Function at 0x40a5c7
Capabilities:
Encode data using xor
Encrypt data using aes
Reference aes constants

Disassembly:
mov eax, 0x49b5cd
call fcn.0045797c
sub esp, 0x28
push ebx
push esi
mov esi, dword [ebp + 8]
mov ebx, ecx
mov dword [ebp - 0x1c], ebx
push edi
test esi, esi
je 0x40aa18
mov ecx, dword [ebp + 0x10]
push 0x18
pop edi
cmp ecx, 0x10
je 0x40a617
cmp ecx, edi
je 0x40a617
cmp ecx, 0x20
je 0x40a617
lea eax, [ebp + 0xc]
push 0x4c268c
push eax
call fcn.00434880
pop ecx
pop ecx
mov dword [ebp - 4], 1
jmp 0x40aa2c
mov eax, dword [ebp + 0x14]
cmp eax, 0x10
je 0x40a65d
cmp eax, edi
je 0x40a65d
cmp eax, 0x20
je 0x40a65d
lea eax, [ebp + 8]
push 0x4c26b8
push eax
call fcn.00434880
pop ecx
pop ecx
mov ecx, eax
mov dword [ebp - 4], 2
call dword [sym.imp.mfc140u.dll_Ordinal_1665]
push eax
lea ecx, [ebp - 0x34]
call fcn.00445c68
push 0x4ed3d8
lea eax, [ebp - 0x34]
jmp 0x40aa45
push eax
push dword [ebp + 0xc]
mov dword [ebx + 0x3cc], eax
lea eax, [ebx + 0x3d4]
push eax
mov dword [ebx + 0x3c8], ecx
call sub.VCRUNTIME140.dll_memcpy
push dword [ebx + 0x3cc]
lea eax, [ebx + 0x3f4]
push dword [ebp + 0xc]
push eax
call sub.VCRUNTIME140.dll_memcpy
mov eax, dword [ebx + 0x3c8]
add esp, 0x18
mov ecx, dword [ebx + 0x3cc]
cmp eax, 0x10
je 0x40a6c0
cmp eax, edi
je 0x40a6b2
mov dword [ebx + 0x3d0], 0xe
jmp 0x40a6db
push 0xe
pop eax
push 0xc
cmp ecx, 0x20
pop edx
cmovne eax, edx
jmp 0x40a6d5
cmp ecx, 0x10
jne 0x40a6ca
push 0xa
pop eax
jmp 0x40a6d5
push 0xe
pop eax
push 0xc
cmp ecx, edi
pop edx
cmove eax, edx
mov dword [ebx + 0x3d0], eax
mov eax, ecx
lea ecx, [ebx + 8]
cdq
and edx, 3
mov dword [ebp + 0xc], ecx
lea edi, [edx + eax]
sar edi, 2
xor edx, edx
mov dword [ebp + 8], edi
test edi, edi
jle 0x40a705
mov ecx, edi
xor eax, eax
mov edi, dword [ebp + 0xc]
rep stosd dword es:[edi], eax
mov edi, dword [ebp + 8]
mov ecx, dword [ebp + 0xc]
mov eax, dword [ebx + 0x3d0]
inc edx
add ecx, 0x20
mov dword [ebp + 0xc], ecx
cmp edx, eax
jle 0x40a6f2
xor ecx, ecx
mov dword [ebp + 0xc], ecx
test eax, eax
js 0x40a748
lea edx, [ebx + 0x1e8]
test edi, edi
jle 0x40a737
mov ecx, edi
xor eax, eax
mov edi, edx
rep stosd dword es:[edi], eax
mov edi, dword [ebp + 8]
mov ecx, dword [ebp + 0xc]
mov eax, dword [ebx + 0x3d0]
inc ecx
add edx, 0x20
mov dword [ebp + 0xc], ecx
cmp ecx, eax
jle 0x40a725
inc eax
imul eax, edi
mov dword [ebp + 0x14], eax
mov eax, dword [ebx + 0x3c8]
cdq
and edx, 3
lea ecx, [edx + eax]
sar ecx, 2
lea eax, [ebx + 0x414]
mov dword [ebp + 0xc], ecx
mov dword [ebp - 0x18], eax
test ecx, ecx
jle 0x40a7b0
mov ebx, ecx
mov edi, eax
movzx eax, byte [esi]
lea esi, [esi + 4]
shl eax, 0x18
mov dword [edi], eax
movzx edx, byte [esi - 3]
shl edx, 0x10
or edx, eax
mov dword [edi], edx
movzx ecx, byte [esi - 2]
shl ecx, 8
or ecx, edx
mov dword [edi], ecx
movzx eax, byte [esi - 1]
or eax, ecx
mov dword [edi], eax
lea edi, [edi + 4]
sub ebx, 1
jne 0x40a773
mov ebx, dword [ebp - 0x1c]
mov edi, dword [ebp + 8]
mov ecx, dword [ebp + 0xc]
mov eax, dword [ebp - 0x18]
xor esi, esi
mov dword [ebp + 0x10], esi
test ecx, ecx
jle 0x40a805
mov ecx, eax
mov dword [ebp - 0x10], ecx
jmp 0x40a7c3
mov ecx, dword [ebp - 0x10]
cmp esi, dword [ebp + 0x14]
jge 0x40a989
mov eax, esi
mov ecx, dword [ecx]
cdq
idiv edi
lea esi, [edx + eax*8]
mov dword [ebx + esi*4 + 8], ecx
mov ecx, dword [ebx + 0x3d0]
mov esi, dword [ebp + 0x10]
sub ecx, eax
inc esi
mov dword [ebp + 0x10], esi
lea ecx, [edx + ecx*8]
mov edx, dword [ebp - 0x10]
mov eax, dword [edx]
