Function at 0x537f40
Capabilities:
Encrypt data using rc4 prga

Disassembly:
sub esp, 0x50
mov eax, dword [ecx + 0x1c]
xorps xmm2, xmm2
mov dword [esp + 8], eax
mov eax, dword [ecx + 0x20]
mov dword [esp + 4], eax
mov eax, dword [esp + 0x54]
push esi
mov esi, edx
mov dword [esp + 0x4c], ecx
push edi
movss xmm1, dword [eax]
mov eax, 0x100
comiss xmm1, xmm2
mov dword [esp + 0x54], esi
mov dword [esp + 0x48], 0xffffffff
mov dword [esp + 0x3c], 1
movss dword [esp + 0x30], xmm2
jbe 0x537fd0
mov edi, dword [esi + 4]
mov edx, dword [esi + 0x1c]
cwde
movzx ecx, byte [edx + edi + 6]
movsx ecx, cx
imul ecx, eax
movzx eax, byte [edx + edi + 7]
movzx edx, byte [edx + edi + 5]
add cx, ax
movsx esi, cx
mov ecx, dword [esp + 0x54]
mov eax, dword [ecx + 0x1c]
movzx ecx, byte [eax + edi + 4]
mov eax, 0x100
cwde
movsx ecx, cx
imul ecx, eax
add dx, cx
movsx eax, dx
sub eax, esi
movd xmm0, eax
jmp 0x537ff0
mov edx, dword [esi + 0x14]
mov eax, dword [esi + 4]
xorps xmm1, xmmword [0x58ad10]
movzx ecx, byte [edx + eax + 0x12]
movzx eax, byte [edx + eax + 0x13]
shl ecx, 8
add ecx, eax
movd xmm0, ecx
mov edx, dword [esp + 0x5c]
mov ecx, dword [esp + 0x50]
cvtdq2ps xmm0, xmm0
movzx edi, byte [edx + 0x14]
mov eax, edi
mov dword [ecx + 0x1c], edi
movzx esi, byte [edx + 0x15]
movss xmm4, dword [0x58a8e4]
divss xmm1, xmm0
shr eax, 0x1f
mov dword [ecx + 0x20], esi
movd xmm0, edi
movaps xmm3, xmm4
cvtdq2pd xmm0, xmm0
movss dword [esp + 0x44], xmm1
addsd xmm0, qword [eax*8 + 0x58aca0]
mov eax, esi
shr eax, 0x1f
cvtpd2ps xmm0, xmm0
divss xmm3, xmm0
movd xmm0, esi
movss dword [esp + 0x1c], xmm3
cvtdq2pd xmm0, xmm0
addsd xmm0, qword [eax*8 + 0x58aca0]
mov eax, 1
cvtpd2ps xmm0, xmm0
divss xmm4, xmm0
movss dword [esp + 0x14], xmm4
test edi, edi
je 0x53808c
movd xmm0, edi
sub eax, edi
cvtdq2ps xmm0, xmm0
movd xmm2, eax
mov eax, 1
cvtdq2ps xmm2, xmm2
addss xmm0, xmm0
divss xmm2, xmm0
movss dword [esp + 0x34], xmm2
test esi, esi
je 0x5380b4
movd xmm0, esi
sub eax, esi
cvtdq2ps xmm0, xmm0
movd xmm2, eax
cvtdq2ps xmm2, xmm2
addss xmm0, xmm0
divss xmm2, xmm0
movss dword [esp + 0x30], xmm2
xor esi, esi
mov dword [esp + 0x2c], esi
cmp dword [edx + 0xc], esi
jle 0x53845a
mov edi, dword [esp + 0x64]
add edi, 0xc
nop word [eax + eax]
mov eax, dword [edi + 8]
test eax, eax
je 0x5383ea
cmp dword [edi - 8], 0
je 0x5383ea
cmp dword [edi - 4], 0
je 0x5383ea
lea eax, [esi*8]
sub eax, esi
mov dword [esp + 0x24], eax
mov eax, dword [edx + 0x10]
mov dword [esp + 0x40], eax
mov eax, dword [edx + 8]
test eax, eax
jne 0x538111
mov edx, dword [edx + 4]
add edx, esi
jmp 0x538114
mov edx, dword [eax + esi*4]
