Function at 0x497153
Capabilities:
Encode data using xor

Disassembly:
push ebx
mov ebx, dword [esp + 8]
xor edx, edx
push ebp
push esi
mov esi, dword [esp + 0x18]
push edi
cmp dword [ebx + 0xe8], edx
je 0x497174
mov eax, dword [ebx + 0x84]
sub eax, esi
dec eax
jmp 0x497176
mov eax, esi
mov edi, dword [ebx + 0xcc]
mov ecx, dword [ebx + 0xd4]
mov ebp, dword [esp + 0x18]
imul edi, eax
mov eax, ecx
imul eax, ebp
add edi, eax
add edi, dword [ebx + 0xc8]
cmp dword [ebx + 0xe0], edx
jne 0x4975ac
cmp dword [ebx + 0xe4], edx
jne 0x4975ac
mov eax, dword [ebx + 0xd8]
test al, 2
je 0x4971ec
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x4975d1
mov al, byte [ebx + 0xf0]
xor byte [edi + 2], al
mov al, byte [ebx + 0xf4]
xor byte [edi + 1], al
mov al, byte [ebx + 0xf8]
xor byte [edi], al
add edi, dword [ebx + 0xd4]
dec ecx
jne 0x4971c4
jmp 0x4975d1
test eax, 0x100
je 0x49722d
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x4975d1
mov al, byte [ebx + 0xf0]
mov byte [edi + 2], al
mov al, byte [ebx + 0xf4]
mov byte [edi + 1], al
mov al, byte [ebx + 0xf8]
mov byte [edi], al
lea edi, [edi + 4]
mov al, byte [ebx + 0xfc]
mov byte [edi - 1], al
dec ecx
jne 0x4971ff
jmp 0x4975d1
test al, 8
je 0x49725c
cmp ecx, 4
jne 0x4975d1
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x4975d1
add edi, 3
mov al, byte [ebx + 0xfc]
mov byte [edi], al
lea edi, [edi + 4]
dec ecx
jne 0x497249
jmp 0x4975d1
test al, 0x10
je 0x4973ff
cmp ecx, 4
jne 0x4973a0
mov eax, dword [esp + 0x20]
mov dword [esp + 0x14], eax
test eax, eax
je 0x4975d1
mov ecx, dword [ebx + 0xfc]
movzx ebp, byte [edi + 3]
test ecx, ecx
jne 0x497291
movzx eax, byte [edi + 2]
jmp 0x4972ce
test ebp, ebp
jne 0x4972a0
mov eax, dword [ebx + 0xf0]
cdq
idiv ecx
jmp 0x4972ce
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 2]
imul ecx, dword [ebx + 0xf0], 0xff
imul eax, esi
imul esi, ebp
imul eax, ebp
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi + 2], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x4972e1
movzx eax, byte [edi + 1]
jmp 0x49731e
test ebp, ebp
jne 0x4972f0
mov eax, dword [ebx + 0xf4]
cdq
idiv ecx
jmp 0x49731e
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 1]
imul ecx, dword [ebx + 0xf4], 0xff
imul eax, esi
imul esi, ebp
imul eax, ebp
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi + 1], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x497330
movzx eax, byte [edi]
jmp 0x49736c
test ebp, ebp
jne 0x49733f
mov eax, dword [ebx + 0xf8]
cdq
idiv ecx
jmp 0x49736c
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi]
imul ecx, dword [ebx + 0xf8], 0xff
imul eax, esi
imul esi, ebp
imul eax, ebp
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi], al
mov eax, dword [ebx + 0x100]
imul ecx, dword [ebx + 0xfc], 0xff
imul eax, ebp
add eax, ecx
mov ecx, 0xff
cdq
idiv ecx
mov byte [edi + 3], al
add edi, 4
dec dword [esp + 0x14]
jne 0x49727d
jmp 0x4975d1
mov esi, dword [esp + 0x20]
test esi, esi
je 0x4975d1
mov ecx, 0xff
movzx eax, byte [edi + 2]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf0]
cdq
idiv ecx
mov byte [edi + 2], al
movzx eax, byte [edi + 1]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf4]
cdq
idiv ecx
mov byte [edi + 1], al
movzx eax, byte [edi]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf8]
cdq
idiv ecx
mov byte [edi], al
lea edi, [edi + 3]
dec esi
jne 0x4973b1
jmp 0x4975d1
test al, 0x20
je 0x49757f
cmp ecx, 4
jne 0x497523
mov eax, dword [esp + 0x20]
mov dword [esp + 0x14], eax
test eax, eax
je 0x4975d1
mov ecx, dword [ebx + 0xfc]
movzx ebp, byte [edi + 3]
test ecx, ecx
jne 0x497434
movzx eax, byte [edi + 2]
jmp 0x497471
test ebp, ebp
jne 0x497443
mov eax, dword [ebx + 0xf0]
cdq
idiv ecx
jmp 0x497471
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 2]
imul ecx, dword [ebx + 0xf0], 0xff
imul eax, esi
imul esi, ebp
imul eax, ebp
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi + 2], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x497484
movzx eax, byte [edi + 1]
jmp 0x4974c1
test ebp, ebp
jne 0x497493
mov eax, dword [ebx + 0xf4]
cdq
idiv ecx
jmp 0x4974c1
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 1]
imul ecx, dword [ebx + 0xf4], 0xff
imul eax, esi
imul esi, ebp
imul eax, ebp
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi + 1], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x4974d3
movzx eax, byte [edi]
jmp 0x49750f
test ebp, ebp
jne 0x4974e2
mov eax, dword [ebx + 0xf8]
cdq
idiv ecx
jmp 0x49750f
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi]
imul ecx, dword [ebx + 0xf8], 0xff
imul eax, esi
imul esi, ebp
imul eax, ebp
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi], al
add edi, 4
dec dword [esp + 0x14]
jne 0x497420
jmp 0x4975d1
mov esi, dword [esp + 0x20]
test esi, esi
je 0x4975d1
mov ecx, 0xff
movzx eax, byte [edi + 2]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf0]
cdq
idiv ecx
mov byte [edi + 2], al
movzx eax, byte [edi + 1]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf4]
cdq
idiv ecx
mov byte [edi + 1], al
movzx eax, byte [edi]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf8]
cdq
idiv ecx
mov byte [edi], al
lea edi, [edi + 3]
dec esi
jne 0x497534
jmp 0x4975d1
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x4975d1
mov al, byte [ebx + 0xf0]
mov byte [edi + 2], al
mov al, byte [ebx + 0xf4]
mov byte [edi + 1], al
mov al, byte [ebx + 0xf8]
mov byte [edi], al
add edi, dword [ebx + 0xd4]
dec ecx
jne 0x497587
jmp 0x4975d1
mov eax, dword [esp + 0x20]
mov dword [esp + 0x14], eax
test eax, eax
je 0x4975d1
push edi
push esi
push ebp
push ebx
call fcn.00497622
add edi, dword [ebx + 0xd4]
add esp, 0x10
inc ebp
dec dword [esp + 0x14]
jne 0x4975b8
pop edi
pop esi
pop ebp
pop ebx
ret