Function at 0x4d8490
Capabilities:
Encode data using xor
Hash data using murmur3

Disassembly:
mov eax, 0x48
call fcn.00497d50
cmp dword [esp + 0x54], 0
mov ecx, dword [esp + 0x4c]
mov edx, dword [ecx]
mov eax, dword [esp + 0x50]
push ebp
mov ebp, dword [ecx + 8]
push edi
mov edi, dword [ecx + 0xc]
mov dword [esp + 0x58], edx
mov edx, dword [ecx + 4]
je 0x4d8bbb
push ebx
push esi
movzx esi, byte [eax]
xor ecx, ecx
mov ch, byte [eax + 1]
add eax, 1
add eax, 1
add eax, 1
add eax, 1
add eax, 1
add eax, 1
or esi, ecx
movzx ecx, byte [eax - 4]
shl ecx, 0x10
or esi, ecx
movzx ecx, byte [eax - 3]
shl ecx, 0x18
or esi, ecx
mov ebx, esi
movzx esi, byte [eax - 2]
xor ecx, ecx
mov ch, byte [eax - 1]
add eax, 1
add eax, 1
mov dword [esp + 0x50], ebx
add eax, 1
sub dword [esp + 0x64], 1
add eax, 1
or esi, ecx
movzx ecx, byte [eax - 4]
shl ecx, 0x10
or esi, ecx
movzx ecx, byte [eax - 3]
shl ecx, 0x18
or esi, ecx
mov ecx, edi
xor ecx, ebp
mov dword [esp + 0x30], esi
movzx esi, byte [eax - 2]
and ecx, edx
xor ecx, edi
add ecx, ebx
xor ebx, ebx
mov bh, byte [eax - 1]
add ecx, dword [esp + 0x60]
add eax, 1
rol ecx, 3
add eax, 1
add eax, 1
add eax, 1
or esi, ebx
movzx ebx, byte [eax - 4]
shl ebx, 0x10
or esi, ebx
movzx ebx, byte [eax - 3]
shl ebx, 0x18
or esi, ebx
mov dword [esp + 0x20], esi
mov esi, ebp
xor esi, edx
and esi, ecx
xor esi, ebp
add esi, dword [esp + 0x30]
xor ebx, ebx
mov bh, byte [eax - 1]
add esi, edi
movzx edi, byte [eax - 2]
add eax, 1
rol esi, 7
or edi, ebx
movzx ebx, byte [eax - 1]
shl ebx, 0x10
or edi, ebx
movzx ebx, byte [eax]
shl ebx, 0x18
or edi, ebx
mov dword [esp + 0x40], edi
mov edi, edx
xor edi, ecx
and edi, esi
xor edi, edx
add eax, 1
add edi, dword [esp + 0x20]
xor ebx, ebx
mov bh, byte [eax + 1]
add eax, 1
add edi, ebp
movzx ebp, byte [eax - 1]
add eax, 1
or ebp, ebx
movzx ebx, byte [eax]
shl ebx, 0x10
or ebp, ebx
movzx ebx, byte [eax + 1]
add eax, 1
shl ebx, 0x18
or ebp, ebx
mov dword [esp + 0x18], ebp
xor ebx, ebx
rol edi, 0xb
add eax, 1
mov bh, byte [eax + 1]
mov ebp, esi
xor ebp, ecx
and ebp, edi
xor ebp, ecx
add ebp, dword [esp + 0x40]
add eax, 1
add ebp, edx
movzx edx, byte [eax - 1]
or edx, ebx
movzx ebx, byte [eax + 1]
add eax, 1
shl ebx, 0x10
or edx, ebx
movzx ebx, byte [eax + 1]
add eax, 1
shl ebx, 0x18
or edx, ebx
mov dword [esp + 0x38], edx
mov edx, esi
xor edx, edi
rol ebp, 0x13
and edx, ebp
xor edx, esi
add edx, dword [esp + 0x18]
add eax, 1
add edx, ecx
movzx ecx, byte [eax]
xor ebx, ebx
mov bh, byte [eax + 1]
add eax, 1
add eax, 1
add eax, 1
rol edx, 3
add eax, 1
add eax, 1
or ecx, ebx
movzx ebx, byte [eax - 3]
shl ebx, 0x10
or ecx, ebx
movzx ebx, byte [eax - 2]
shl ebx, 0x18
or ecx, ebx
mov dword [esp + 0x28], ecx
