov ecx, dword [ecx*4 + 0x4b1400]
mov edi, dword [ebp - 0x14]
xor ecx, dword [eax*4 + 0x4b1000]
mov eax, ebx
shr eax, 0x18
shr ebx, 0x10
xor ecx, dword [eax*4 + 0x4b1800]
movzx eax, dl
shr edx, 0x18
xor ecx, dword [eax*4 + 0x4b0c00]
xor ecx, dword [edi + 0x18]
mov eax, dword [ebp - 0x10]
mov dword [ebp - 0xc], ecx
shr eax, 8
movzx ecx, bl
movzx eax, al
mov ecx, dword [ecx*4 + 0x4b1400]
xor ecx, dword [eax*4 + 0x4b1000]
mov eax, esi
xor ecx, dword [edx*4 + 0x4b1800]
movzx eax, al
xor ecx, dword [eax*4 + 0x4b0c00]
xor ecx, dword [edi + 0x1c]
add edi, 0x20
sub dword [ebp - 0x1c], 1
mov dword [ebp + 8], ecx
mov dword [ebp - 0x14], edi
jne 0x401942
mov ebx, dword [ebp - 0xc]
mov eax, ecx
shr eax, 0x10
movzx eax, al
mov edx, dword [ebp - 4]
mov ecx, dword [eax*4 + 0x4b07f8]
mov eax, ebx
shr eax, 8
and ecx, 0xff0000
movzx eax, al
mov eax, dword [eax*4 + 0x4b07f8]
and eax, 0xff00
xor ecx, eax
mov eax, dword [ebp - 8]
shr eax, 0x18
mov eax, dword [eax*4 + 0x4b07f8]
and eax, 0xff000000
xor ecx, eax
movzx eax, dl
movzx eax, byte [eax*4 + 0x4b07f8]
xor ecx, eax
mov eax, dword [ebp - 8]
xor ecx, dword [edi]
shr eax, 0x10
movzx eax, al
mov dword [ebp - 0x1c], ecx
mov ecx, dword [eax*4 + 0x4b07f8]
mov eax, dword [ebp + 8]
and ecx, 0xff0000
shr eax, 8
movzx eax, al
mov eax, dword [eax*4 + 0x4b07f8]
and eax, 0xff00
xor ecx, eax
mov eax, edx
shr eax, 0x18
mov eax, dword [eax*4 + 0x4b07f8]
and eax, 0xff000000
xor ecx, eax
movzx eax, bl
movzx eax, byte [eax*4 + 0x4b07f8]
xor ecx, eax
mov eax, edx
xor ecx, dword [edi + 4]
shr eax, 0x10
movzx eax, al
mov dword [ebp - 0x18], ecx
shr edx, 8
mov ecx, dword [eax*4 + 0x4b07f8]
mov eax, dword [ebp - 8]
and ecx, 0xff0000
shr eax, 8
movzx eax, al
mov eax, dword [eax*4 + 0x4b07f8]
and eax, 0xff00
xor ecx, eax
mov eax, ebx
shr eax, 0x18
shr ebx, 0x10
mov eax, dword [eax*4 + 0x4b07f8]
and eax, 0xff000000
xor ecx, eax
mov eax, dword [ebp + 8]
movzx eax, al
movzx eax, byte [eax*4 + 0x4b07f8]
xor ecx, eax
movzx eax, bl
xor ecx, dword [edi + 8]
mov dword [ebp - 0x14], ecx
mov ebx, dword [eax*4 + 0x4b07f8]
movzx eax, dl
and ebx, 0xff0000
mov eax, dword [eax*4 + 0x4b07f8]
and eax, 0xff00
xor ebx, eax
mov eax, dword [ebp + 8]
shr eax, 0x18
mov eax, dword [eax*4 + 0x4b07f8]
and eax, 0xff000000
xor ebx, eax
mov eax, dword [ebp - 8]
movzx eax, al
movzx eax, byte [eax*4 + 0x4b07f8]
xor ebx, eax
xor ebx, dword [edi + 0xc]
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov edx, dword [ebp - 0x20]
mov ecx, dword [ebp - 0x1c]
mov eax, ecx
shr eax, 0x18
pop edi
mov byte [edx], al
mov eax, ecx
shr eax, 0x10
mov byte [edx + 1], al
mov eax, ecx
shr eax, 8
mov byte [edx + 2], al
mov byte [edx + 3], cl
mov ecx, dword [ebp - 0x18]
mov eax, ecx
shr eax, 0x18
mov byte [edx + 4], al
mov eax, ecx
shr eax, 0x10
mov byte [edx + 5], al
mov eax, ecx
shr eax, 8
mov byte [edx + 6], al
mov byte [edx + 7], cl
mov ecx, dword [ebp - 0x14]
mov eax, ecx
shr eax, 0x18
mov byte [edx + 8], al
mov eax, ecx
shr eax, 0x10
mov byte [edx + 9], al
mov eax, ecx
shr eax, 8
mov byte [edx + 0xa], al
mov eax, ebx
shr eax, 0x18
mov byte [edx + 0xc], al
mov eax, ebx
shr eax, 0x10
mov byte [edx + 0xd], al
mov eax, ebx
shr eax, 8
pop esi
mov byte [edx + 0xf], bl
mov byte [edx + 0xb], cl
mov byte [edx + 0xe], al
pop ebx
mov esp, ebp
pop ebp
ret