Function at 0x421490
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebx
mov ebx, esp
sub esp, 8
and esp, 0xfffffff8
add esp, 4
push ebp
mov ebp, dword [ebx + 4]
mov dword [esp + 4], ebp
mov ebp, esp
sub esp, 0x38
mov eax, dword [0x49c00c]
xor eax, ebp
mov dword [ebp - 4], eax
push esi
push edi
mov edi, dword [ebx + 0xc]
mov esi, ecx
mov dword [ebp - 0x30], esi
cmp edi, 3
jl 0x421820
test byte [esi + 0x24], 4
mov eax, dword [esi + 0x28]
mov ecx, dword [eax]
mov eax, dword [eax + 4]
mov dword [ebp - 0x14], ecx
mov ecx, esi
mov dword [ebp - 0x1c], eax
je 0x421780
mov eax, dword [ebx + 0x10]
and eax, 0xffffff
mov dword [ebp - 0x34], eax
lea eax, [edi + edi]
push eax
mov dword [ebp - 0x20], eax
lea eax, [edi*8 - 6]
add eax, edi
push eax
call fcn.00420330
mov edx, dword [esi + 0x30]
mov ecx, 2
mov dword [ebp - 8], edx
mov dword [ebp - 0x10], ecx
cmp edi, ecx
jle 0x42154d
jmp 0x421518
mov edx, dword [ebp - 8]
mov eax, dword [esi + 0x38]
mov word [eax], dx
mov eax, dword [esi + 0x38]
movzx edx, cx
mov ecx, dword [ebp - 8]
add ecx, 0xfffffffe
lea ecx, [ecx + edx*2]
mov word [eax + 2], cx
mov eax, dword [ebp - 8]
lea ecx, [eax + edx*2]
mov eax, dword [esi + 0x38]
mov word [eax + 4], cx
mov ecx, dword [ebp - 0x10]
add dword [esi + 0x38], 6
inc ecx
mov dword [ebp - 0x10], ecx
cmp ecx, edi
jl 0x421515
lea eax, [edi*8]
call fcn.00477820
xor ecx, ecx
lea edx, [edi - 1]
mov dword [ebp - 0x18], edx
mov eax, esp
mov dword [ebp - 0x24], ecx
test edi, edi
jle 0x421620
lea eax, [edx*8]
xorps xmm4, xmm4
mov edx, dword [ebx + 8]
mov dword [ebp - 0xc], eax
nop
movss xmm2, dword [edx + ecx*8]
lea esi, [ecx*8]
movss xmm1, dword [edx + ecx*8 + 4]
subss xmm2, dword [eax + edx]
subss xmm1, dword [eax + edx + 4]
movaps xmm0, xmm2
movss dword [ebp - 0x28], xmm2
movaps xmm3, xmm1
mulss xmm0, xmm2
mulss xmm3, xmm1
movss dword [ebp - 0x2c], xmm1
addss xmm3, xmm0
comiss xmm3, xmm4
jbe 0x4215f3
cvtps2pd xmm0, xmm3
call fcn.0047aed0
movss xmm1, dword [0x491374]
xorps xmm4, xmm4
cvtsd2ss xmm0, xmm0
mov eax, dword [ebp - 0xc]
mov ecx, dword [ebp - 0x24]
mov edx, dword [ebx + 8]
movss xmm2, dword [ebp - 0x28]
divss xmm1, xmm0
movaps xmm0, xmm1
mulss xmm1, dword [ebp - 0x2c]
mulss xmm2, xmm0
xorps xmm2, xmmword [0x491db0]
mov edi, esp
inc ecx
mov dword [ebp - 0x24], ecx
movss dword [eax + edi], xmm1
movss dword [eax + edi + 4], xmm2
mov eax, esi
mov edi, dword [ebx + 0xc]
mov dword [ebp - 0xc], eax
cmp ecx, edi
jl 0x421580
mov esi, dword [ebp - 0x30]
mov eax, esp
xor edx, edx
mov dword [ebp - 0xc], edx
test edi, edi
jle 0x421775
movss xmm5, dword [0x491340]
mov ecx, dword [ebp - 0x18]
nop dword [eax + eax]
movss xmm2, dword [eax + edx*8]
addss xmm2, dword [eax + ecx*8]
movss xmm3, dword [eax + edx*8 + 4]
addss xmm3, dword [eax + ecx*8 + 4]
movss xmm4, dword [0x491374]
mov eax, dword [esi + 0x34]
mulss xmm2, xmm5
mov ecx, dword [ebx + 8]
mulss xmm3, xmm5
mov edi, dword [ebp - 0x1c]
movaps xmm0, xmm2
mulss xmm0, xmm2
movaps xmm1, xmm3
mulss xmm1, xmm3
addss xmm1, xmm0
movaps xmm0, xmm5
