Function at 0x4015ff
Capabilities:
Encode data using xor
Encrypt data using aes via x86 extensions

Disassembly:
mov ecx, dword [esp + 4]
mov edx, dword [esp + 8]
mov eax, 4
movdqu xmm1, xmmword [edx]
movdqu xmm2, xmmword [edx + 0x10]
movdqu xmm3, xmmword [edx + 0x20]
movdqu xmm4, xmmword [edx + 0x30]
movdqu xmm5, xmmword [edx + 0x40]
movdqu xmm6, xmmword [edx + 0x50]
movdqu xmm7, xmmword [edx + 0x60]
movdqu xmm0, xmmword [ecx]
pxor xmm1, xmm0
pxor xmm2, xmm0
pxor xmm3, xmm0
pxor xmm4, xmm0
pxor xmm5, xmm0
pxor xmm6, xmm0
pxor xmm7, xmm0
movdqu xmm0, xmmword [ecx + 0x10]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
aesenc xmm5, xmm0
aesenc xmm6, xmm0
aesenc xmm7, xmm0
movdqu xmm0, xmmword [ecx + 0x20]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
aesenc xmm5, xmm0
aesenc xmm6, xmm0
aesenc xmm7, xmm0
movdqu xmm0, xmmword [ecx + 0x30]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
aesenc xmm5, xmm0
aesenc xmm6, xmm0
aesenc xmm7, xmm0
movdqu xmm0, xmmword [ecx + 0x40]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
aesenc xmm5, xmm0
aesenc xmm6, xmm0
aesenc xmm7, xmm0
movdqu xmm0, xmmword [ecx + 0x50]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
aesenc xmm5, xmm0
aesenc xmm6, xmm0
aesenc xmm7, xmm0
movdqu xmm0, xmmword [ecx + 0x60]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
aesenc xmm5, xmm0
aesenc xmm6, xmm0
aesenc xmm7, xmm0
movdqu xmm0, xmmword [ecx + 0x70]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
aesenc xmm5, xmm0
aesenc xmm6, xmm0
aesenc xmm7, xmm0
movdqu xmm0, xmmword [ecx + 0x80]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
aesenc xmm5, xmm0
aesenc xmm6, xmm0
aesenc xmm7, xmm0
movdqu xmm0, xmmword [ecx + 0x90]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
aesenc xmm5, xmm0
aesenc xmm6, xmm0
aesenc xmm7, xmm0
movdqu xmm0, xmmword [ecx + 0xa0]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
aesenc xmm5, xmm0
aesenc xmm6, xmm0
aesenc xmm7, xmm0
movdqu xmm0, xmmword [ecx + 0xb0]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
aesenc xmm5, xmm0
aesenc xmm6, xmm0
aesenc xmm7, xmm0
movdqu xmm0, xmmword [ecx + 0xc0]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
aesenc xmm5, xmm0
aesenc xmm6, xmm0
aesenc xmm7, xmm0
movdqu xmm0, xmmword [ecx + 0xd0]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
aesenc xmm5, xmm0
aesenc xmm6, xmm0
aesenc xmm7, xmm0
movdqu xmm0, xmmword [ecx + 0xe0]
aesenclast xmm1, xmm0
aesenclast xmm2, xmm0
aesenclast xmm3, xmm0
aesenclast xmm4, xmm0
aesenclast xmm5, xmm0
aesenclast xmm6, xmm0
aesenclast xmm7, xmm0
movdqu xmmword [edx], xmm1
movdqu xmmword [edx + 0x10], xmm2
movdqu xmmword [edx + 0x20], xmm3
movdqu xmmword [edx + 0x30], xmm4
movdqu xmmword [edx + 0x40], xmm5
movdqu xmmword [edx + 0x50], xmm6
movdqu xmmword [edx + 0x60], xmm7
add edx, 0x70
dec eax
jne 0x40160c
movdqu xmm1, xmmword [edx]
movdqu xmm2, xmmword [edx + 0x10]
movdqu xmm3, xmmword [edx + 0x20]
movdqu xmm4, xmmword [edx + 0x30]
movdqu xmm0, xmmword [ecx]
pxor xmm1, xmm0
pxor xmm2, xmm0
pxor xmm3, xmm0
pxor xmm4, xmm0
movdqu xmm0, xmmword [ecx + 0x10]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
movdqu xmm0, xmmword [ecx + 0x20]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
movdqu xmm0, xmmword [ecx + 0x30]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
movdqu xmm0, xmmword [ecx + 0x40]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
movdqu xmm0, xmmword [ecx + 0x50]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
movdqu xmm0, xmmword [ecx + 0x60]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
movdqu xmm0, xmmword [ecx + 0x70]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
movdqu xmm0, xmmword [ecx + 0x80]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
movdqu xmm0, xmmword [ecx + 0x90]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
movdqu xmm0, xmmword [ecx + 0xa0]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
movdqu xmm0, xmmword [ecx + 0xb0]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
movdqu xmm0, xmmword [ecx + 0xc0]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
movdqu xmm0, xmmword [ecx + 0xd0]
aesenc xmm1, xmm0
aesenc xmm2, xmm0
aesenc xmm3, xmm0
aesenc xmm4, xmm0
movdqu xmm0, xmmword [ecx + 0xe0]
aesenclast xmm1, xmm0
aesenclast xmm2, xmm0
aesenclast xmm3, xmm0
aesenclast xmm4, xmm0
movdqu xmmword [edx], xmm1
movdqu xmmword [edx + 0x10], xmm2
movdqu xmmword [edx + 0x20], xmm3
movdqu xmmword [edx + 0x30], xmm4
ret