Function at 0x480b20
Capabilities:
Encrypt data using rc4 ksa

Disassembly:
push ebp
mov ebp, esp
add esp, 0xfffff7bc
mov eax, 0x48612c
push ebx
push esi
push edi
call fcn.004da3d0
mov edx, dword [ebp + 8]
cmp byte [edx + 0x1494], 1
jne 0x480e06
mov word [ebp - 0x24], 8
lea eax, [ebp - 4]
call fcn.00479e04
inc dword [ebp - 0x18]
xor ecx, ecx
mov word [ebp - 0x24], 0x14
lea edx, [ebp - 0x83c]
lea eax, [ebp - 0x43c]
mov byte [eax], 0
mov byte [edx], 0
inc ecx
inc edx
inc eax
cmp ecx, 0xa
jl 0x480b6b
mov eax, dword [ebp + 8]
add eax, 0x1484
call fcn.0047d3ec
mov edi, eax
xor eax, eax
or ecx, 0xffffffff
lea edx, [ebp - 0x43c]
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
mov esi, edx
xchg edi, esi
mov edx, ecx
mov eax, edi
shr ecx, 2
lea eax, [ebp - 0x43c]
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
and ecx, 3
rep movsb byte es:[edi], byte [esi]
push eax
call fcn.004da15c
pop ecx
mov edi, eax
mov dword [ebp - 0x38], 0xffffff9c
xor ecx, ecx
lea eax, [ebp - 0x43c]
cmp edi, ecx
jle 0x480be0
mov dl, byte [eax]
inc eax
and edx, 0xff
inc ecx
add dword [ebp - 0x38], edx
cmp edi, ecx
jg 0x480bcf
mov eax, dword [ebp - 0x38]
xor ecx, ecx
mov dword [ebp - 0x844], eax
mov dword [ebp - 0x840], ecx
fild qword [ebp - 0x844]
fld xword [0x40ac18]
fmulp st(1)
fadd dword [0x40ac24]
call fcn.004de554
mov dword [ebp - 0x38], eax
xor ecx, ecx
mov edx, dword [ebp - 0x38]
mov dword [ebp - 0x844], edx
mov dword [ebp - 0x840], ecx
fild qword [ebp - 0x844]
fmul qword [0x40ac28]
call fcn.004de554
mov dword [ebp - 0x38], eax
mov eax, dword [ebp + 8]
add eax, 0x1488
call fcn.0047d3ec
mov edi, eax
xor eax, eax
or ecx, 0xffffffff
lea edx, [ebp - 0x43c]
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
mov esi, edx
xchg edi, esi
mov edx, ecx
mov eax, edi
shr ecx, 2
lea eax, [ebp - 0x43c]
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
and ecx, 3
rep movsb byte es:[edi], byte [esi]
push eax
call fcn.004da15c
pop ecx
mov edi, eax
xor ecx, ecx
lea esi, [ebp - 0x43c]
cmp edi, ecx
jle 0x480cb0
mov eax, ecx
mov ebx, 3
cdq
idiv ebx
mov dl, byte [esi]
add dl, 0xec
mov ebx, ecx
and ebx, 0x80000001
jns 0x480c9f
dec ebx
or ebx, 0xfffffffe
inc ebx
add ebx, ebx
inc ecx
lea ebx, [ebx + ebx*4]
sub dl, bl
add al, dl
mov byte [esi], al
inc esi
cmp edi, ecx
jg 0x480c81
lea eax, [ebp - 0x43c]
lea esi, [ebp - 0x83c]
mov edi, eax
xor eax, eax
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
mov edx, ecx
xchg edi, esi
shr ecx, 2
mov eax, edi
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
lea edx, [ebp - 0x83c]
and ecx, 3
lea eax, [ebp - 8]
rep movsb byte es:[edi], byte [esi]
mov word [ebp - 0x24], 0x20
call fcn.004e5404
mov edx, eax
inc dword [ebp - 0x18]
lea eax, [ebp - 4]
call fcn.004e54ec
dec dword [ebp - 0x18]
lea eax, [ebp - 8]
mov edx, 2
call fcn.004e54bc
mov word [ebp - 0x24], 0x2c
lea eax, [ebp - 4]
call fcn.004e56bc
mov ecx, 0x7c
cdq
idiv ecx
add eax, 0x64
mov dword [ebp - 0x3c], eax
mov word [ebp - 0x24], 0x14
jmp 0x480d3b
mov eax, dword [ebp - 0x3c]
sub eax, dword [ebp - 0x38]
cmp eax, 0x64
je 0x480dd8
mov edx, dword [ebp + 8]
lea eax, [ebp - 0xc]
mov byte [edx + 0x1494], 0
mov word [ebp - 0x24], 0x38
mov edx, 0x484b54
call fcn.004e5404
inc dword [ebp - 0x18]
lea edx, [ebp - 0xc]
mov eax, dword [ebp + 8]
add eax, 0x1484
call fcn.004e54ec
dec dword [ebp - 0x18]
lea eax, [ebp - 0xc]
mov edx, 2
call fcn.004e54bc
mov word [ebp - 0x24], 0x44
mov edx, 0x484b55
lea eax, [ebp - 0x10]
call fcn.004e5404
inc dword [ebp - 0x18]
lea edx, [ebp - 0x10]
mov eax, dword [ebp + 8]
add eax, 0x1488
call fcn.004e54ec
dec dword [ebp - 0x18]
lea eax, [ebp - 0x10]
mov edx, 2
call fcn.004e54bc
mov ecx, dword [ebp + 8]
xor eax, eax
mov dword [ecx + 0x148c], eax
mov edx, dword [ebp + 8]
xor ecx, ecx
mov dword [edx + 0x1490], ecx
jmp 0x480df0
mov eax, dword [ebp + 8]
mov edx, dword [ebp - 0x3c]
mov dword [eax + 0x148c], edx
mov ecx, dword [ebp + 8]
mov eax, dword [ebp - 0x38]
mov dword [ecx + 0x1490], eax
dec dword [ebp - 0x18]
lea eax, [ebp - 4]
mov edx, 2
call fcn.004e54bc
mov word [ebp - 0x24], 0
mov ecx, dword [ebp - 0x34]
mov dword fs:[0], ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret