Function at 0x485240
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x50d23d
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x834
push ebx
push esi
push edi
mov eax, edx
mov dword [ebp - 0x20], ecx
xor edx, edx
mov dword [ebp - 0x18], 0
xor edi, edi
mov dword [ebp - 0x24], edx
xor ebx, ebx
mov dword [ebp - 0x34], edx
mov dword [ebp - 0x30], edi
mov dword [ebp - 0x2c], ebx
mov esi, dword [ebp + 0x14]
xor ecx, ecx
mov edx, dword [ebp + 8]
mov dword [ebp - 0x28], ecx
lea ecx, [ebp - 0x1c]
push ecx
push dword [ebp + 0x18]
mov dword [ebp - 4], ebx
mov ecx, eax
push esi
push dword [ebp + 0xc]
mov dword [ebp - 0x14], ebx
mov dword [ebp - 0x1c], ebx
call fcn.004850c0
mov eax, dword [0x537258]
add esp, 0x10
push ebx
push ebx
push ebx
push ebx
push esi
call eax
mov edx, eax
mov dword [ebp - 0x3c], edx
test edx, edx
jne 0x4852c5
lea esi, [edi + 1]
jmp 0x485409
mov eax, dword [ebp + 0xc]
mov ecx, dword [0x537260]
movzx eax, al
neg eax
push 0
sbb eax, eax
and eax, 0x803000
add eax, 0x80000000
push eax
push 0
push 0
push dword [ebp - 0x20]
push edx
call ecx
mov ecx, eax
mov dword [ebp - 0x20], ecx
test ecx, ecx
jne 0x4852fd
lea esi, [eax + 2]
jmp 0x485400
mov eax, dword [0x537244]
lea edx, [ebp - 0x18]
push edx
push 0x800
lea edx, [ebp - 0x83c]
push edx
push ecx
call eax
test eax, eax
je 0x485397
lea esp, [esp]
mov ecx, dword [ebp - 0x14]
mov eax, dword [ebp - 0x18]
add ecx, eax
mov dword [ebp - 0x14], ecx
test eax, eax
je 0x48538a
xor esi, esi
test eax, eax
je 0x485361
lea eax, [ebp - 0x83c]
add eax, esi
cmp edi, ebx
je 0x48534b
mov al, byte [eax]
mov byte [edi], al
inc edi
mov dword [ebp - 0x30], edi
jmp 0x48535b
push eax
push edi
lea ecx, [ebp - 0x34]
call fcn.00402d00
mov ebx, dword [ebp - 0x2c]
mov edi, dword [ebp - 0x30]
inc esi
cmp esi, dword [ebp - 0x18]
jb 0x485335
mov eax, dword [0x537244]
lea ecx, [ebp - 0x18]
push ecx
push 0x800
lea ecx, [ebp - 0x83c]
push ecx
push dword [ebp - 0x20]
call eax
test eax, eax
jne 0x485320
mov esi, dword [ebp - 0x34]
mov ecx, dword [ebp - 0x14]
mov dword [ebp - 0x24], esi
jmp 0x48539b
mov esi, dword [ebp - 0x34]
mov eax, ecx
mov dword [ebp - 0x1c], eax
mov dword [ebp - 0x24], esi
jmp 0x48539e
xor esi, esi
xor ecx, ecx
mov eax, dword [ebp - 0x1c]
test eax, eax
jle 0x4853ad
cmp ecx, eax
je 0x4853ad
mov dword [ebp - 0x28], 5
mov dword [ebp - 0x14], 0x1009783
xor ecx, ecx
lea eax, [ecx - 0xc]
xor byte [ebp + ecx - 0x14], al
inc ecx
cmp ecx, 2
jb 0x4853b6
lea eax, [ebp - 0x14]
mov byte [ebp - 0x11], 0
push eax
push dword [ebp + 0x10]
call fcn.004e5362
add esp, 8
mov dword [ebp - 0x38], eax
test eax, eax
je 0x4853f4
push eax
sub edi, esi
push edi
push 1
push esi
call fcn.004ed168
push dword [ebp - 0x38]
call fcn.004e8be8
add esp, 0x14
push dword [ebp - 0x20]
call dword [0x537240]
mov esi, dword [ebp - 0x28]
push dword [ebp - 0x3c]
call dword [0x537240]
mov ecx, dword [ebp - 0x24]
test ecx, ecx
je 0x485436
sub ebx, ecx
mov eax, ecx
cmp ebx, 0x1000
jb 0x48542c
mov ecx, dword [eax - 4]
add ebx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x485449
push ebx
push ecx
call fcn.004df511
add esp, 8
mov ecx, dword [ebp - 0xc]
mov eax, esi
pop edi
pop esi
mov dword fs:[0], ecx
pop ebx
mov esp, ebp
pop ebp
ret
call fcn.004e47b0
int3