add edx, 4
mov dword [ebx + ecx*4 + 0x1e8], eax
mov ecx, dword [ebp + 0xc]
mov dword [ebp - 0x10], edx
cmp esi, ecx
jl 0x40a7c0
cmp esi, dword [ebp + 0x14]
jge 0x40a989
mov dword [ebp - 0x10], 0x4c2510
mov edx, dword [ebx + ecx*4 + 0x410]
mov eax, edx
sar eax, 0x10
movzx eax, al
movsx ecx, byte [eax + str.cw]
mov eax, dword [ebp - 0x10]
movsx eax, byte [eax]
xor ecx, eax
mov eax, edx
sar eax, 8
movzx eax, al
shl ecx, 8
movzx eax, byte [eax + str.cw]
xor ecx, eax
movzx eax, dl
shl ecx, 8
sar edx, 0x18
movzx eax, byte [eax + str.cw]
xor ecx, eax
movzx eax, dl
shl ecx, 8
movzx eax, byte [eax + str.cw]
xor ecx, eax
lea eax, [ebx + 0x414]
xor dword [eax], ecx
inc dword [ebp - 0x10]
mov ecx, dword [ebp + 0xc]
cmp ecx, 8
je 0x40a8a2
cmp ecx, 1
jle 0x40a929
lea edx, [ebx + 0x418]
lea edi, [ecx - 1]
mov eax, dword [edx - 4]
xor dword [edx], eax
lea edx, [edx + 4]
sub edi, 1
jne 0x40a88d
mov edi, dword [ebp + 8]
jmp 0x40a923
push 3
lea ecx, [ebx + 0x418]
pop edx
mov eax, dword [ecx - 4]
xor dword [ecx], eax
lea ecx, [ecx + 4]
sub edx, 1
jne 0x40a8ab
mov edx, dword [ebx + 0x420]
mov eax, edx
sar eax, 0x18
movzx eax, al
push 3
movsx ecx, byte [eax + str.cw]
mov eax, edx
sar eax, 0x10
movzx eax, al
shl ecx, 8
movzx eax, byte [eax + str.cw]
xor ecx, eax
mov eax, edx
sar eax, 8
movzx eax, al
shl ecx, 8
movzx eax, byte [eax + str.cw]
xor ecx, eax
movzx eax, dl
shl ecx, 8
pop edx
movzx eax, byte [eax + str.cw]
xor ecx, eax
xor dword [ebx + 0x424], ecx
lea ecx, [ebx + 0x428]
mov eax, dword [ecx - 4]
xor dword [ecx], eax
lea ecx, [ecx + 4]
sub edx, 1
jne 0x40a913
mov ecx, dword [ebp + 0xc]
lea eax, [ebx + 0x414]
and dword [ebp - 0x18], 0
test ecx, ecx
jle 0x40a980
mov ecx, eax
mov dword [ebp - 0x14], ecx
jmp 0x40a93b
mov ecx, dword [ebp - 0x14]
cmp esi, dword [ebp + 0x14]
jge 0x40a989
mov eax, esi
mov ecx, dword [ecx]
cdq
idiv edi
lea esi, [edx + eax*8]
mov dword [ebx + esi*4 + 8], ecx
mov ecx, dword [ebx + 0x3d0]
mov esi, dword [ebp + 0x10]
sub ecx, eax
lea ecx, [edx + ecx*8]
mov edx, dword [ebp - 0x14]
mov eax, dword [edx]
add edx, 4
mov dword [ebx + ecx*4 + 0x1e8], eax
mov eax, dword [ebp - 0x18]
mov ecx, dword [ebp + 0xc]
inc eax
inc esi
mov dword [ebp - 0x18], eax
mov dword [ebp - 0x14], edx
mov dword [ebp + 0x10], esi
cmp eax, ecx
jl 0x40a938
cmp esi, dword [ebp + 0x14]
jl 0x40a815
xor esi, esi
inc esi
cmp dword [ebx + 0x3d0], esi
jle 0x40aa03
lea eax, [ebx + 0x208]
mov dword [ebp + 0xc], eax
test edi, edi
jle 0x40a9f4
mov ebx, edi
mov dword [ebp + 0x10], eax
mov edi, eax
mov edx, dword [edi]
mov eax, edx
sar eax, 0x18
movzx ecx, al
mov eax, edx
sar eax, 0x10
movzx eax, al
mov ecx, dword [ecx*4 + 0x4c1510]
xor ecx, dword [eax*4 + 0x4c1910]
mov eax, edx
sar eax, 8
movzx eax, al
xor ecx, dword [eax*4 + 0x4c1d10]
movzx eax, dl
xor ecx, dword [eax*4 + 0x4c2110]
mov dword [edi], ecx
lea edi, [edi + 4]
sub ebx, 1
jne 0x40a9a8
mov ebx, dword [ebp - 0x1c]
mov edi, dword [ebp + 8]
mov eax, dword [ebp + 0xc]
inc esi
add eax, 0x20
mov dword [ebp + 0xc], eax
cmp esi, dword [ebx + 0x3d0]
jl 0x40a99d
mov ecx, dword [ebp - 0xc]
pop edi
mov byte [ebx + 4], 1
pop esi
pop ebx
mov dword fs:[0], ecx
leave
ret 0x10
lea eax, [ebp + 0xc]
push 0x4c2674
push eax
call fcn.00434880
pop ecx
pop ecx
and dword [ebp - 4], 0
mov ecx, eax
call dword [sym.imp.mfc140u.dll_Ordinal_1665]
push eax
lea ecx, [ebp - 0x28]
call fcn.00445c68
push 0x4ed3d8
lea eax, [ebp - 0x28]
push eax
call sub.VCRUNTIME140.dll__CxxThrowException
int3