mov ecx, edi
xor ecx, ebp
and ecx, edx
xor ecx, edi
add ecx, dword [esp + 0x38]
xor ebx, ebx
mov bh, byte [eax]
add ecx, esi
movzx esi, byte [eax - 1]
add eax, 1
add eax, 1
or esi, ebx
movzx ebx, byte [eax - 1]
shl ebx, 0x10
or esi, ebx
movzx ebx, byte [eax]
shl ebx, 0x18
rol ecx, 7
or esi, ebx
xor ebx, ebx
add eax, 1
mov bh, byte [eax + 1]
mov dword [esp + 0x48], esi
mov esi, ebp
xor esi, edx
and esi, ecx
xor esi, ebp
add esi, dword [esp + 0x28]
add eax, 1
add esi, edi
movzx edi, byte [eax - 1]
or edi, ebx
movzx ebx, byte [eax + 1]
add eax, 1
shl ebx, 0x10
or edi, ebx
movzx ebx, byte [eax + 1]
add eax, 1
shl ebx, 0x18
or edi, ebx
mov dword [esp + 0x14], edi
rol esi, 0xb
add eax, 1
xor ebx, ebx
mov bh, byte [eax + 1]
mov edi, ecx
xor edi, edx
and edi, esi
xor edi, edx
add edi, dword [esp + 0x48]
add eax, 1
add edi, ebp
movzx ebp, byte [eax - 1]
or ebp, ebx
movzx ebx, byte [eax + 1]
add eax, 1
shl ebx, 0x10
or ebp, ebx
movzx ebx, byte [eax + 1]
add eax, 1
shl ebx, 0x18
or ebp, ebx
mov dword [esp + 0x34], ebp
rol edi, 0x13
mov ebp, ecx
xor ebp, esi
and ebp, edi
xor ebp, ecx
add ebp, dword [esp + 0x14]
add eax, 1
add ebp, edx
movzx edx, byte [eax]
xor ebx, ebx
mov bh, byte [eax + 1]
add eax, 1
add eax, 1
add eax, 1
rol ebp, 3
add eax, 1
add eax, 1
or edx, ebx
movzx ebx, byte [eax - 3]
shl ebx, 0x10
or edx, ebx
movzx ebx, byte [eax - 2]
shl ebx, 0x18
or edx, ebx
mov dword [esp + 0x24], edx
mov edx, esi
xor edx, edi
and edx, ebp
xor edx, esi
add edx, dword [esp + 0x34]
xor ebx, ebx
mov bh, byte [eax]
add edx, ecx
movzx ecx, byte [eax - 1]
rol edx, 7
or ecx, ebx
add eax, 1
movzx ebx, byte [eax]
shl ebx, 0x10
or ecx, ebx
movzx ebx, byte [eax + 1]
add eax, 1
shl ebx, 0x18
or ecx, ebx
mov dword [esp + 0x44], ecx
mov ecx, edi
xor ecx, ebp
xor ebx, ebx
add eax, 1
mov bh, byte [eax + 1]
and ecx, edx
xor ecx, edi
add ecx, dword [esp + 0x24]
add eax, 1
add ecx, esi
movzx esi, byte [eax - 1]
or esi, ebx
movzx ebx, byte [eax + 1]
add eax, 1
shl ebx, 0x10
or esi, ebx
movzx ebx, byte [eax + 1]
add eax, 1
shl ebx, 0x18
or esi, ebx
mov dword [esp + 0x1c], esi
rol ecx, 0xb
add eax, 1
mov esi, edx
xor esi, ebp
and esi, ecx
xor esi, ebp
add esi, dword [esp + 0x44]
xor ebx, ebx
mov bh, byte [eax + 1]
add esi, edi
movzx edi, byte [eax]
add eax, 1
add eax, 1
or edi, ebx
movzx ebx, byte [eax]
shl ebx, 0x10
or edi, ebx
movzx ebx, byte [eax + 1]
add eax, 1
shl ebx, 0x18
or edi, ebx
mov dword [esp + 0x3c], edi
rol esi, 0x13
mov edi, edx
xor edi, ecx
and edi, esi
xor edi, edx
add edi, dword [esp + 0x1c]
add eax, 1
add edi, ebp
movzx ebp, byte [eax]
xor ebx, ebx
mov bh, byte [eax + 1]
add eax, 1
add eax, 1
add eax, 1
rol edi, 3
add eax, 1
or ebp, ebx
movzx ebx, byte [eax - 2]
