Function at 0x5137c0
Capabilities:
Encode data using xor
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 - 4], 0
je 0x5137f2
cmp dword [ebp - 8], 0
je 0x5137f2
mov eax, dword [ebp - 8]
cmp byte [eax], 0
je 0x5137f2
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x11]
mov edx, dword [ebp - 8]
cmp eax, dword [edx + 0x46]
je 0x5137fe
mov dword [ebp - 0x10], 0xfffffffb
jmp 0x513bb3
cmp dword [ebp - 8], 0
je 0x513830
mov eax, dword [ebp - 8]
cmp byte [eax], 1
jne 0x513830
mov eax, dword [ebp - 8]
cmp dword [eax + 1], 0x80
je 0x51383c
mov eax, dword [ebp - 8]
cmp dword [eax + 1], 0xc0
je 0x51383c
mov eax, dword [ebp - 8]
cmp dword [eax + 1], 0x100
je 0x51383c
mov dword [ebp - 0x10], 0xfffffffe
jmp 0x513bb3
cmp dword [ebp - 4], 0
je 0x51387e
mov eax, dword [ebp - 4]
cmp byte [eax], 1
je 0x51385a
mov eax, dword [ebp - 4]
cmp byte [eax], 2
je 0x51385a
mov eax, dword [ebp - 4]
cmp byte [eax], 3
jne 0x51387e
mov eax, dword [ebp - 4]
cmp dword [eax + 0x11], 0x80
je 0x51388a
mov eax, dword [ebp - 4]
cmp dword [eax + 0x11], 0xc0
je 0x51388a
mov eax, dword [ebp - 4]
cmp dword [eax + 0x11], 0x100
je 0x51388a
mov dword [ebp - 0x10], 0xfffffffb
jmp 0x513bb3
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 0x5138b2
dec al
je 0x51399b
jmp 0x513b9e
mov eax, dword [ebp - 0x20]
dec eax
test eax, eax
jl 0x513ba7
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 0x5138d6
add eax, 0x1f
sar eax, 5
dec eax
test eax, eax
jl 0x51391d
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 0x5138ee
inc dword [ebp - 0x18]
dec dword [ebp - 0x28]
jne 0x5138e9
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.00512d80
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x11]
test eax, eax
jns 0x513945
add eax, 0x1f
sar eax, 5
dec eax
test eax, eax
jl 0x51398a
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 0x51395d
inc dword [ebp - 0x18]
dec dword [ebp - 0x28]
jne 0x513958
inc dword [ebp - 0x14]
dec dword [ebp - 0x24]
jne 0x5138c9
jmp 0x513ba7
mov eax, dword [ebp - 0x20]
dec eax
cmp eax, 1
jl 0x513acb
mov dword [ebp - 0x14], eax
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x11]
test eax, eax
jns 0x5139b8
add eax, 0x1f
sar eax, 5
dec eax
test eax, eax
jl 0x513a14
inc eax
mov dword [ebp - 0x24], 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 0x5139dd
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]
mov byte [edx + ecx], al
inc dword [ebp - 0x1c]
cmp dword [ebp - 0x1c], 4
jne 0x5139d0
inc dword [ebp - 0x18]
dec dword [ebp - 0x24]
jne 0x5139cb
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.00512d80
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x11]
test eax, eax
jns 0x513a3c
add eax, 0x1f
sar eax, 5
dec eax
test eax, eax
jl 0x513abe
inc eax
mov dword [ebp - 0x24], eax
mov dword [ebp - 0x18], 0
xor eax, eax
mov dword [ebp - 0x1c], eax
mov eax, dword [ebp - 0x14]
dec eax
mov edx, dword [ebp - 4]
mov edx, dword [edx + 0x11]
test edx, edx
jns 0x513a65
add edx, 7
sar edx, 3
imul edx
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]
mov edx, dword [ebp - 0x1c]
lea edx, [ebp + edx*8 - 0x48]
mov ecx, dword [ebp - 0x18]
xor al, byte [edx + ecx]
mov edx, dword [ebp - 4]
mov edx, dword [edx + 0x11]
test edx, edx
jns 0x513a95
add edx, 7
sar edx, 3
imul edx, dword [ebp - 0x14]
mov ecx, dword [ebp - 0x18]
shl ecx, 2
add edx, ecx
add edx, dword [ebp - 0x1c]
mov ecx, dword [ebp + 8]
mov byte [ecx + edx], al
inc dword [ebp - 0x1c]
cmp dword [ebp - 0x1c], 4
jne 0x513a54
inc dword [ebp - 0x18]
dec dword [ebp - 0x24]
jne 0x513a4f
dec dword [ebp - 0x14]
cmp dword [ebp - 0x14], 0
jne 0x5139ab
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x11]
test eax, eax
jns 0x513ad8
add eax, 0x1f
sar eax, 5
dec eax
test eax, eax
jl 0x513b1f
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 - 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 0x513af0
inc dword [ebp - 0x18]
dec dword [ebp - 0x24]
jne 0x513aeb
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.00512d80
mov eax, dword [ebp - 4]
mov eax, dword [eax + 0x11]
test eax, eax
jns 0x513b47
add eax, 0x1f
sar eax, 5
dec eax
test eax, eax
jl 0x513ba7
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]
mov edx, dword [ebp - 0x1c]
lea edx, [ebp + edx*8 - 0x48]
mov ecx, dword [ebp - 0x18]
xor al, byte [edx + ecx]
mov edx, dword [ebp - 0x18]
shl edx, 2
add edx, dword [ebp - 0x1c]
mov ecx, dword [ebp + 8]
mov byte [ecx + edx], al
inc dword [ebp - 0x1c]
cmp dword [ebp - 0x1c], 4
jne 0x513b5f
inc dword [ebp - 0x18]
dec dword [ebp - 0x24]
jne 0x513b5a
jmp 0x513ba7
mov dword [ebp - 0x10], 0xfffffffb
jmp 0x513bb3
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