Function at 0x4233be
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
push ecx
push ebx
push edi
mov edi, dword [ebp + 8]
test edi, edi
je 0x4238b3
mov ebx, dword [ebp + 0x14]
test ebx, ebx
jne 0x4233e5
push 0x82
mov ecx, str.skey___NULL
jmp 0x4238bd
mov ecx, dword [ebp + 0xc]
cmp ecx, 0x10
je 0x4233ff
cmp ecx, 0x18
je 0x4233ff
cmp ecx, 0x20
je 0x4233ff
push 3
pop eax
jmp 0x4238af
cmp dword [ebp + 0x10], 0
je 0x423420
mov eax, ecx
cdq
and edx, 7
add eax, edx
sar eax, 3
lea eax, [eax*2 + 6]
cmp dword [ebp + 0x10], eax
je 0x423420
push 4
jmp 0x4233f9
mov eax, ecx
cdq
and edx, 7
add eax, edx
sar eax, 3
push esi
lea esi, [ebx + 4]
lea eax, [eax*2 + 6]
mov dword [ebx + 0x1e0], eax
movzx ecx, byte [edi]
movzx eax, byte [edi + 1]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 2]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 3]
shl ecx, 8
or ecx, eax
mov dword [ebx], ecx
movzx eax, byte [edi + 5]
mov dword [ebp + 8], ecx
movzx ecx, byte [edi + 4]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 6]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 7]
shl ecx, 8
or ecx, eax
mov dword [esi], ecx
movzx ecx, byte [edi + 8]
movzx eax, byte [edi + 9]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0xa]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0xb]
shl ecx, 8
or ecx, eax
mov dword [ebx + 8], ecx
movzx ecx, byte [edi + 0xc]
movzx eax, byte [edi + 0xd]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0xe]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0xf]
shl ecx, 8
or ecx, eax
mov eax, dword [ebp + 0xc]
mov dword [ebp - 4], ecx
mov dword [ebx + 0xc], ecx
cmp eax, 0x10
jne 0x423535
call fcn.00423385
xor eax, dword [ebp + 8]
mov edi, 0x42e874
mov ecx, dword [esi]
xor eax, 0x1000000
xor ecx, eax
mov dword [ebx + 0x10], eax
mov eax, dword [ebx + 8]
xor eax, ecx
mov dword [ebx + 0x14], ecx
mov dword [ebx + 0x18], eax
xor eax, dword [ebp - 4]
mov dword [ebx + 0x1c], eax
lea esi, [esi + 0x10]
mov ecx, dword [esi + 8]
call fcn.00423385
xor eax, dword [esi - 4]
xor eax, dword [edi]
mov dword [esi + 0xc], eax
mov ecx, dword [esi]
xor ecx, eax
mov dword [esi + 0x10], ecx
mov edx, dword [esi + 4]
xor edx, ecx
push 4
mov dword [esi + 0x14], edx
mov eax, dword [esi + 8]
pop ecx
xor eax, edx
add edi, ecx
mov dword [esi + 0x18], eax
cmp edi, 0x42e898
jne 0x4234f9
jmp 0x423742
cmp eax, 0x18
jne 0x423610
movzx ecx, byte [edi + 0x10]
movzx eax, byte [edi + 0x11]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0x12]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0x13]
shl ecx, 8
or ecx, eax
mov dword [ebx + 0x10], ecx
movzx ecx, byte [edi + 0x14]
movzx eax, byte [edi + 0x15]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0x16]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0x17]
