Function at 0x4177f0
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
mov ebp, esp
add esp, 0xffffffe4
push ebx
push esi
push edi
mov dword [ebp - 4], ecx
mov ebx, eax
xor eax, eax
mov dword [ebp - 0x18], eax
mov dword [ebp - 0x14], eax
mov eax, dword [ebx + 0x14]
movzx edx, byte [eax + 0x471]
movzx ecx, dl
cmp ecx, 6
ja case.0x41788a.0
jmp dword [ecx*4 + 0x417823]
movzx edx, byte [eax + 0x470]
sub dl, 8
je 0x417855
sub dl, 8
je 0x417864
jmp case.0x41788a.0
mov dword [ebp - 0x14], ebx
mov dword [ebp - 0x18], 0x4174c0
jmp case.0x41788a.0
mov dword [ebp - 0x14], ebx
mov dword [ebp - 0x18], 0x417514
jmp case.0x41788a.0
movzx ecx, byte [eax + 0x470]
cmp ecx, 0x10
ja case.0x41788a.0
movzx ecx, byte [ecx + 0x417891]
jmp dword [ecx*4 + 0x4178a2]
mov dword [ebp - 0x14], ebx
mov dword [ebp - 0x18], 0x4175b4
jmp case.0x41788a.0
cmp dl, 3
jne 0x4178cf
mov dword [ebp - 0x14], ebx
mov dword [ebp - 0x18], 0x417608
jmp case.0x41788a.0
mov dword [ebp - 0x14], ebx
mov dword [ebp - 0x18], 0x4175c4
jmp case.0x41788a.0
mov dword [ebp - 0x14], ebx
mov dword [ebp - 0x18], 0x41764c
jmp case.0x41788a.0
movzx edx, byte [eax + 0x470]
sub dl, 8
je 0x4178fa
sub dl, 8
je 0x417906
jmp case.0x41788a.0
mov dword [ebp - 0x14], ebx
mov dword [ebp - 0x18], 0x417678
jmp case.0x41788a.0
mov dword [ebp - 0x14], ebx
mov dword [ebp - 0x18], 0x4176dc
jmp case.0x41788a.0
movzx edx, byte [eax + 0x470]
sub dl, 8
je 0x417925
sub dl, 8
je 0x417931
jmp case.0x41788a.0
mov dword [ebp - 0x14], ebx
mov dword [ebp - 0x18], 0x41778c
jmp case.0x41788a.0
mov dword [ebp - 0x14], ebx
mov dword [ebp - 0x18], 0x4177b4
mov edx, dword [eax + 0x458]
test edx, edx
je 0x41794a
mov dword [ebp - 0xc], edx
jmp 0x41794f
xor edx, edx
mov dword [ebp - 0xc], edx
mov edx, dword [eax + 0x45c]
mov dword [ebp - 8], edx
mov edx, dword [eax + 0x450]
test edx, edx
je 0x417966
mov esi, edx
jmp 0x417968
xor esi, esi
mov eax, dword [ebx + 0x1c]
dec eax
test eax, eax
jb 0x417a43
inc eax
mov dword [ebp - 0x1c], eax
mov eax, dword [ebx + 0x20]
inc eax
push eax
lea eax, [ebx + 0x4c]
push eax
mov eax, dword [ebp + 8]
push eax
movzx eax, byte [ebx + 0x48]
mov ecx, dword [ebx + eax*4 + 0x40]
mov edx, dword [ebp - 4]
mov eax, ebx
call fcn.0041683c
sub eax, 0xffffffff
je 0x4179a4
dec eax
jne 0x4179f3
jmp 0x417a43
mov eax, dword [ebx + 0x14]
mov edx, dword [eax + 0x47c]
imul edx, dword [ebx + 0x1c]
mov eax, dword [eax + 0x458]
call fcn.00402218
mov eax, dword [ebx + 0x14]
mov eax, dword [eax + 0x45c]
test eax, eax
je 0x4179d5
mov edx, dword [ebx + 0x18]
imul edx, dword [ebx + 0x1c]
call fcn.00402218
mov edx, dword [ebx + 0x14]
mov eax, dword [edx + 0x450]
test eax, eax
je 0x417a43
mov edx, dword [edx + 0x47c]
imul edx, dword [ebx + 0x1c]
call fcn.00402218
jmp 0x417a43
mov eax, ebx
call fcn.00417a4c
mov eax, dword [ebp - 8]
push eax
push esi
movzx eax, byte [ebx + 0x48]
mov eax, dword [ebx + eax*4 + 0x40]
lea edx, [eax + 1]
mov ecx, dword [ebp - 0xc]
mov eax, dword [ebp - 0x14]
call dword [ebp - 0x18]
movzx eax, byte [ebx + 0x48]
xor al, 1
mov byte [ebx + 0x48], al
mov eax, dword [ebx + 0x14]
mov eax, dword [eax + 0x47c]
add dword [ebp - 0xc], eax
test esi, esi
je 0x417a2e
add esi, eax
cmp dword [ebp - 8], 0
je 0x417a3a
mov eax, dword [ebx + 0x18]
add dword [ebp - 8], eax
dec dword [ebp - 0x1c]
jne 0x417978
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 8