mov ecx, dword [esp + 0x54]
call fcn.005322c0
mov esi, dword [esp + 0x50]
mov dword [esp + 0x4c], eax
mov eax, dword [esp + 0x54]
mov ecx, dword [esi + 0x14]
add dword [edi], ecx
add dword [edi + 4], ecx
sub dword [edi - 8], ecx
sub dword [edi - 4], ecx
mov edx, dword [eax + 4]
mov eax, dword [eax + 0x1c]
movzx ecx, byte [eax + edx + 0x22]
movzx eax, byte [eax + edx + 0x23]
shl ecx, 8
add eax, ecx
mov ecx, dword [esp + 0x4c]
mov dword [esp + 0x38], eax
mov eax, dword [esp + 0x54]
mov eax, dword [eax + 0x20]
cmp ecx, dword [esp + 0x38]
jge 0x53817c
lea edx, [edx + ecx*4]
movzx ecx, byte [edx + eax]
add edx, eax
movsx ecx, cx
mov eax, 0x100
cwde
imul ecx, eax
movzx eax, byte [edx + 1]
jmp 0x5381a4
mov ecx, dword [esp + 0x38]
mov esi, dword [esp + 0x54]
lea edx, [edx + ecx*4]
movzx ecx, byte [edx + eax - 4]
mov eax, 0x100
cwde
movsx ecx, cx
imul ecx, eax
mov eax, dword [esi + 0x20]
mov esi, dword [esp + 0x50]
movzx eax, byte [edx + eax - 3]
add cx, ax
mov edx, dword [esp + 0x4c]
movzx eax, cx
cwde
mov dword [esp + 0x28], eax
lea eax, [esp + 0x38]
push eax
lea eax, [esp + 0xc]
mov ecx, dword [esp + 0x58]
push eax
lea eax, [esp + 0x20]
push eax
lea eax, [esp + 0x2c]
push eax
mov eax, dword [esi + 0x20]
sub esp, 8
movd xmm0, eax
cvtdq2pd xmm0, xmm0
shr eax, 0x1f
mov dword [esp + 4], 0
mov dword [esp], 0
addsd xmm0, qword [eax*8 + 0x58aca0]
mov eax, dword [esi + 0x1c]
cvtpd2ps xmm3, xmm0
movd xmm0, eax
cvtdq2pd xmm0, xmm0
shr eax, 0x1f
mulss xmm3, xmm1
addsd xmm0, qword [eax*8 + 0x58aca0]
cvtpd2ps xmm2, xmm0
mulss xmm2, xmm1
call fcn.00534990
mov ecx, dword [esi + 0x20]
add esp, 0x18
mov edx, dword [esi + 0x1c]
mov eax, ecx
shr eax, 0x1f
mov esi, dword [esi + 0x10]
push dword [esp + 0x4c]
movd xmm0, ecx
cvtdq2pd xmm0, xmm0
sub esp, 0x10
mov dword [esp + 0xc], 0
mov dword [esp + 8], 0
addsd xmm0, qword [eax*8 + 0x58aca0]
mov eax, edx
shr eax, 0x1f
cvtpd2ps xmm0, xmm0
mulss xmm0, dword [esp + 0x58]
movss dword [esp + 4], xmm0
movd xmm0, edx
cvtdq2pd xmm0, xmm0
addsd xmm0, qword [eax*8 + 0x58aca0]
mov eax, dword [edi - 4]
sub eax, ecx
mov ecx, dword [esp + 0x68]
inc eax
cvtpd2ps xmm0, xmm0
mulss xmm0, dword [esp + 0x58]
movss dword [esp], xmm0
push esi
push eax
mov eax, dword [edi - 8]
sub eax, edx
mov edx, dword [edi + 4]
imul edx, esi
inc eax
mov esi, dword [esp + 0x6c]
push eax
add edx, dword [edi]
add edx, dword [esi + 0x24]
call fcn.00537830
mov ecx, dword [esi + 0x1c]
add esp, 0x20
cmp ecx, 1
jbe 0x5382de
mov eax, dword [esi + 0x10]
mov edx, dword [edi - 8]
push ecx
mov ecx, dword [edi + 4]
imul ecx, eax
push eax
push dword [edi - 4]