shl ecx, 8
or ecx, eax
mov dword [ebx + 0x14], ecx
call fcn.00423385
xor eax, dword [ebp + 8]
mov edi, 0x42e874
mov ecx, dword [esi]
xor eax, 0x1000000
mov edx, dword [ebx + 8]
lea esi, [ebx + 0x28]
xor ecx, eax
mov dword [ebx + 0x18], eax
mov eax, dword [ebx + 0xc]
xor edx, ecx
xor eax, edx
mov dword [ebx + 0x20], edx
push 0xffffffffffffffd8
pop edx
sub edx, ebx
mov dword [ebx + 0x1c], ecx
mov dword [ebx + 0x24], eax
mov dword [ebp + 8], edx
mov ecx, dword [esi - 0x18]
xor ecx, dword [esi - 4]
mov eax, dword [esi - 0x14]
xor eax, ecx
mov dword [esi], ecx
mov dword [esi + 4], eax
lea esi, [esi + 0x18]
lea ecx, [esi + edx]
sar ecx, 2
mov ecx, dword [ebx + ecx*4 + 0x14]
call fcn.00423385
xor eax, dword [esi - 0x28]
xor eax, dword [edi]
mov dword [esi - 0x10], eax
mov ecx, dword [esi - 0x24]
xor ecx, eax
mov dword [esi - 0xc], ecx
mov edx, dword [esi - 0x20]
xor edx, ecx
mov dword [esi - 8], edx
mov eax, dword [esi - 0x1c]
push 4
pop ecx
xor eax, edx
add edi, ecx
mov edx, dword [ebp + 8]
mov dword [esi - 4], eax
cmp edi, 0x42e890
jne 0x4235b9
jmp 0x423742
cmp eax, 0x20
jne 0x4238ab
movzx ecx, byte [edi + 0x10]
movzx eax, byte [edi + 0x11]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0x12]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0x13]
shl ecx, 8
or ecx, eax
mov dword [ebx + 0x10], ecx
movzx ecx, byte [edi + 0x14]
movzx eax, byte [edi + 0x15]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0x16]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0x17]
shl ecx, 8
or ecx, eax
mov dword [ebx + 0x14], ecx
movzx ecx, byte [edi + 0x18]
movzx eax, byte [edi + 0x19]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0x1a]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0x1b]
shl ecx, 8
or ecx, eax
mov dword [ebx + 0x18], ecx
movzx ecx, byte [edi + 0x1c]
movzx eax, byte [edi + 0x1d]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0x1e]
shl ecx, 8
or ecx, eax
movzx eax, byte [edi + 0x1f]
shl ecx, 8
or ecx, eax
mov dword [ebx + 0x1c], ecx
call fcn.00423385
xor eax, dword [ebp + 8]
mov edi, 0x42e874
mov ecx, dword [esi]
xor eax, 0x1000000
mov edx, dword [ebx + 8]
lea esi, [ebx + 0x30]
xor ecx, eax
mov dword [ebx + 0x20], eax
mov eax, dword [ebx + 0xc]
xor edx, ecx
xor eax, edx
mov dword [ebx + 0x24], ecx
mov dword [ebx + 0x2c], eax
push 0xffffffffffffffd0
pop eax
sub eax, ebx
mov dword [ebx + 0x28], edx
mov dword [ebp + 8], eax
mov ecx, dword [esi - 4]
ror ecx, 8
call fcn.00423385
xor eax, dword [esi - 0x20]
mov ecx, dword [esi - 0x1c]
mov edx, dword [esi - 0x18]
xor ecx, eax
xor edx, ecx
mov dword [esi], eax
mov eax, dword [esi - 0x14]
lea esi, [esi + 0x20]
mov dword [esi - 0x1c], ecx
xor eax, edx