maxss xmm0, xmm1
divss xmm4, xmm0
movss xmm0, dword [ecx + edx*8]
movaps xmm1, xmm4
mulss xmm4, xmm3
mulss xmm1, xmm2
mulss xmm4, xmm5
mulss xmm1, xmm5
subss xmm0, xmm1
movss dword [eax], xmm0
movss xmm0, dword [ecx + edx*8 + 4]
mov eax, dword [esi + 0x34]
subss xmm0, xmm4
mov edx, dword [ebp - 0x14]
movss dword [eax + 4], xmm0
mov eax, dword [esi + 0x34]
mov dword [eax + 8], edx
mov dword [eax + 0xc], edi
mov eax, dword [esi + 0x34]
mov edi, dword [ebx + 0x10]
mov dword [eax + 0x10], edi
mov edi, dword [ebp - 0xc]
mov eax, dword [esi + 0x34]
movss xmm0, dword [ecx + edi*8]
addss xmm0, xmm1
movss dword [eax + 0x14], xmm0
movss xmm0, dword [ecx + edi*8 + 4]
mov eax, dword [esi + 0x34]
addss xmm0, xmm4
mov ecx, dword [ebp - 0x1c]
movss dword [eax + 0x18], xmm0
mov eax, dword [esi + 0x34]
mov dword [eax + 0x1c], edx
mov dword [eax + 0x20], ecx
mov eax, dword [esi + 0x34]
mov ecx, dword [ebp - 0x34]
mov dword [eax + 0x24], ecx
mov eax, dword [esi + 0x38]
mov ecx, dword [ebp - 8]
add dword [esi + 0x34], 0x28
lea edx, [ecx + edi*2]
mov word [eax], dx
mov eax, dword [ebp - 0x18]
lea ecx, [ecx + eax*2]
mov eax, dword [esi + 0x38]
mov word [eax + 2], cx
mov ecx, dword [ebp - 0x18]
mov eax, dword [esi + 0x38]
lea ecx, [ecx*2 + 1]
add ecx, dword [ebp - 8]
mov word [eax + 4], cx
mov eax, dword [esi + 0x38]
mov word [eax + 6], cx
mov ecx, dword [ebp - 8]
mov eax, dword [esi + 0x38]
inc ecx
lea ecx, [ecx + edi*2]
mov word [eax + 8], cx
mov eax, dword [esi + 0x38]
mov word [eax + 0xa], dx
mov edx, edi
add dword [esi + 0x38], 0xc
mov ecx, edx
mov dword [ebp - 0x18], ecx
inc edx
mov eax, esp
mov dword [ebp - 0xc], edx
cmp edx, dword [ebx + 0xc]
jl 0x421640
mov eax, dword [ebp - 0x20]
movzx eax, ax
jmp 0x42181d
lea eax, [edi - 2]
push edi
lea eax, [eax + eax*2]
push eax
call fcn.00420330
test edi, edi
jle 0x4217cc
mov edx, dword [ebx + 8]
mov edi, dword [ebx + 0xc]
mov ecx, dword [esi + 0x34]
lea edx, [edx + 8]
mov eax, dword [edx - 8]
mov dword [ecx], eax
mov eax, dword [edx - 4]
mov dword [ecx + 4], eax
mov eax, dword [esi + 0x34]
mov ecx, dword [ebp - 0x14]
mov dword [eax + 8], ecx
mov ecx, dword [ebp - 0x1c]
mov dword [eax + 0xc], ecx
mov eax, dword [esi + 0x34]
mov ecx, dword [ebx + 0x10]
mov dword [eax + 0x10], ecx
add dword [esi + 0x34], 0x14
sub edi, 1
jne 0x421797
mov edi, dword [ebx + 0xc]
mov edx, 2
mov dword [ebp - 0x14], edx
cmp edi, edx
jle 0x42181a
nop dword [eax + eax]
mov ecx, dword [esi + 0x38]
mov ax, word [esi + 0x30]
movzx edx, dx
mov word [ecx], ax
movzx ecx, word [esi + 0x30]
mov eax, dword [esi + 0x38]
dec cx
add cx, dx
mov word [eax + 2], cx
movzx ecx, word [esi + 0x30]
mov eax, dword [esi + 0x38]
add cx, dx
mov edx, dword [ebp - 0x14]
inc edx
mov dword [ebp - 0x14], edx
mov word [eax + 4], cx
add dword [esi + 0x38], 6
cmp edx, edi
jl 0x4217e0
movzx eax, di
add dword [esi + 0x30], eax
lea esp, [ebp - 0x40]
pop edi
pop esi
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.0043eeb1
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret 0xc