Function at 0x40d0a0
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, 0x1c
push ebx
push esi
mov esi, dword [ebp + 8]
push edi
mov edi, ecx
mov dword [ebp - 0x14], edx
mov dword [ebp - 0xc], edi
mov eax, dword [esi]
mov ecx, eax
rol eax, 8
and eax, 0xff00ff
ror ecx, 8
and ecx, 0xff00ff00
or ecx, eax
mov eax, dword [esi + 4]
xor ecx, dword [edi]
mov dword [ebp - 0x18], ecx
mov ecx, eax
rol eax, 8
and eax, 0xff00ff
ror ecx, 8
and ecx, 0xff00ff00
or ecx, eax
mov eax, dword [esi + 8]
xor ecx, dword [edi + 4]
mov ebx, eax
rol eax, 8
and eax, 0xff00ff
ror ebx, 8
and ebx, 0xff00ff00
mov dword [ebp - 4], ecx
or ebx, eax
mov eax, dword [esi + 0xc]
xor ebx, dword [edi + 8]
mov edx, eax
rol eax, 8
and eax, 0xff00ff
mov esi, dword [ebp - 0x18]
ror edx, 8
and edx, 0xff00ff00
or edx, eax
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 + reloc.USER32.dll_PeekMessageA]
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, esi
shr eax, 0x18
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, dword [ebp - 4]
movzx eax, al
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, edx
xor ecx, dword [edi + 0x10]
shr eax, 8
mov dword [ebp - 8], ecx
movzx ecx, al
mov eax, esi
shr eax, 0x10
movzx eax, al
mov edi, dword [ecx*4 + reloc.USER32.dll_PeekMessageA]
xor edi, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, dword [ebp - 4]
shr eax, 0x18
xor edi, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
movzx eax, bl
xor edi, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, dword [ebp - 0xc]
xor edi, dword [eax + 0x14]
mov eax, dword [ebp - 4]
shr eax, 0x10
movzx ecx, al
mov eax, esi
shr eax, 8
mov dword [ebp - 0x10], edi
movzx eax, al
mov ecx, dword [ecx*4 + reloc.USER32.dll_PeekMessageA]
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, ebx
mov edi, dword [ebp - 0xc]
shr eax, 0x18
shr ebx, 0x10
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
movzx eax, dl
shr edx, 0x18
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
xor ecx, dword [edi + 0x18]
mov eax, dword [ebp - 4]
mov dword [ebp + 8], ecx
shr eax, 8
movzx eax, al
movzx ecx, bl
mov ecx, dword [ecx*4 + reloc.USER32.dll_PeekMessageA]
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, esi
xor ecx, dword [edx*4 + reloc.USER32.dll_PeekMessageA]
movzx eax, al
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, dword [ebp - 0x14]
xor ecx, dword [edi + 0x1c]
add edi, 0x20
sar eax, 1
sub eax, 1
mov dword [ebp - 4], ecx
mov dword [ebp - 0xc], edi
mov dword [ebp - 0x14], eax
je 0x40d42a
mov ebx, dword [ebp + 8]
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 + reloc.USER32.dll_PeekMessageA]
mov edx, dword [ebp - 0x10]
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, esi
shr eax, 0x18
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
movzx eax, dl
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
xor ecx, dword [edi]
mov eax, dword [ebp - 4]
shr eax, 8
mov dword [ebp - 0x1c], ecx
movzx ecx, al
mov eax, esi
shr eax, 0x10
movzx eax, al
mov ecx, dword [ecx*4 + reloc.USER32.dll_PeekMessageA]
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, edx
shr eax, 0x18
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
movzx eax, bl
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, edx
xor ecx, dword [edi + 4]
shr eax, 0x10
mov dword [ebp - 0x18], ecx
movzx ecx, al
mov eax, esi
shr eax, 8
movzx eax, al
shr edx, 8
mov ebx, dword [ecx*4 + reloc.USER32.dll_PeekMessageA]
mov ecx, dword [ebp + 8]
xor ebx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, ecx
shr eax, 0x18
shr ecx, 0x10
movzx ecx, cl
xor ebx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, dword [ebp - 4]
movzx eax, al
xor ebx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
xor ebx, dword [edi + 8]
movzx eax, dl
mov edx, dword [ecx*4 + reloc.USER32.dll_PeekMessageA]
xor edx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, dword [ebp - 4]
shr eax, 0x18
xor edx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, esi