mov ecx, dword [ebp + 8]
mov dword [esi - 0x18], edx
mov dword [esi - 0x14], eax
lea ecx, [ecx + esi]
sar ecx, 2
mov ecx, dword [ebx + ecx*4 + 0x1c]
call fcn.00423385
xor eax, dword [esi - 0x30]
xor eax, dword [edi]
mov dword [esi - 0x10], eax
mov ecx, dword [esi - 0x2c]
xor ecx, eax
mov dword [esi - 0xc], ecx
mov edx, dword [esi - 0x28]
xor edx, ecx
push 4
mov dword [esi - 8], edx
mov eax, dword [esi - 0x24]
pop ecx
xor eax, edx
add edi, ecx
mov dword [esi - 4], eax
cmp edi, 0x42e88c
jne 0x4236d8
mov eax, dword [ebp + 0xc]
lea esi, [ebx + 0xf0]
add eax, 0x18
lea edi, [ebx + eax*4]
mov eax, dword [edi]
add edi, ecx
mov dword [esi], eax
add esi, ecx
mov eax, dword [edi]
add edi, ecx
mov dword [esi], eax
add esi, ecx
mov eax, dword [edi]
add edi, ecx
mov dword [esi], eax
add esi, ecx
mov eax, dword [edi]
sub edi, 0xc
mov dword [esi], eax
xor eax, eax
inc eax
sub esi, 0xc
mov dword [ebp + 8], eax
cmp dword [ebx + 0x1e0], eax
jle 0x423887
sub edi, 0x10
add esi, 0x10
mov edx, dword [edi]
mov eax, edx
shr eax, 0x10
movzx ecx, al
mov eax, edx
shr eax, 8
movzx eax, al
mov ecx, dword [ecx*4 + 0x42e8a0]
xor ecx, dword [eax*4 + 0x42fd70]
mov eax, edx
shr eax, 0x18
xor ecx, dword [eax*4 + 0x42dc70]
movzx eax, dl
xor ecx, dword [eax*4 + 0x42f0a0]
mov dword [esi], ecx
mov edx, dword [edi + 4]
mov eax, edx
shr eax, 0x10
movzx ecx, al
mov eax, edx
shr eax, 8
movzx eax, al
mov ecx, dword [ecx*4 + 0x42e8a0]
xor ecx, dword [eax*4 + 0x42fd70]
mov eax, edx
shr eax, 0x18
xor ecx, dword [eax*4 + 0x42dc70]
movzx eax, dl
xor ecx, dword [eax*4 + 0x42f0a0]
mov dword [esi + 4], ecx
mov edx, dword [edi + 8]
mov eax, edx
shr eax, 0x10
movzx ecx, al
mov eax, edx
shr eax, 8
movzx eax, al
mov ecx, dword [ecx*4 + 0x42e8a0]
xor ecx, dword [eax*4 + 0x42fd70]
mov eax, edx
shr eax, 0x18
xor ecx, dword [eax*4 + 0x42dc70]
movzx eax, dl
xor ecx, dword [eax*4 + 0x42f0a0]
mov dword [esi + 8], ecx
mov edx, dword [edi + 0xc]
mov eax, edx
shr eax, 0x10
movzx ecx, al
mov eax, edx
shr eax, 8
movzx eax, al
mov ecx, dword [ecx*4 + 0x42e8a0]
xor ecx, dword [eax*4 + 0x42fd70]
mov eax, edx
shr eax, 0x18
xor ecx, dword [eax*4 + 0x42dc70]
movzx eax, dl
xor ecx, dword [eax*4 + 0x42f0a0]
mov eax, dword [ebp + 8]
inc eax
mov dword [esi + 0xc], ecx
mov dword [ebp + 8], eax
cmp eax, dword [ebx + 0x1e0]
jl 0x423785
push 4
pop ecx
sub edi, 0x10
add esi, 0x10
mov eax, dword [edi]
add edi, ecx
mov dword [esi], eax
add esi, ecx
mov eax, dword [edi]
mov dword [esi], eax
mov eax, dword [edi + ecx]
mov dword [esi + ecx], eax
mov eax, dword [edi + ecx + 4]
mov dword [esi + ecx + 4], eax
xor eax, eax
jmp 0x4238ae
xor eax, eax
inc eax
pop esi
pop edi
pop ebx
leave
ret
push 0x81
mov ecx, str.key___NULL
call fcn.0041c461
int3