Function at 0x49d880
Capabilities:
Encrypt data using rc4 prga

Disassembly:
mov ecx, dword fs:[0x14]
mov ecx, dword [ecx]
cmp esp, dword [ecx + 8]
jbe 0x49db44
sub esp, 0x30
mov eax, dword [esp + 0x34]
mov ecx, dword [esp + 0x38]
xor edx, edx
xor ebx, ebx
xor ebp, ebp
xor esi, esi
xor edi, edi
jmp 0x49d8e0
dec ebp
mov dword [esp + 0x28], ebp
xchg ebp, ebx
neg ebx
xchg ebp, ebx
sar ebp, 0x1f
and ebp, 1
add ebp, esi
mov esi, dword [esp + 0x28]
mov esi, ecx
mov ecx, dword [esp + 0x28]
mov ecx, eax
mov eax, ebp
mov ebp, ecx
mov ecx, dword [esp + 0x28]
mov ecx, edx
mov edx, edi
mov edi, ebx
mov ebx, ecx
mov ecx, dword [esp + 0x28]
test ecx, ecx
je 0x49db04
mov dword [esp + 0x28], ecx
mov dword [esp + 0x2c], eax
xchg edi, eax
mov byte [esp + 0x22], al
xchg edi, eax
movzx eax, byte [eax]
mov byte [esp + 0x23], al
cmp al, 0x20
jbe 0x49da2a
cmp al, 0x22
je 0x49d92c
cmp al, 0x5c
jne 0x49da3a
inc edx
mov eax, ebp
mov edi, edx
mov ecx, esi
mov ebp, dword [esp + 0x28]
mov esi, dword [esp + 0x2c]
mov edx, ebx
movzx ebx, byte [esp + 0x22]
jmp 0x49d8ad
mov dword [esp + 0x24], edx
mov dword [esp], esi
mov dword [esp + 4], ebx
mov dword [esp + 8], ebp
mov eax, edx
shr edx, 0x1f
lea ecx, [edx + eax]
sar ecx, 1
mov dword [esp + 0xc], ecx
call fcn.0049d7f0
mov eax, dword [esp + 0x18]
mov ecx, dword [esp + 0x10]
mov edx, dword [esp + 0x14]
mov ebx, dword [esp + 0x24]
test ebx, 1
jne 0x49d9de
movzx ebx, byte [esp + 0x22]
test bl, bl
je 0x49d9d1
mov ebp, dword [esp + 0x28]
cmp ebp, 1
jle 0x49d9cb
mov esi, dword [esp + 0x2c]
cmp byte [esi + 1], 0x22
jne 0x49d9d9
inc edx
cmp eax, edx
jae 0x49d9c2
mov dword [esp], ecx
mov dword [esp + 4], edx
mov dword [esp + 8], eax
mov dword [esp + 0xc], 1
lea eax, [0x4ec960]
mov dword [esp + 0x10], eax
call fcn.0044cd30
mov ecx, dword [esp + 0x14]
mov edx, dword [esp + 0x18]
mov eax, dword [esp + 0x1c]
movzx ebx, byte [esp + 0x22]
mov ebp, dword [esp + 0x28]
mov esi, dword [esp + 0x2c]
mov byte [edx + ecx - 1], 0x22
dec ebp
inc esi
jmp 0x49d9d9
mov esi, dword [esp + 0x2c]
jmp 0x49d9d9
mov ebp, dword [esp + 0x28]
mov esi, dword [esp + 0x2c]
xor ebx, 1
jmp 0x49da23
inc edx
cmp eax, edx
jae 0x49da11
mov dword [esp], ecx
mov dword [esp + 4], edx
mov dword [esp + 8], eax
mov dword [esp + 0xc], 1
lea eax, [0x4ec960]
mov dword [esp + 0x10], eax
call fcn.0044cd30
mov ecx, dword [esp + 0x14]
mov edx, dword [esp + 0x18]
mov eax, dword [esp + 0x1c]
mov byte [edx + ecx - 1], 0x22
mov ebp, dword [esp + 0x28]
mov esi, dword [esp + 0x2c]
movzx ebx, byte [esp + 0x22]
xor edi, edi
jmp 0x49d8ad
cmp al, 9
je 0x49da34
cmp al, 0x20
jne 0x49da3a
xchg edi, eax
test al, al
xchg edi, eax
je 0x49dab7
mov dword [esp], esi
mov dword [esp + 4], ebx
mov dword [esp + 8], ebp
mov dword [esp + 0xc], edx
call fcn.0049d7f0
mov eax, dword [esp + 0x18]
mov ecx, dword [esp + 0x14]
inc ecx
mov edx, dword [esp + 0x10]
cmp eax, ecx
jae 0x49da8d
mov dword [esp], edx
mov dword [esp + 4], ecx
mov dword [esp + 8], eax
mov dword [esp + 0xc], 1
lea eax, [0x4ec960]
mov dword [esp + 0x10], eax
call fcn.0044cd30
mov edx, dword [esp + 0x14]
mov ecx, dword [esp + 0x18]
mov eax, dword [esp + 0x1c]
movzx edi, byte [esp + 0x23]
xchg edi, eax
mov byte [ecx + edx - 1], al
xchg edi, eax
mov ebp, dword [esp + 0x28]
mov esi, dword [esp + 0x2c]
xor edi, edi
movzx ebx, byte [esp + 0x22]
mov ebx, edx
mov edx, ecx
mov ecx, ebx
movzx ebx, byte [esp + 0x22]
jmp 0x49d8ad
mov dword [esp], esi
mov dword [esp + 4], ebx
mov dword [esp + 8], ebp
mov dword [esp + 0xc], edx
call fcn.0049d7f0
mov eax, dword [esp + 0x10]
mov ecx, dword [esp + 0x14]
mov edx, dword [esp + 0x18]
mov dword [esp + 0x3c], eax
mov dword [esp + 0x40], ecx
mov dword [esp + 0x44], edx
mov eax, dword [esp + 0x28]
dec eax
mov ecx, eax
neg eax
sar eax, 0x1f
and eax, 1
mov edx, dword [esp + 0x2c]
add eax, edx
mov dword [esp + 0x48], eax
mov dword [esp + 0x4c], ecx
add esp, 0x30
ret
mov dword [esp], esi
mov dword [esp + 4], ebx
mov dword [esp + 8], ebp
mov dword [esp + 0xc], edx
call fcn.0049d7f0
mov eax, dword [esp + 0x10]
mov ecx, dword [esp + 0x14]
mov edx, dword [esp + 0x18]
mov dword [esp + 0x3c], eax
mov dword [esp + 0x40], ecx
mov dword [esp + 0x44], edx
mov dword [esp + 0x48], 0
mov dword [esp + 0x4c], 0
add esp, 0x30
ret
call fcn.00463e70
jmp fcn.0049d880