Function at 0x406840
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 0x406ae3
mov esi, ebp
jmp 0x40686f
lea esi, [ebx + 2]
mov dword [ecx], esi
cmp byte [ebx + 2], 0
je 0x406ae3
mov ebx, esi
inc esi
mov dword [ecx], esi
movzx edi, byte [ebx + 1]
cmp edi, 0x5c
je 0x406860
test edi, edi
je 0x406ae3
cmp edi, 0x22
jne 0x40686f
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 [0x445004]
add esp, 4
mov dword [esp], eax
test eax, eax
je case.0x4068f7.35
mov esi, dword [esp]
add ebx, 0xfffffffe
je 0x406a99
movzx eax, byte [edi + 1]
mov esi, dword [esp]
test al, al
je 0x406a99
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 0x406910
movzx eax, byte [ebp + 1]
add eax, 0xffffffde
cmp eax, 0x53
ja case.0x4068f7.35
lea edi, [ebp + 1]
jmp dword [eax*4 + 0x44298c]
mov byte [esi], 0x22
jmp 0x40691c
cmp al, 0x20
jb case.0x4068f7.35
mov byte [esi], al
mov edi, ebp
inc esi
movzx eax, byte [edi + 1]
test al, al
mov edx, dword [esp + 8]
je 0x406a99
inc edi
mov ecx, edi
sub ecx, edx
mov ebp, edi
cmp ecx, ebx
jb 0x4068e0
jmp 0x406a99
mov byte [esi], 0xa
jmp 0x40691c
mov byte [esi], 0x2f
jmp 0x40691c
mov byte [esi], 8
jmp 0x40691c
lea ecx, [ebp + 2]
lea edx, [esp + 0x10]
call fcn.00406af0
test eax, eax
jne case.0x4068f7.35
mov edx, dword [esp + 0x10]
cmp edx, 0x7f
ja 0x406981
mov byte [esi], dl
jmp 0x4069dd
mov byte [esi], 0x5c
jmp 0x40691c
mov byte [esi], 0xd
jmp 0x40691c
mov byte [esi], 0xc
jmp 0x40691c
mov byte [esi], 9
jmp 0x40691c
cmp edx, 0x7ff
ja 0x4069a5
mov eax, edx
shr eax, 6
or al, 0xc0
mov byte [esi], al
mov eax, edx
not eax
or eax, 0x3f
add eax, edx
inc al
or al, 0x80
mov byte [esi + 1], al
inc esi
jmp 0x4069dd
lea eax, [edx - 0xe000]
cmp eax, 0xfffff7ff
ja 0x4069ec
mov eax, edx
shr eax, 0xc
and al, 0xf
or al, 0xe0
mov byte [esi], al
mov eax, edx
shr eax, 6
mov ecx, eax
xor ecx, 0x40
or eax, 0x3f
and eax, ecx
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 0x40691c
cmp edx, 0xdbff
ja case.0x4068f7.35
cmp byte [ebp + 6], 0x5c
jne case.0x4068f7.35
cmp byte [ebp + 7], 0x75
jne case.0x4068f7.35
add ebp, 8
mov ecx, ebp
mov ebp, edx
lea edx, [esp + 0xc]
call fcn.00406af0
test eax, eax
jne case.0x4068f7.35
mov edx, dword [esp + 0xc]
cmp edx, 0xdc00
jb case.0x4068f7.35
cmp edx, 0xdfff
ja case.0x4068f7.35
mov ecx, ebp
shl ecx, 0xa
and ecx, 0xffc00
mov eax, ecx
mov ebp, edx
and edx, 0x3ff
add ecx, edx
add eax, edx
add eax, 0x10000
mov edx, eax
shr edx, 0x12
or dl, 0xf0
mov byte [esi], dl
shr eax, 0xc
and al, 0x3f
or al, 0x80
mov byte [esi + 1], al
shr ecx, 6
and cl, 0x3f
or cl, 0x80
mov byte [esi + 2], cl
mov eax, ebp
and al, 0x3f
or al, 0x80
mov byte [esi + 3], al
add esi, 3
mov eax, 7
add edi, eax
add edi, 3
jmp 0x40691c
mov byte [esi], 0
sub esi, dword [esp]
lea edi, [esi + 1]
push edi
call dword [0x445004]
add esp, 4
test eax, eax
je case.0x4068f7.35
push edi
mov ebx, dword [esp + 4]
push ebx
push eax
mov edi, eax
call fcn.0040cf90
add esp, 0xc
mov eax, dword [esp + 4]
mov dword [eax], esi
push ebx
call dword [section..data]
add esp, 4
mov eax, edi
jmp 0x406ae3
push dword [esp]
call dword [section..data]
add esp, 4
xor eax, eax
add esp, 0x14
pop esi
pop edi
pop ebx
pop ebp
ret