shl ebx, 0x10
or ebp, ebx
movzx ebx, byte [eax - 1]
shl ebx, 0x18
or ebp, ebx
mov dword [esp + 0x2c], ebp
mov ebp, ecx
xor ebp, esi
and ebp, edi
xor ebp, ecx
add ebp, dword [esp + 0x3c]
add ebp, edx
movzx edx, byte [eax]
xor ebx, ebx
mov bh, byte [eax + 1]
add eax, 1
add eax, 1
add eax, 1
rol ebp, 7
add eax, 1
or edx, ebx
movzx ebx, byte [eax - 2]
shl ebx, 0x10
or edx, ebx
movzx ebx, byte [eax - 1]
shl ebx, 0x18
or edx, ebx
mov dword [esp + 0x4c], edx
mov edx, esi
xor edx, edi
and edx, ebp
xor edx, esi
add edx, dword [esp + 0x2c]
add edx, ecx
rol edx, 0xb
mov ecx, ebp
xor ecx, edi
and ecx, edx
xor ecx, edi
add ecx, dword [esp + 0x4c]
mov ebx, edx
add ecx, esi
rol ecx, 0x13
and ebx, ecx
mov esi, edx
or esi, ecx
and esi, ebp
or esi, ebx
add esi, dword [esp + 0x50]
mov ebx, ecx
lea edi, [esi + edi + 0x5a827999]
rol edi, 3
and ebx, edi
mov esi, ecx
or esi, edi
mov dword [esp + 0x54], esi
and esi, edx
or esi, ebx
add esi, dword [esp + 0x18]
mov dword [esp + 0x60], ebx
lea ebp, [esi + ebp + 0x5a827999]
mov esi, dword [esp + 0x54]
rol ebp, 5
and esi, ebp
or esi, ebx
add esi, dword [esp + 0x14]
mov dword [esp + 0x10], ebp
lea edx, [esi + edx + 0x5a827999]
rol edx, 9
mov esi, edx
or esi, edi
and esi, ebp
mov ebx, edx
and ebx, edi
or esi, ebx
add esi, dword [esp + 0x1c]
mov ebx, edx
lea ecx, [esi + ecx + 0x5a827999]
rol ecx, 0xd
mov esi, edx
or esi, ecx
and esi, ebp
and ebx, ecx
or esi, ebx
add esi, dword [esp + 0x30]
mov ebx, ecx
lea edi, [esi + edi + 0x5a827999]
rol edi, 3
mov esi, ecx
or esi, edi
and ebx, edi
mov dword [esp + 0x60], ebx
mov ebp, esi
and ebp, edx
or ebp, ebx
add ebp, dword [esp + 0x38]
mov ebx, dword [esp + 0x10]
lea ebx, [ebx + ebp + 0x5a827999]
rol ebx, 5
and esi, ebx
or esi, dword [esp + 0x60]
mov dword [esp + 0x10], ebx
add esi, dword [esp + 0x34]
lea edx, [esi + edx + 0x5a827999]
rol edx, 9
mov esi, edx
mov ebp, edx
and ebp, edi
or esi, edi
and esi, ebx
or esi, ebp
add esi, dword [esp + 0x3c]
lea esi, [esi + ecx + 0x5a827999]
mov ecx, edx
rol esi, 0xd
or ecx, esi
and ecx, ebx
mov ebx, edx
and ebx, esi
or ecx, ebx
add ecx, dword [esp + 0x20]
mov ebx, esi
lea edi, [ecx + edi + 0x5a827999]
rol edi, 3
and ebx, edi
mov ecx, esi
or ecx, edi
mov dword [esp + 0x60], ebx
mov ebp, ecx
and ebp, edx
or ebp, ebx
add ebp, dword [esp + 0x28]
mov ebx, dword [esp + 0x10]
lea ebx, [ebx + ebp + 0x5a827999]
rol ebx, 5
and ecx, ebx
or ecx, dword [esp + 0x60]
mov dword [esp + 0x10], ebx
add ecx, dword [esp + 0x24]
lea ecx, [ecx + edx + 0x5a827999]
rol ecx, 9
mov edx, ecx
or edx, edi
and edx, ebx
mov ebp, ecx
and ebp, edi
or edx, ebp
add edx, dword [esp + 0x2c]
lea esi, [edx + esi + 0x5a827999]
rol esi, 0xd
mov edx, ecx
or edx, esi
and edx, ebx
mov ebx, ecx
