Function at 0x50797a
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 0x50799b
mov eax, dword [ebx + 0x84]
sub eax, esi
dec eax
jmp 0x50799d
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 0x507dd3
cmp dword [ebx + 0xe4], edx
jne 0x507dd3
mov eax, dword [ebx + 0xd8]
test al, 2
je 0x507a13
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x507df8
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 0x5079eb
jmp 0x507df8
test eax, 0x100
je 0x507a54
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x507df8
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 0x507a26
jmp 0x507df8
test al, 8
je 0x507a83
cmp ecx, 4
jne 0x507df8
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x507df8
add edi, 3
mov al, byte [ebx + 0xfc]
mov byte [edi], al
lea edi, [edi + 4]
dec ecx
jne 0x507a70
jmp 0x507df8
test al, 0x10
je 0x507c26
cmp ecx, 4
jne 0x507bc7
mov eax, dword [esp + 0x20]
mov dword [esp + 0x14], eax
test eax, eax
je 0x507df8
mov ecx, dword [ebx + 0xfc]
movzx ebp, byte [edi + 3]
test ecx, ecx
jne 0x507ab8
movzx eax, byte [edi + 2]
jmp 0x507af5
test ebp, ebp
jne 0x507ac7
mov eax, dword [ebx + 0xf0]
cdq
idiv ecx
jmp 0x507af5
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 0x507b08
movzx eax, byte [edi + 1]
jmp 0x507b45
test ebp, ebp
jne 0x507b17
mov eax, dword [ebx + 0xf4]
cdq
idiv ecx
jmp 0x507b45
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 0x507b57
movzx eax, byte [edi]
jmp 0x507b93
test ebp, ebp
jne 0x507b66
mov eax, dword [ebx + 0xf8]
cdq
idiv ecx
jmp 0x507b93
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 0x507aa4
jmp 0x507df8
mov esi, dword [esp + 0x20]
test esi, esi
je 0x507df8
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 0x507bd8
jmp 0x507df8
test al, 0x20
je 0x507da6
cmp ecx, 4
jne 0x507d4a
mov eax, dword [esp + 0x20]
mov dword [esp + 0x14], eax
test eax, eax
je 0x507df8
mov ecx, dword [ebx + 0xfc]
movzx ebp, byte [edi + 3]
test ecx, ecx
jne 0x507c5b
movzx eax, byte [edi + 2]
jmp 0x507c98
test ebp, ebp
jne 0x507c6a
mov eax, dword [ebx + 0xf0]
cdq
idiv ecx
jmp 0x507c98
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 0x507cab
movzx eax, byte [edi + 1]
jmp 0x507ce8
test ebp, ebp
jne 0x507cba
mov eax, dword [ebx + 0xf4]
cdq
idiv ecx
jmp 0x507ce8
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 0x507cfa
movzx eax, byte [edi]
jmp 0x507d36
test ebp, ebp
jne 0x507d09
mov eax, dword [ebx + 0xf8]
cdq
idiv ecx
jmp 0x507d36
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 0x507c47
jmp 0x507df8
mov esi, dword [esp + 0x20]
test esi, esi
je 0x507df8
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 0x507d5b
jmp 0x507df8
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x507df8
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 0x507dae
jmp 0x507df8
mov eax, dword [esp + 0x20]
mov dword [esp + 0x14], eax
test eax, eax
je 0x507df8
push edi
push esi
push ebp
push ebx
call fcn.00507e49
add edi, dword [ebx + 0xd4]
add esp, 0x10
inc ebp
dec dword [esp + 0x14]
jne 0x507ddf
pop edi
pop esi
pop ebp
pop ebx
ret