Function at 0x4217d0
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
push esi
push edi
mov edi, dword [ebx + 0xc]
mov esi, ecx
mov dword [ebp - 0x20], esi
cmp edi, 3
jl 0x421bd0
mov ecx, dword [ebx + 0x10]
test ecx, 0xff000000
je 0x421bd0
test byte [esi + 0x24], 4
mov eax, dword [esi + 0x2c]
movss xmm0, dword [eax]
movss dword [ebp - 0x18], xmm0
movss xmm0, dword [eax + 4]
movss dword [ebp - 0x1c], xmm0
je 0x421b2e
movss xmm0, dword [esi + 0x8c]
lea eax, [edi + edi]
push eax
mov dword [ebp - 0x34], eax
and ecx, 0xffffff
lea eax, [edi*8 - 6]
mov dword [ebp - 0x28], ecx
add eax, edi
movss dword [ebp - 0xc], xmm0
push eax
mov ecx, esi
call fcn.00420890
mov eax, dword [esi + 0x28]
movzx edx, ax
mov dword [ebp - 0x14], edx
lea ecx, [eax + 1]
movzx eax, dx
mov dword [ebp - 0x30], ecx
mov ecx, 2
mov dword [ebp - 0x10], ecx
mov dword [ebp - 8], eax
mov eax, dword [esi + 0x38]
mov word [eax], dx
lea edx, [edx + ecx*2]
mov eax, dword [esi + 0x38]
lea ecx, [edx - 2]
mov word [eax + 2], cx
mov eax, dword [esi + 0x38]
mov ecx, dword [ebp - 0x10]
inc ecx
mov dword [ebp - 0x10], ecx
mov word [eax + 4], dx
add dword [esi + 0x38], 6
mov edx, dword [ebp - 0x14]
cmp ecx, edi
jl 0x421876
mov eax, dword [ebp - 8]
movzx eax, ax
mov dword [ebp - 0x2c], eax
mov eax, dword [esi + 0x2c]
mov dword [ebp - 0x14], eax
cmp edi, dword [eax + 0x30]
jle 0x421902
mov ecx, dword [eax + 0x34]
test ecx, ecx
je 0x4218d6
mov eax, dword [0x4863a0]
test eax, eax
je 0x4218cc
dec dword [eax + 0xb0]
push ecx
call dword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_free]
add esp, 4
mov eax, dword [0x4863a0]
test eax, eax
je 0x4218e5
inc dword [eax + 0xb0]
lea eax, [edi*8]
push eax
call dword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_malloc]
mov ecx, dword [ebp - 0x14]
add esp, 4
mov dword [ecx + 0x34], eax
mov dword [ecx + 0x30], edi
mov eax, dword [esi + 0x2c]
mov eax, dword [eax + 0x34]
lea ecx, [edi - 1]
movss xmm4, dword [0x43b780]
xor edx, edx
mov esi, dword [ebx + 8]
xorps xmm5, xmm5
mov dword [ebp - 8], ecx
mov dword [ebp - 0x14], eax
shl ecx, 3
movss xmm3, dword [esi + edx*8 + 4]
lea edi, [edx*8]
movss xmm2, dword [esi + edx*8]
subss xmm2, dword [ecx + esi]
subss xmm3, dword [ecx + esi + 4]
mov dword [ebp - 4], edi
lea edi, [esi + 4]
mov dword [ebp - 0x10], edi
mov edi, dword [ebx + 0xc]
movaps xmm0, xmm2
movaps xmm1, xmm3
mulss xmm0, xmm2
mulss xmm1, xmm3
addss xmm1, xmm0
comiss xmm1, xmm5
jbe 0x421970
rsqrtss xmm1, xmm1
movaps xmm0, xmm1
mulss xmm3, xmm1
mulss xmm2, xmm0
xorps xmm2, xmm4
movss dword [ecx + eax], xmm3
inc edx
movss dword [ecx + eax + 4], xmm2
mov ecx, dword [ebp - 4]
cmp edx, edi
jl 0x421921
movss xmm0, dword [ebp - 0xc]
lea edx, [edi - 1]
movss xmm4, dword [0x43b310]
mov ecx, eax
movss xmm5, dword [0x43b2d8]
sub ecx, esi
movss xmm6, dword [0x43b348]
movss xmm7, dword [0x43b3c4]
mov esi, dword [ebp - 0x20]
mulss xmm0, xmm4
mov dword [ebp - 0x24], ecx
mov ecx, dword [ebp - 0x10]
mov dword [ebp - 4], 0
movss dword [ebp - 0xc], xmm0
nop dword [eax + eax]
mov edi, dword [ebp - 4]
movss xmm2, dword [eax + edi*8]
mov edi, dword [ebp - 0x24]
addss xmm2, dword [eax + edx*8]
movss xmm3, dword [edi + ecx]
addss xmm3, dword [eax + edx*8 + 4]
mulss xmm2, xmm4
mulss xmm3, xmm4
movaps xmm0, xmm2
