Function at 0x100ac080
Capabilities:
Encode data using xor

Disassembly:
mov edx, dword [esp + 8]
sub esp, 0x1c
push ebx
mov ebx, dword [esp + 0x24]
push edi
mov dword [ebx], 0x4000400
test edx, edx
je 0x100ac0c1
lea eax, [ebx + 0x104]
mov ecx, edx
nop
movaps xmm0, xmmword [0x101b90b0]
lea eax, [eax + 0x10]
movups xmmword [eax - 0x110], xmm0
movaps xmm0, xmmword [0x101b90b0]
movups xmmword [eax - 0x10], xmm0
sub ecx, 1
jne 0x100ac0a0
cmp byte [esp + 0x30], 0
lea edi, [ebx + 0x204]
mov ecx, pe_nt_image_headers32
mov eax, 0x4000400
rep stosd dword es:[edi], eax
jne 0x100ac2c5
mov dword [esp + 8], 0
test edx, edx
je 0x100ac2c5
push ebp
lea ebp, [ebx + 0x404]
lea ecx, [ebx + 0x4808]
mov dword [esp + 0x10], ebp
push esi
mov dword [esp + 0x1c], ecx
mov edi, dword [ebx + 0x4804]
xor esi, esi
mov dword [ecx], edi
movzx ecx, word [ebx]
mov eax, ecx
mov dword [esp + 0x30], edi
shr eax, 4
xor ecx, 0x7f0
shr ecx, 4
mov dword [esp + 0x38], esi
movzx eax, byte [eax + 0x101b9338]
movzx edx, byte [ecx + 0x101b9338]
movzx ecx, word [ebx + 2]
mov dword [esp + 0x20], eax
mov eax, ecx
shr eax, 4
xor ecx, 0x7f0
shr ecx, 4
movzx eax, byte [eax + 0x101b9338]
add eax, edx
mov dword [esp + 0x24], eax
movzx eax, byte [ecx + 0x101b9338]
add eax, edx
mov dword [esp + 0x28], eax
test edi, edi
je 0x100ac29b
mov edi, dword [esp + 0x10]
mov eax, dword [esp + 0x30]
shl edi, 3
mov dword [esp + 0x18], edi
nop dword [eax]
cmp esi, 8
jae 0x100ac1e5
lea edx, [esi + 8]
xor ebp, ebp
mov esi, dword [esp + 0x10]
nop
mov ecx, edx
lea edi, [esi*8]
shr edx, 1
and ecx, 1
neg ecx
shr ecx, 4
and ecx, 0x7f
lea eax, [edi + edx]
movzx eax, word [ebx + eax*2 + 4]
shr eax, 4
xor eax, ecx
movzx eax, byte [eax + 0x101b9338]
add ebp, eax
cmp edx, 1
jne 0x100ac190
mov eax, dword [esp + 0x20]
mov esi, dword [esp + 0x38]
add eax, ebp
mov ebp, dword [esp + 0x14]
mov dword [ebp + esi*4], eax
inc esi
mov eax, dword [esp + 0x30]
mov dword [esp + 0x38], esi
cmp esi, eax
jb 0x100ac180
jmp 0x100ac29b
cmp esi, eax
jae 0x100ac29b
nop dword [eax]
cmp esi, 0x10
jae 0x100ac252
mov edx, esi
xor ebp, ebp
mov esi, dword [esp + 0x18]
nop dword [eax]
mov ecx, edx
shr edx, 1
and ecx, 1
neg ecx
shr ecx, 4
lea eax, [edi + edx]
and ecx, 0x7f
movzx eax, word [ebx + eax*2 + 0x104]
mov edi, esi
shr eax, 4
xor eax, ecx
movzx eax, byte [eax + 0x101b9338]
add ebp, eax
cmp edx, 1
jne 0x100ac200
mov eax, dword [esp + 0x24]
mov esi, dword [esp + 0x38]
add eax, ebp
mov ebp, dword [esp + 0x14]
mov edi, dword [esp + 0x18]
mov dword [ebp + esi*4], eax
inc esi
mov dword [esp + 0x38], esi
cmp esi, dword [esp + 0x30]
jb 0x100ac1f0
jmp 0x100ac29b
xor edi, edi
lea eax, [esi + 0xf0]
nop word [eax + eax]
mov edx, eax
shr eax, 1
and edx, 1
neg edx
shr edx, 4
movzx ecx, word [ebx + eax*2 + 0x204]
and edx, 0x7f
shr ecx, 4
xor ecx, edx
movzx ecx, byte [ecx + 0x101b9338]
add edi, ecx
cmp eax, 1
jne 0x100ac260
mov eax, dword [esp + 0x28]
add eax, edi
mov dword [ebp + esi*4], eax
inc esi
cmp esi, dword [esp + 0x30]
jb 0x100ac252
mov eax, dword [esp + 0x10]
add ebp, 0x440
mov ecx, dword [esp + 0x1c]
inc eax
add ecx, 4
mov dword [esp + 0x10], eax
mov dword [esp + 0x1c], ecx
mov dword [esp + 0x14], ebp
cmp eax, dword [esp + 0x34]
jb 0x100ac104
pop esi
pop ebp
pop edi
pop ebx
add esp, 0x1c
ret