Waching daily Mar 30 2018

today i'm going to draw our logo

For more infomation >> How to draw a logo - Duration: 2:44.

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VAMOS MUDAR PARA ITÁLIA | CIDADANIA ITALIANA - Duration: 4:53.

For more infomation >> VAMOS MUDAR PARA ITÁLIA | CIDADANIA ITALIANA - Duration: 4:53.

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Remédio Caseiro Para Diabetes! Sintomas Podem Desaparecer Em 5 Dias!!! - Duration: 3:30.

For more infomation >> Remédio Caseiro Para Diabetes! Sintomas Podem Desaparecer Em 5 Dias!!! - Duration: 3:30.

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ey! Look for patterns - Duration: 2:22.

With the all the information that you are being bombarded with when auditing, testing,

reverse engineer and so forth, it's important AND natural to look out for patterns.

For example a lot of web applications encode data in base64.

Sometimes in cookies, sometimes in APIs.

And one thing I immediately notice in base64 strings is "ey!"

Look at this string.

Does it tell you anything?

Well maybe you already can recognise that it is base64 without having to attempt to

decode it, but anything besides that?

Anything about the data it encodes?

Without having to do a base64 decoding I KNOW this is going to be JSON data.

You see, JSON starts with a curly brace and a quote, and that results in e, y

And being able to see that saves time, and allows you to quickly find interesting data.

Same with debugging binary exploitation challenges.

When you look at a hex memory dump, it is very overwhelming when you start out.

So many different values.

But eventually you start to learn to see here patterns.

That is a stack address, I know that because it's very similar to the stack pointer and

something you see a lot when doing this stuff.

But also here this fairly random looking data, I don't even have to decode values from

it, to see what it is, it is clearly ASCII.

These bytes are in the ascii range.

You can generally see that based of the first nibble.

Ascii really only goes from around 2-something to 7-something.

20 is a space.

You might also see soem null bytes and obviously A or D also for new lines but most characters

are in this area.

So over time your brain develops this intuition to quickly judge if most of these values look

like ascii.

And so looking for and learning patterns like this will help you to be much more efficient

when researching something.