and ebx, esi
or edx, ebx
add edx, dword [esp + 0x40]
mov ebx, esi
lea edi, [edx + edi + 0x5a827999]
rol edi, 3
mov edx, esi
or edx, edi
and ebx, edi
mov ebp, edx
and ebp, ecx
or ebp, ebx
add ebp, dword [esp + 0x48]
mov dword [esp + 0x60], ebx
mov ebx, dword [esp + 0x10]
lea ebx, [ebx + ebp + 0x5a827999]
rol ebx, 5
and edx, ebx
or edx, dword [esp + 0x60]
add edx, dword [esp + 0x44]
lea ecx, [edx + ecx + 0x5a827999]
rol ecx, 9
mov edx, ecx
or edx, edi
and edx, ebx
mov ebp, ecx
and ebp, edi
or edx, ebp
add edx, dword [esp + 0x4c]
lea esi, [edx + esi + 0x5a827999]
rol esi, 0xd
mov edx, ebx
xor edx, ecx
xor edx, esi
add edx, dword [esp + 0x50]
lea edi, [edx + edi + 0x6ed9eba1]
rol edi, 3
mov edx, ecx
xor edx, esi
xor edx, edi
add edx, dword [esp + 0x14]
lea ebx, [edx + ebx + 0x6ed9eba1]
rol ebx, 9
mov edx, ebx
xor edx, esi
xor edx, edi
add edx, dword [esp + 0x18]
lea ecx, [edx + ecx + 0x6ed9eba1]
rol ecx, 0xb
mov edx, ebx
xor edx, ecx
mov ebp, edx
xor ebp, edi
add ebp, dword [esp + 0x1c]
lea esi, [esi + ebp + 0x6ed9eba1]
rol esi, 0xf
xor edx, esi
add edx, dword [esp + 0x20]
lea edx, [edx + edi + 0x6ed9eba1]
rol edx, 3
mov edi, ecx
xor edi, esi
xor edi, edx
add edi, dword [esp + 0x24]
lea ebx, [edi + ebx + 0x6ed9eba1]
rol ebx, 9
mov edi, ebx
xor edi, esi
xor edi, edx
add edi, dword [esp + 0x28]
lea edi, [edi + ecx + 0x6ed9eba1]
rol edi, 0xb
mov ecx, ebx
xor ecx, edi
mov ebp, ecx
xor ebp, edx
add ebp, dword [esp + 0x2c]
lea esi, [esi + ebp + 0x6ed9eba1]
rol esi, 0xf
xor ecx, esi
add ecx, dword [esp + 0x30]
lea ecx, [ecx + edx + 0x6ed9eba1]
rol ecx, 3
mov edx, edi
xor edx, esi
xor edx, ecx
add edx, dword [esp + 0x34]
lea ebx, [edx + ebx + 0x6ed9eba1]
rol ebx, 9
mov edx, ebx
xor edx, esi
xor edx, ecx
add edx, dword [esp + 0x38]
lea edi, [edx + edi + 0x6ed9eba1]
rol edi, 0xb
mov edx, ebx
xor edx, edi
mov ebp, edx
xor ebp, ecx
add ebp, dword [esp + 0x3c]
lea esi, [esi + ebp + 0x6ed9eba1]
rol esi, 0xf
xor edx, esi
add edx, dword [esp + 0x40]
lea edx, [edx + ecx + 0x6ed9eba1]
rol edx, 3
mov ecx, edi
xor ecx, esi
xor ecx, edx
add ecx, dword [esp + 0x44]
lea ebx, [ecx + ebx + 0x6ed9eba1]
rol ebx, 9
mov ecx, ebx
xor ecx, esi
xor ecx, edx
add ecx, dword [esp + 0x48]
lea ebp, [ecx + edi + 0x6ed9eba1]
rol ebp, 0xb
mov ecx, ebx
xor ecx, ebp
xor ecx, edx
add ecx, dword [esp + 0x4c]
lea esi, [ecx + esi + 0x6ed9eba1]
mov ecx, dword [esp + 0x5c]
add dword [ecx], edx
mov edx, dword [ecx]
add dword [ecx + 8], ebp
add dword [ecx + 0xc], ebx
mov ebp, dword [ecx + 8]
mov edi, dword [ecx + 0xc]
rol esi, 0xf
add dword [ecx + 4], esi
cmp dword [esp + 0x64], 0
mov dword [esp + 0x60], edx
mov edx, dword [ecx + 4]
jne 0x4d84c0
pop esi
pop ebx
pop edi
pop ebp
add esp, 0x48
ret