add ecx, dword [esi + 0x24]
add ecx, dword [edi]
call fcn.00537ab0
add esp, 0xc
mov ecx, dword [esi + 0x20]
cmp ecx, 1
jbe 0x538304
mov eax, dword [esi + 0x10]
mov edx, dword [edi - 8]
push ecx
mov ecx, dword [edi + 4]
imul ecx, eax
push eax
push dword [edi - 4]
add ecx, dword [esi + 0x24]
add ecx, dword [edi]
call fcn.00537d00
add esp, 0xc
mov esi, dword [esp + 0x24]
movzx eax, word [edi]
mov edx, dword [esp + 0x40]
movd xmm0, dword [esp + 0x28]
movss xmm1, dword [esp + 0x44]
mov ecx, dword [esp + 0x20]
cvtdq2ps xmm0, xmm0
mov word [edx + esi*4], ax
movzx eax, word [edi + 4]
mov word [edx + esi*4 + 2], ax
movzx eax, word [edi - 8]
add ax, word [edi]
mulss xmm0, xmm1
mov word [edx + esi*4 + 4], ax
movzx eax, word [edi - 4]
add ax, word [edi + 4]
movss dword [edx + esi*4 + 0x10], xmm0
movd xmm0, ecx
cvtdq2ps xmm0, xmm0
mov word [edx + esi*4 + 6], ax
mov eax, dword [esp + 0x40]
mulss xmm0, dword [esp + 0x1c]
addss xmm0, dword [esp + 0x34]
movss dword [edx + esi*4 + 8], xmm0
mov edx, dword [esp + 0x18]
movd xmm0, edx
cvtdq2ps xmm0, xmm0
mulss xmm0, dword [esp + 0x14]
addss xmm0, dword [esp + 0x30]
movss dword [eax + esi*4 + 0xc], xmm0
mov eax, dword [edi - 8]
add eax, ecx
mov ecx, dword [esp + 0x40]
movd xmm0, eax
cvtdq2ps xmm0, xmm0
mulss xmm0, dword [esp + 0x1c]
addss xmm0, dword [esp + 0x34]
movss dword [ecx + esi*4 + 0x14], xmm0
mov eax, dword [edi - 4]
add eax, edx
cmp dword [esp + 0x4c], 0
mov edx, dword [esp + 0x5c]
movd xmm0, eax
cvtdq2ps xmm0, xmm0
mulss xmm0, dword [esp + 0x14]
addss xmm0, dword [esp + 0x30]
movss dword [ecx + esi*4 + 0x18], xmm0
mov esi, dword [esp + 0x2c]
mov eax, esi
cmovne eax, dword [esp + 0x48]
mov ecx, dword [esp + 0x50]
mov dword [esp + 0x48], eax
jmp 0x538449
cmp dword [ecx + 0x18], 0
jne 0x538441
test eax, eax
je 0x538441
cmp dword [edi - 8], 0
jne 0x538441
cmp dword [edi - 4], 0
jne 0x538441
mov eax, dword [esp + 0x48]
test eax, eax
js 0x538441
mov edx, dword [edx + 0x10]
lea ecx, [esi*8]
shl eax, 3
sub eax, dword [esp + 0x48]
sub ecx, esi
movups xmm0, xmmword [edx + eax*4]
movups xmmword [edx + ecx*4], xmm0
movq xmm0, qword [edx + eax*4 + 0x10]
movq qword [edx + ecx*4 + 0x10], xmm0
mov eax, dword [edx + eax*4 + 0x18]
mov dword [edx + ecx*4 + 0x18], eax
mov ecx, dword [esp + 0x50]
mov edx, dword [esp + 0x5c]
jmp 0x538449
mov dword [esp + 0x3c], 0
inc esi
add edi, 0x18
mov dword [esp + 0x2c], esi
cmp esi, dword [edx + 0xc]
jl 0x5380d0
mov eax, dword [esp + 0x10]
mov dword [ecx + 0x1c], eax
mov eax, dword [esp + 0xc]
pop edi
mov dword [ecx + 0x20], eax
mov eax, dword [esp + 0x38]
pop esi
add esp, 0x50
ret