What’s up yall!

In this post we’ll take a look at Python for data recovery.

We’ll be covering a script I made that reads through a disk (in this example, a USB) and checks for specific file signatures in an attempt to recover photos and images (.jpg) from said disk.

If you haven’t seen my previous post about data recovery using a hex editor, I highly recommend it since a lot of the knowledge from that post will be automated using this script.

I’ll also get into how you can use this script to search for other types of files later on… 😉

Let’s get into the tutorial!

In this post, we’ll check out file transfer in Python 3 with file size verification check.

In many Python scripts you’ll come across the need for sending and receiving files over the network, so I decided to make this tutorial for a simple yet stable set of scripts to implement whenever needed.

We’ll only use standard Python libraries included with a default installation: socket, time, os and sys.

One nice little detail we’ll implement is file size verification, so that the receiving party can be sure they received the file with the exact amount of bytes the sender intended.

Let’s check it out!

Whats up guys?

In this post we’ll take a look at a Python script to break a file (image, executable, whatever) into several chunks of raw bytes and another one to merge those chunks together and reassemble that file back.

Since I’ve been doing a cloud security certification, it mentioned a technique widely employed in cloud of storing chunks of files into different virtual machines for security purposes (kind of like a RAID setup).

That made me think: ah, this could be a cool Python script to code! Hence, this tutorial. 🙂

Each script is less than 20 lines of code and not difficult at all, just basic file manipulation of raw bytes.

In any case, I have made an introduction to files in Python to get you started – if you are new to programming and/or Python, check it out since it should be all that you need for this tutorial.

What’s going on guys?

In this post we’ll do a brief introduction into handling files in Python 3.

We’ll be looking at the following file operations:

• Opening files for read mode
• Opening files for write mode
• Basic file operation functions
• Reading files in binary mode

This isn’t necessarily an in-depth tutorial, just something to get you started.

Let’s begin!

What’s up guys!

Hope y’all been alright lately. I’ve been studying a bunch as part of a certification package I was awarded – focused on network security. While I’m excited to do it and learn a lot of cool stuff, it’s also draining pretty much all my free time.

While I’ve been doing this certification I’ve had to dive deep into a lot of theory-oriented network stuff like frames, packets and all those meaningless terminologies. It’s so much theory that I had to install Scapy just to see some of these packets in action and get hands-on with the damn thing – I mean seriously if you’ve taken some of these certs you’re probably used to how dry and boring it gets just reading about protocols and not actually doing anything.

Anyway we are here to talk about Scapy today and not my boring life 🙂

What is Scapy?

To put it simply, its a packet sniffing and crafting program. There is a lot more you can do with it like decoding certain protocols and interacting with Wireshark captures among other cool things (see the documentation page).