Function at 0x495570
Capabilities:
Encode data using xor

Disassembly:
push ebx
mov ebx, dword [esp + 8]
push ebp
push esi
mov esi, dword [esp + 0x18]
mov edx, dword [ebx + 0xe8]
push edi
test edx, edx
je 0x495591
mov eax, dword [ebx + 0x84]
sub eax, esi
dec eax
jmp 0x495593
mov eax, esi
mov ebp, dword [ebx + 0xcc]
mov edi, ebp
mov ecx, dword [ebx + 0xd4]
imul edi, eax
mov eax, ecx
imul eax, dword [esp + 0x18]
add edi, eax
add edi, dword [ebx + 0xc8]
test edx, edx
je 0x4955b9
neg ebp
cmp dword [ebx + 0xe0], 0
jne 0x49597d
cmp dword [ebx + 0xe4], 0
jne 0x49597d
mov eax, dword [ebx + 0xd8]
test al, 2
je 0x49560d
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x4959a1
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, ebp
dec ecx
jne 0x4955e9
jmp 0x4959a1
test eax, 0x100
je 0x49564d
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x4959a1
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
mov al, byte [ebx + 0xfc]
mov byte [edi + 3], al
add edi, ebp
dec ecx
jne 0x495620
jmp 0x4959a1
test al, 8
je 0x495679
cmp ecx, 4
jne 0x4959a1
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x4959a1
mov al, byte [ebx + 0xfc]
mov byte [edi + 3], al
add edi, ebp
dec ecx
jne 0x495666
jmp 0x4959a1
test al, 0x10
je 0x495828
cmp ecx, 4
jne 0x4957ca
mov eax, dword [esp + 0x20]
jmp 0x4957b9
movzx edx, byte [edi + 3]
mov ecx, dword [ebx + 0xfc]
mov dword [esp + 0x18], edx
test ecx, ecx
jne 0x4956ab
movzx eax, byte [edi + 2]
jmp 0x4956ec
test edx, edx
jne 0x4956ba
mov eax, dword [ebx + 0xf0]
cdq
idiv ecx
jmp 0x4956e8
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 2]
imul ecx, dword [ebx + 0xf0], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov edx, dword [esp + 0x18]
mov byte [edi + 2], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x4956ff
movzx eax, byte [edi + 1]
jmp 0x49573c
test edx, edx
jne 0x49570e
mov eax, dword [ebx + 0xf4]
cdq
idiv ecx
jmp 0x49573c
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 1]
imul ecx, dword [ebx + 0xf4], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
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 0x49574e
movzx eax, byte [edi]
jmp 0x49578e
mov edx, dword [esp + 0x18]
test edx, edx
jne 0x495761
mov eax, dword [ebx + 0xf8]
cdq
idiv ecx
jmp 0x49578e
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi]
imul ecx, dword [ebx + 0xf8], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi], al
imul ecx, dword [ebx + 0xfc], 0xff
mov eax, dword [ebx + 0x100]
imul eax, dword [esp + 0x18]
add eax, ecx
mov ecx, 0xff
cdq
idiv ecx
mov byte [edi + 3], al
mov eax, dword [esp + 0x14]
dec eax
add edi, ebp
mov dword [esp + 0x14], eax
test eax, eax
jne 0x495693
jmp 0x4959a1
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x4959a1
mov esi, 0xff
movzx eax, byte [edi + 2]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf0]
cdq
idiv esi
mov byte [edi + 2], al
movzx eax, byte [edi + 1]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf4]
cdq
idiv esi
mov byte [edi + 1], al
movzx eax, byte [edi]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf8]
cdq
idiv esi
mov byte [edi], al
add edi, ebp
dec ecx
jne 0x4957db
jmp 0x4959a1
test al, 0x20
je 0x495954
cmp ecx, 4
jne 0x495954
mov eax, dword [esp + 0x20]
jmp 0x495946
movzx edx, byte [edi + 3]
mov ecx, dword [ebx + 0xfc]
mov dword [esp + 0x18], edx
test ecx, ecx
jne 0x49585a
movzx eax, byte [edi + 2]
jmp 0x49589b
test edx, edx
jne 0x495869
mov eax, dword [ebx + 0xf0]
cdq
idiv ecx
jmp 0x495897
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 2]
imul ecx, dword [ebx + 0xf0], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov edx, dword [esp + 0x18]
mov byte [edi + 2], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x4958ae
movzx eax, byte [edi + 1]
jmp 0x4958eb
test edx, edx
jne 0x4958bd
mov eax, dword [ebx + 0xf4]
cdq
idiv ecx
jmp 0x4958eb
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 1]
imul ecx, dword [ebx + 0xf4], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
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 0x4958fd
movzx eax, byte [edi]
jmp 0x49593d
mov edx, dword [esp + 0x18]
test edx, edx
jne 0x495910
mov eax, dword [ebx + 0xf8]
cdq
idiv ecx
jmp 0x49593d
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi]
imul ecx, dword [ebx + 0xf8], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi], al
mov eax, dword [esp + 0x14]
dec eax
add edi, ebp
mov dword [esp + 0x14], eax
test eax, eax
jne 0x495842
jmp 0x4959a1
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x4959a1
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, ebp
dec ecx
jne 0x49595c
jmp 0x4959a1
mov eax, dword [esp + 0x20]
mov dword [esp + 0x14], eax
test eax, eax
je 0x4959a1
push edi
push esi
push dword [esp + 0x20]
push ebx
call fcn.004950a2
add esp, 0x10
add edi, ebp
inc esi
dec dword [esp + 0x14]
jne 0x495989
pop edi
pop esi
pop ebp
pop ebx
ret