movzx eax, al
mov esi, dword [ebp - 0x1c]
xor edx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
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 + reloc.USER32.dll_PeekMessageA]
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, esi
shr eax, 0x18
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, dword [ebp - 0x18]
movzx eax, al
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
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 + reloc.USER32.dll_PeekMessageA]
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, dword [ebp - 0x18]
mov edi, ecx
shr eax, 0x18
mov dword [ebp - 0x10], ecx
xor edi, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
movzx eax, bl
xor edi, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, dword [ebp - 0xc]
xor edi, dword [eax + 0x14]
mov eax, dword [ebp - 0x18]
shr eax, 0x10
movzx ecx, al
mov eax, esi
shr eax, 8
movzx eax, al
mov dword [ebp - 0x10], edi
mov ecx, dword [ecx*4 + reloc.USER32.dll_PeekMessageA]
mov edi, dword [ebp - 0xc]
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, ebx
shr eax, 0x18
shr ebx, 0x10
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
movzx eax, dl
shr edx, 0x18
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
xor ecx, dword [edi + 0x18]
mov eax, dword [ebp - 0x18]
mov dword [ebp + 8], ecx
shr eax, 8
movzx ecx, bl
movzx eax, al
mov ecx, dword [ecx*4 + reloc.USER32.dll_PeekMessageA]
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, esi
xor ecx, dword [edx*4 + reloc.USER32.dll_PeekMessageA]
movzx eax, al
xor ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
xor ecx, dword [edi + 0x1c]
add edi, 0x20
sub dword [ebp - 0x14], 1
mov dword [ebp - 4], ecx
mov dword [ebp - 0xc], edi
jne 0x40d230
mov eax, ecx
mov ebx, dword [ebp - 0x10]
shr eax, 0x10
movzx eax, al
mov edx, dword [ebp + 0xc]
mov ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, dword [ebp + 8]
and ecx, 0xff0000
shr eax, 8
movzx eax, al
mov eax, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
and eax, 0xff00
xor ecx, eax
mov eax, dword [ebp - 8]
shr eax, 0x18
mov eax, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
and eax, 0xff000000
xor ecx, eax
movzx eax, bl
movzx eax, byte [eax*4 + 0x46aa50]
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 [ebp - 8]
shr eax, 0x10
movzx eax, al
mov ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, dword [ebp - 4]
and ecx, 0xff0000
shr eax, 8
movzx eax, al
mov eax, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
and eax, 0xff00
xor ecx, eax
mov eax, ebx
shr eax, 0x18
mov eax, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
and eax, 0xff000000
xor ecx, eax
mov eax, dword [ebp + 8]
movzx eax, al
movzx eax, byte [eax*4 + 0x46aa50]
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
movzx eax, al
mov ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
mov eax, dword [ebp - 8]
and ecx, 0xff0000
shr eax, 8
movzx eax, al
mov eax, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
and eax, 0xff00
xor ecx, eax
mov eax, dword [ebp + 8]
shr eax, 0x18
mov eax, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
and eax, 0xff000000
xor ecx, eax
mov eax, dword [ebp - 4]
movzx eax, al
movzx eax, byte [eax*4 + 0x46aa50]
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
mov dword [edx + 8], eax
mov eax, dword [ebp + 8]
shr eax, 0x10
movzx eax, al
mov ecx, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
movzx eax, bl
and ecx, 0xff0000
mov eax, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
and eax, 0xff00
xor ecx, eax
mov eax, dword [ebp - 4]
shr eax, 0x18
mov eax, dword [eax*4 + reloc.USER32.dll_PeekMessageA]
and eax, 0xff000000
xor ecx, eax
mov eax, dword [ebp - 8]
movzx eax, al
movzx eax, byte [eax*4 + 0x46aa50]
xor ecx, eax
xor ecx, dword [edi + 0xc]
mov eax, ecx
rol ecx, 8
ror eax, 8
and ecx, 0xff00ff
pop edi
and eax, 0xff00ff00
or eax, ecx
pop esi
mov dword [edx + 0xc], eax
pop ebx
mov esp, ebp
pop ebp
ret