Function at 0x406500
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
push ebx
push edi
push esi
sub esp, 0x14
mov ebp, dword [ecx]
xor eax, eax
cmp byte [ebp], 0x22
jne 0x4067a3
mov esi, ebp
jmp 0x40652f
lea esi, [ebx + 2]
mov dword [ecx], esi
cmp byte [ebx + 2], 0
je 0x4067a3
mov ebx, esi
inc esi
mov dword [ecx], esi
movzx edi, byte [ebx + 1]
cmp edi, 0x5c
je 0x406520
test edi, edi
je 0x4067a3
cmp edi, 0x22
jne 0x40652f
mov dword [esp + 4], edx
add ebx, 2
mov dword [ecx], ebx
mov edi, ebp
sub ebx, ebp
lea eax, [ebx - 1]
push eax
call dword [0x44a008]
add esp, 4
mov dword [esp], eax
test eax, eax
je case.0x4065b7.35
mov esi, dword [esp]
add ebx, 0xfffffffe
je 0x40674f
movzx eax, byte [edi + 1]
mov esi, dword [esp]
test al, al
je 0x40674f
mov ebp, edi
inc ebp
mov esi, dword [esp]
mov dword [esp + 8], ebp
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
cmp al, 0x5c
jne 0x4065d0
movzx eax, byte [ebp + 1]
add eax, 0xffffffde
cmp eax, 0x53
ja case.0x4065b7.35
lea edi, [ebp + 1]
jmp dword [eax*4 + 0x44798c]
mov byte [esi], 0x22
jmp 0x4065dc
cmp al, 0x20
jb case.0x4065b7.35
mov byte [esi], al
mov edi, ebp
inc esi
movzx eax, byte [edi + 1]
test al, al
mov edx, dword [esp + 8]
je 0x40674f
inc edi
mov ecx, edi
sub ecx, edx
mov ebp, edi
cmp ecx, ebx
jb 0x4065a0
jmp 0x40674f
mov byte [esi], 0xa
jmp 0x4065dc
mov byte [esi], 0x2f
jmp 0x4065dc
mov byte [esi], 8
jmp 0x4065dc
lea ecx, [ebp + 2]
lea edx, [esp + 0x10]
call fcn.004067b0
test eax, eax
jne case.0x4065b7.35
mov edx, dword [esp + 0x10]
cmp edx, 0x7f
ja 0x406641
mov byte [esi], dl
jmp 0x40668e
mov byte [esi], 0x5c
jmp 0x4065dc
mov byte [esi], 0xd
jmp 0x4065dc
mov byte [esi], 0xc
jmp 0x4065dc
mov byte [esi], 9
jmp 0x4065dc
cmp edx, 0x7ff
ja 0x40665e
mov eax, edx
shr eax, 6
or al, 0xc0
mov byte [esi], al
and dl, 0x3f
or dl, 0x80
mov byte [esi + 1], dl
inc esi
jmp 0x40668e
lea eax, [edx - 0xe000]
cmp eax, 0xfffff7ff
ja 0x40669d
mov eax, edx
shr eax, 0xc
and al, 0xf
or al, 0xe0
mov byte [esi], al
mov eax, edx
shr eax, 6
and al, 0x3f
or al, 0x80
mov byte [esi + 1], al
and dl, 0x3f
or dl, 0x80
mov byte [esi + 2], dl
add esi, 2
mov eax, 1
add edi, eax
add edi, 3
jmp 0x4065dc
cmp edx, 0xdbff
ja case.0x4065b7.35
cmp byte [ebp + 6], 0x5c
jne case.0x4065b7.35
cmp byte [ebp + 7], 0x75
jne case.0x4065b7.35
add ebp, 8
mov ecx, ebp
mov ebp, edx
lea edx, [esp + 0xc]
call fcn.004067b0
test eax, eax
jne case.0x4065b7.35
mov eax, dword [esp + 0xc]
cmp eax, 0xdc00
jb case.0x4065b7.35
cmp eax, 0xdfff
ja case.0x4065b7.35
mov edx, ebp
shl edx, 0xa
and edx, 0xffc00
mov ecx, eax
and ecx, 0x3ff
add ecx, edx
add ecx, 0x10000
mov edx, ecx
shr edx, 0x12
or dl, 0xf0
mov byte [esi], dl
mov edx, ecx
shr edx, 0xc
and dl, 0x3f
or dl, 0x80
mov byte [esi + 1], dl
shr ecx, 6
mov edx, ecx
not edx
or edx, 0x3f
add edx, ecx
inc dl
or dl, 0x80
mov byte [esi + 2], dl
and al, 0x3f
or al, 0x80
mov byte [esi + 3], al
add esi, 3
mov eax, 7
add edi, eax
add edi, 3
jmp 0x4065dc
mov byte [esi], 0
sub esi, dword [esp]
mov eax, esi
and eax, 1
mov ecx, esi
xor ecx, 1
lea edi, [ecx + eax*2]
push edi
call dword [0x44a008]
add esp, 4
test eax, eax
je case.0x4065b7.35
push edi
mov ebx, dword [esp + 4]
push ebx
push eax
mov edi, eax
call fcn.0040ca30
add esp, 0xc
mov eax, dword [esp + 4]
mov dword [eax], esi
push ebx
call dword [0x44a004]
add esp, 4
mov eax, edi
jmp 0x4067a3
push dword [esp]
call dword [0x44a004]
add esp, 4
xor eax, eax
add esp, 0x14
pop esi
pop edi
pop ebx
pop ebp
ret