mulss xmm0, xmm2
movaps xmm1, xmm3
mulss xmm1, xmm3
addss xmm1, xmm0
comiss xmm1, xmm5
jbe 0x421a23
movaps xmm0, xmm6
divss xmm0, xmm1
movaps xmm1, xmm7
minss xmm1, xmm0
movaps xmm0, xmm1
mulss xmm3, xmm1
mulss xmm2, xmm0
movss xmm0, dword [ecx - 4]
mov eax, dword [esi + 0x34]
movss xmm1, dword [ebp - 0xc]
mulss xmm1, xmm2
mov edx, dword [ebx + 0x10]
movss xmm2, dword [ebp - 0xc]
mulss xmm2, xmm3
mov edi, dword [ebp - 0x30]
movss xmm3, dword [ebp - 0x1c]
subss xmm0, xmm1
movss dword [eax], xmm0
movss xmm0, dword [ecx]
mov eax, dword [esi + 0x34]
subss xmm0, xmm2
movss dword [eax + 4], xmm0
mov eax, dword [esi + 0x34]
movss xmm0, dword [ebp - 0x18]
movss dword [eax + 8], xmm0
movss dword [eax + 0xc], xmm3
mov eax, dword [esi + 0x34]
mov dword [eax + 0x10], edx
addss xmm1, dword [ecx - 4]
mov eax, dword [esi + 0x34]
movss dword [eax + 0x14], xmm1
addss xmm2, dword [ecx]
mov eax, dword [esi + 0x34]
mov ecx, dword [ebp - 0x28]
movss dword [eax + 0x18], xmm2
mov eax, dword [esi + 0x34]
movss dword [eax + 0x1c], xmm0
movss dword [eax + 0x20], xmm3
mov eax, dword [esi + 0x34]
mov dword [eax + 0x24], ecx
mov eax, dword [ebp - 4]
mov ecx, dword [ebp - 0x2c]
add dword [esi + 0x34], 0x28
lea edx, [ecx + eax*2]
mov eax, dword [esi + 0x38]
mov word [eax], dx
mov eax, dword [ebp - 8]
lea ecx, [ecx + eax*2]
mov eax, dword [esi + 0x38]
mov word [eax + 2], cx
mov eax, dword [ebp - 8]
movzx ecx, di
lea ecx, [ecx + eax*2]
mov eax, dword [esi + 0x38]
mov word [eax + 4], cx
mov eax, dword [esi + 0x38]
mov word [eax + 6], cx
mov eax, dword [ebp - 4]
movzx ecx, di
lea ecx, [ecx + eax*2]
mov eax, dword [esi + 0x38]
mov word [eax + 8], cx
mov eax, dword [esi + 0x38]
mov ecx, dword [ebp - 0x10]
add ecx, 8
mov dword [ebp - 0x10], ecx
mov word [eax + 0xa], dx
mov eax, dword [ebp - 4]
mov edx, eax
add dword [esi + 0x38], 0xc
inc eax
cmp eax, dword [ebx + 0xc]
mov dword [ebp - 4], eax
mov eax, dword [ebp - 0x14]
mov dword [ebp - 8], edx
jl 0x4219d0
mov eax, dword [ebp - 0x34]
movzx eax, ax
add dword [esi + 0x28], eax
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret 0xc
lea eax, [edi - 2]
mov ecx, esi
push edi
lea eax, [eax + eax*2]
push eax
call fcn.00420890
movss xmm0, dword [ebp - 0x18]
movss xmm1, dword [ebp - 0x1c]
mov dword [ebp - 0x14], edi
mov edi, dword [ebx + 8]
nop dword [eax]
mov eax, dword [esi + 0x34]
lea edi, [edi + 8]
mov ecx, dword [edi - 8]
mov edx, dword [edi - 4]
mov dword [eax], ecx
mov ecx, dword [ebx + 0x10]
mov dword [eax + 4], edx
mov eax, dword [esi + 0x34]
movss dword [eax + 8], xmm0
movss dword [eax + 0xc], xmm1
mov eax, dword [esi + 0x34]
mov dword [eax + 0x10], ecx
add dword [esi + 0x34], 0x14
sub dword [ebp - 0x14], 1
jne 0x421b50
mov edi, dword [ebx + 0xc]
mov edx, 2
mov dword [ebp - 0x1c], edx
nop dword [eax]
mov ecx, dword [esi + 0x38]
mov ax, word [esi + 0x28]
movzx edx, dx
mov word [ecx], ax
movzx ecx, word [esi + 0x28]
mov eax, dword [esi + 0x38]
dec cx
add cx, dx
mov word [eax + 2], cx
movzx ecx, word [esi + 0x28]
mov eax, dword [esi + 0x38]
add cx, dx
mov edx, dword [ebp - 0x1c]
inc edx
mov dword [ebp - 0x1c], edx
mov word [eax + 4], cx
add dword [esi + 0x38], 6
cmp edx, edi
jl 0x421b90
movzx eax, di
add dword [esi + 0x28], eax
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret 0xc