Function at 0x4067a0
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
push ebx
push edi
push esi
sub esp, 0x18
mov edi, dword [ecx]
xor eax, eax
cmp byte [edi], 0x22
jne 0x406a4b
mov esi, edi
jmp 0x4067cf
lea esi, [ebx + 2]
mov dword [ecx], esi
cmp byte [ebx + 2], 0
je 0x406a4b
mov ebx, esi
inc esi
mov dword [ecx], esi
movzx ebp, byte [ebx + 1]
cmp ebp, 0x5c
je 0x4067c0
test ebp, ebp
je 0x406a4b
cmp ebp, 0x22
jne 0x4067cf
mov dword [esp + 8], edx
add ebx, 2
mov dword [ecx], ebx
sub ebx, edi
mov ebp, ebx
not ebp
and ebp, 2
and ebx, 0xfffffffd
mov eax, ebx
sub eax, ebp
mov dword [esp + 0xc], eax
inc eax
push eax
call dword [0x44a008]
add esp, 4
mov edx, eax
test eax, eax
je case.0x406857.35
mov esi, edx
cmp ebx, ebp
je 0x4069ff
movzx eax, byte [edi + 1]
mov esi, edx
test al, al
je 0x4069ff
inc edi
mov esi, edx
mov ebp, edi
mov dword [esp], edx
nop
nop
nop
nop
cmp al, 0x5c
jne 0x406870
movzx eax, byte [ebp + 1]
add eax, 0xffffffde
cmp eax, 0x53
ja case.0x406857.35
lea ebx, [ebp + 1]
jmp dword [eax*4 + 0x44798c]
mov byte [esi], 0x22
jmp 0x40687c
cmp al, 0x20
jb case.0x406857.35
mov byte [esi], al
mov ebx, ebp
inc esi
movzx eax, byte [ebx + 1]
test al, al
je 0x4069ff
inc ebx
mov ecx, ebx
sub ecx, edi
mov ebp, ebx
cmp ecx, dword [esp + 0xc]
jb 0x406840
jmp 0x4069ff
mov byte [esi], 0xa
jmp 0x40687c
mov byte [esi], 0x2f
jmp 0x40687c
mov byte [esi], 8
jmp 0x40687c
lea ecx, [ebp + 2]
lea edx, [esp + 0x14]
call fcn.00406a60
test eax, eax
jne 0x406a3c
mov ecx, dword [esp + 0x14]
cmp ecx, 0x7f
ja 0x4068ec
mov byte [esi], cl
mov eax, 1
add ebx, eax
add ebx, 3
mov edx, dword [esp]
jmp 0x40687c
mov byte [esi], 0x5c
jmp 0x40687c
mov byte [esi], 0xd
jmp 0x40687c
mov byte [esi], 0xc
jmp 0x40687c
mov byte [esi], 9
jmp 0x40687c
cmp ecx, 0x7ff
mov edx, dword [esp]
ja 0x40690c
mov eax, ecx
shr eax, 6
or al, 0xc0
mov byte [esi], al
and cl, 0x3f
or cl, 0x80
mov byte [esi + 1], cl
inc esi
jmp 0x40693c
lea eax, [ecx - 0xe000]
cmp eax, 0xfffff7ff
ja 0x40694b
mov eax, ecx
shr eax, 0xc
and al, 0xf
or al, 0xe0
mov byte [esi], al
mov eax, ecx
shr eax, 6
and al, 0x3f
or al, 0x80
mov byte [esi + 1], al
and cl, 0x3f
or cl, 0x80
mov byte [esi + 2], cl
add esi, 2
mov eax, 1
add ebx, eax
add ebx, 3
jmp 0x40687c
cmp ecx, 0xdbff
ja 0x406a3c
cmp byte [ebp + 6], 0x5c
jne 0x406a3c
cmp byte [ebp + 7], 0x75
jne 0x406a3c
add ebp, 8
mov dword [esp + 4], ecx
mov ecx, ebp
lea edx, [esp + 0x10]
call fcn.00406a60
mov ecx, dword [esp + 4]
test eax, eax
jne 0x406a3c
mov eax, dword [esp + 0x10]
cmp eax, 0xdc00
jb 0x406a3c
cmp eax, 0xdfff
ja 0x406a3c
mov edx, ecx
shl edx, 0xa
and edx, 0xffc00
mov ebp, eax
and eax, 0x3ff
or eax, edx
and ecx, 0x40
shl ecx, 0xb
mov edx, ecx
mov ecx, eax
xor ecx, 0x10000
add ecx, edx
mov edx, ecx
shr edx, 0x12
or dl, 0xf0
mov byte [esi], dl
shr ecx, 0xc
and cl, 0x3f
or cl, 0x80
mov byte [esi + 1], cl
shr eax, 6
and al, 0x3f
or al, 0x80
mov byte [esi + 2], al
mov eax, ebp
and al, 0x3f
or al, 0x80
mov byte [esi + 3], al
add esi, 3
mov eax, 7
jmp 0x4068ce
mov byte [esi], 0
sub esi, edx
lea edi, [esi + 1]
push edi
mov ebx, edx
call dword [0x44a008]
mov edx, ebx
add esp, 4
test eax, eax
je case.0x406857.35
push edi
push edx
push eax
mov edi, eax
mov ebx, edx
call fcn.0040cc90
add esp, 0xc
mov eax, dword [esp + 8]
mov dword [eax], esi
push ebx
call dword [0x44a004]
add esp, 4
mov eax, edi
jmp 0x406a4b
mov edx, dword [esp]
push edx
call dword [0x44a004]
add esp, 4
xor eax, eax
add esp, 0x18
pop esi
pop edi
pop ebx
pop ebp
ret