0P3N Blog
Cybrary’s Open Blog is a user contributed cybersecurity knowledge base that brings together content highlighting the latest tools, exploits, technologies and insights in the industry.


#methbot Slow clap for fraud-prevention firm White Ops who discovered the biggest digital ad fraud ever, lovingly dubbed 'Methbot.' This may sound like a bad dream, or just another episode of Breaking Bad, but Methbot, a 'robo-browser that spoofs all the necessary interactions needed to initiate, carry out and complete ad transactions,' ...


Common Layer 3 (network layer) and Layer 4 (transport layer) Attacks: ICMP ( Definition from The Tech Terms Dictionary ) Stands for "Internet Control Message Protocol." When information is transferred over the Internet, computer systems ...


So, you are interested in becoming a digital forensic analyst? That is great! It is an exciting and growing field, one filled with many possibilities for the enthusiastic learner. The purpose of this article is to introduce those interested in the forensics field with one of the most important tools in their toolbox, the hardware write blocker.Any computer ...


As the clock ticks down to midnight on December 31 st and signals the end of 2016, a year that’s been the center of a slew of ‘worst year ever’ memes and remarks across the internet, it is also a reminder of the predications and resolutions being made around the world. So before you raise a toast, consider what ...


Were you the kind of kid that loved to take stuff apart to see how it worked? As an adult, are you constantly coming up with suggestions for how things could be better-designed and built? Do you have a pit bull-like tenacity for making sure that problems are acknowledged and resolved? If this sounds like you, then ...


Are your customers receiving spoofed emails? Here’s a simple solution.Most of us have heard this term before “E-mail spoofing”. What is this? Why attackers use this? How is spoofing used in social engineering attacks? How can companies address this problem? Let’s explore a simple idea that no one had presented before. Email spoofing is the creation of email ...


Being that I’m new to cyber security, I can’t help but gape at the number of ‘hacks’ I hear about on an almost daily basis.The other day I read an article on a KFC rewards program in the UK whose members were hacked. There were a lot of corny puns and I thought to myself “not even the chicken is ...


Hello, Cybrarians! What's going on?Sometimes you find that the ping command is not working. You get a message "Request timed out" or "Packet lost 100%". There could be many reasons why these messages show up.Ping uses ICMP packets to check whether the site is up or down. Ping is used for network analysis, firewall analysis specifically. Some websites block ICMP packet ...


I was searching for the frameworks where I can create payloads, various types of virus attacks, and PowerShell attacks quickly and easily. Then I got a toolkit, Brutal. There is no need for Human to Keyboard interaction (HID-Attacks).Using it you can take reverse TCP connections, exploit local DDL, read out all the saved passwords.I'll tell you how to use it ...


When you hear "attack on a computer", what do you think? You probably think it's some guy sitting behind a computer, using the internet to conduct attacks.What people do not realize is that even if a computer is not connected to the internet, it's still vulnerable to an attack through the magic of war dialers. What are war dialers? ...