Function at 0x4d7764
Capabilities:
Encrypt data using rc4 ksa

Disassembly:
push ebp
mov ebp, esp
add esp, 0xffffffb8
push ebx
mov dword [ebp - 0xc], ecx
mov dword [ebp - 8], edx
mov dword [ebp - 4], eax
cmp dword [ebp - 8], 0
je 0x4d77a6
mov eax, dword [ebp - 8]
cmp byte [eax], 0
jne 0x4d77a6
mov eax, dword [ebp - 8]
cmp dword [eax + 1], 0x80
je 0x4d77b2
mov eax, dword [ebp - 8]
cmp dword [eax + 1], 0xc0
je 0x4d77b2
mov eax, dword [ebp - 8]
cmp dword [eax + 1], 0x100
je 0x4d77b2
mov dword [ebp - 0x10], 0xfffffffe
jmp 0x4d7a8b
cmp dword [ebp - 4], 0
je 0x4d77f4
mov eax, dword [ebp - 4]
cmp byte [eax], 1
je 0x4d77d0
mov eax, dword [ebp - 4]
cmp byte [eax], 2
je 0x4d77d0
mov eax, dword [ebp - 4]
cmp byte [eax], 3
jne 0x4d77f4
mov eax, dword [ebp - 4]
cmp dword [eax + 0x11], 0x80
je 0x4d7800
mov eax, dword [ebp - 4]
cmp dword [eax + 0x11], 0xc0
je 0x4d7800
mov eax, dword [ebp - 4]
cmp dword [eax + 0x11], 0x100
je 0x4d7800
mov dword [ebp - 0x10], 0xfffffffb
jmp 0x4d7a8b
mov eax, dword [ebp - 4]
push dword [eax + 0x11]
mov eax, dword [ebp + 0xc]
pop edx
mov ecx, edx
cdq
idiv ecx
mov dword [ebp - 0x20], eax
mov eax, dword [ebp - 4]
mov al, byte [eax]
dec al
je 0x4d7828
dec al
je 0x4d7911
jmp 0x4d7a76
mov eax, dword [ebp - 0x20]
dec eax
test eax, eax
jl 0x4d7a7f
inc eax
mov dword [ebp - 0x24], eax
mov dword [ebp - 0x14], 0
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x11]
test eax, eax
jns 0x4d784c
add eax, 0x1f
sar eax, 5
dec eax
test eax, eax
jl 0x4d7893
inc eax
mov dword [ebp - 0x28], eax
mov dword [ebp - 0x18], 0
xor eax, eax
mov dword [ebp - 0x1c], eax
mov eax, dword [ebp - 0x18]
shl eax, 2
add eax, dword [ebp - 0x1c]
mov edx, dword [ebp - 0xc]
mov al, byte [edx + eax]
and al, 0xff
mov edx, dword [ebp - 0x1c]
lea edx, [ebp + edx*8 - 0x48]
mov ecx, dword [ebp - 0x18]
mov byte [edx + ecx], al
inc dword [ebp - 0x1c]
cmp dword [ebp - 0x1c], 4
jne 0x4d7864
inc dword [ebp - 0x18]
dec dword [ebp - 0x28]
jne 0x4d785f
mov eax, dword [ebp - 8]
add eax, 0x4a
push eax
mov eax, dword [ebp - 4]
mov ecx, dword [eax + 0x11]
mov eax, dword [ebp - 8]
mov edx, dword [eax + 1]
lea eax, [ebp - 0x48]
call fcn.004d6ef4
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x11]
test eax, eax
jns 0x4d78bb
add eax, 0x1f
sar eax, 5
dec eax
test eax, eax
jl 0x4d7900
inc eax
mov dword [ebp - 0x28], eax
mov dword [ebp - 0x18], 0
xor eax, eax
mov dword [ebp - 0x1c], eax
mov eax, dword [ebp - 0x18]
shl eax, 2
add eax, dword [ebp - 0x1c]
mov edx, dword [ebp + 8]
mov ecx, dword [ebp - 0x1c]
lea ecx, [ebp + ecx*8 - 0x48]
mov ebx, dword [ebp - 0x18]
mov cl, byte [ecx + ebx]
mov byte [edx + eax], cl
inc dword [ebp - 0x1c]
cmp dword [ebp - 0x1c], 4
jne 0x4d78d3
inc dword [ebp - 0x18]
dec dword [ebp - 0x28]
jne 0x4d78ce
inc dword [ebp - 0x14]
dec dword [ebp - 0x24]
jne 0x4d783f
jmp 0x4d7a7f
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x11]
test eax, eax
jns 0x4d791e
add eax, 0x1f
sar eax, 5
dec eax
test eax, eax
jl 0x4d7966
inc eax
mov dword [ebp - 0x24], eax
mov dword [ebp - 0x18], 0
xor eax, eax
mov dword [ebp - 0x1c], eax
mov eax, dword [ebp - 0x18]
shl eax, 2
add eax, dword [ebp - 0x1c]
mov edx, dword [ebp - 4]
mov al, byte [edx + eax + 1]
and al, 0xff
mov edx, dword [ebp - 0x1c]
lea edx, [ebp + edx*8 - 0x48]
mov ecx, dword [ebp - 0x18]
mov byte [edx + ecx], al
inc dword [ebp - 0x1c]
cmp dword [ebp - 0x1c], 4
jne 0x4d7936
inc dword [ebp - 0x18]
dec dword [ebp - 0x24]
jne 0x4d7931
mov eax, dword [ebp - 0x20]
dec eax
test eax, eax
jl 0x4d7a7f
inc eax
mov dword [ebp - 0x24], eax
mov dword [ebp - 0x14], 0
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x11]
test eax, eax
jns 0x4d798a
add eax, 0x1f
sar eax, 5
dec eax
test eax, eax
jl 0x4d79e6
inc eax
mov dword [ebp - 0x28], eax
mov dword [ebp - 0x18], 0
xor eax, eax
mov dword [ebp - 0x1c], eax
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x11]
test eax, eax
jns 0x4d79af
add eax, 7
sar eax, 3
imul dword [ebp - 0x14]
mov edx, dword [ebp - 0x18]
shl edx, 2
add eax, edx
add eax, dword [ebp - 0x1c]
mov edx, dword [ebp - 0xc]
mov al, byte [edx + eax]
and al, 0xff
mov edx, dword [ebp - 0x1c]
lea edx, [ebp + edx*8 - 0x48]
mov ecx, dword [ebp - 0x18]
xor byte [edx + ecx], al
inc dword [ebp - 0x1c]
cmp dword [ebp - 0x1c], 4
jne 0x4d79a2
inc dword [ebp - 0x18]
dec dword [ebp - 0x28]
jne 0x4d799d
mov eax, dword [ebp - 8]
add eax, 0x4a
push eax
mov eax, dword [ebp - 4]
mov ecx, dword [eax + 0x11]
mov eax, dword [ebp - 8]
mov edx, dword [eax + 1]
lea eax, [ebp - 0x48]
call fcn.004d6ef4
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x11]
test eax, eax
jns 0x4d7a0e
add eax, 0x1f
sar eax, 5
dec eax
test eax, eax
jl 0x4d7a68
inc eax
mov dword [ebp - 0x28], eax
mov dword [ebp - 0x18], 0
xor eax, eax
mov dword [ebp - 0x1c], eax
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x11]
test eax, eax
jns 0x4d7a33
add eax, 7
sar eax, 3
imul dword [ebp - 0x14]
mov edx, dword [ebp - 0x18]
shl edx, 2
add eax, edx
add eax, dword [ebp - 0x1c]
mov edx, dword [ebp + 8]
mov ecx, dword [ebp - 0x1c]
lea ecx, [ebp + ecx*8 - 0x48]
mov ebx, dword [ebp - 0x18]
mov cl, byte [ecx + ebx]
mov byte [edx + eax], cl
inc dword [ebp - 0x1c]
cmp dword [ebp - 0x1c], 4
jne 0x4d7a26
inc dword [ebp - 0x18]
dec dword [ebp - 0x28]
jne 0x4d7a21
inc dword [ebp - 0x14]
dec dword [ebp - 0x24]
jne 0x4d797d
jmp 0x4d7a7f
mov dword [ebp - 0x10], 0xfffffffb
jmp 0x4d7a8b
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x11]
imul dword [ebp - 0x20]
mov dword [ebp - 0x10], eax
mov eax, dword [ebp - 0x10]
pop ebx
mov esp, ebp
pop ebp
ret 8