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.

A Report on Reports: Briefing on the State of Security
By: Olivia
February 16, 2017

Many of you are probably aware that RSA is currently taking place.Having fomo like me? Twitter is a lifesaver if you are.Still, it’s hard to stay updated on all the juicy things being discussed there. Some of the major topics I’ve come across are: artificial intelligence (of course) and threat intelligence.A conference known for being ‘where the world talks ...

Raw Sockets Python SYN TCP SCAN
By: r00t_privilege
February 16, 2017

This article explains how to create a raw socket and use it to do an SYN or ACK or XMAS scan using python, note that you could also use it to make a Denial of Service attack (syn flooding ...)See code below: import socket,struct from struct import * # checksum functions needed for tcp checksum , ...

Advanced EXE Multi Protection Against Reverse Engineering with Free Tools
By: Babak Esmaeili
February 15, 2017

Estimated reading time: 4 minutes Advanced EXE multi protection against reverse engineering by free toolsHello Cybrarians,This essay is about protecting .exe files against reverse engineering and making it harder for crackers to unpack and crack our .exe files. We are going to use free tools for this purpose but this time we use them in a ...

How to get TCP/IP Certified
By: Olivia
February 14, 2017

Many Cybrarians have been asking the question, “How do I get _ certified?” There are many resources across the internet that discuss how you can earn various certifications.  I wanted to get specific in a series of blog posts on how you can earn certifications in some of Cybrary’s most popular topics by providing a more ...

So you want to be my CISO?
By: rcubed
February 14, 2017

What would you say about a job where the primary attributes were only accepting workaholics, where your successes received little notice but your slip ups most likely would cost you your job or worse, get worldwide media attention and you could never let your guard down? Sounds like the job description for an NHL goalie. Actually, it’s the job ...

Basic FootPrinting | How to use #nslookup for Ethical Hacking
By: ryan c
February 14, 2017

How to Use  #nslookup  for Ethical Hacking and find various DNS Queries which will help us in gathering more information from the system or website that we want for our Hacking Project. Step 1  is to go to www.wikipedia.org/wiki/ListorDNSrecordtypes Step 2 is to open your command prompt. Step 3, type nslookup then ...

Juliar.Future Function Hoisting
By: Rattar
February 14, 2017

Juliar.Future (J.F) provides function hoisting.In each Juliar.Future script, you should have a main() function. If you don't have this function, that means the file cannot be called directly and must be required.So let's create our main function function main() = { hello(); } ...

The Future of Programming – It’s where the Money is!
By: GWCitroner
February 13, 2017

According to a 2015 report from Burning Glass ; there were almost 7 million job openings that required coding skills, and programming jobs are growing 12% quicker than average.But, the most important fact we can take away from this report is: fully 50% of programming jobs are not in IT. Hospitals, banks, and manufacturers all have positions that require ...

FootPrinting with whois tool
By: bhamburejasmin
February 13, 2017

Hello Everyone,Do you want to determine the owner of the domain name, IP address, and other bits and pieces? Querying with Whois is one of the solutions: 1) To find information organizational type (whois –h whois.ripe.net grant)2) Domain Type (whois DomainName)3) Specific IP Type (whois IPaddress)) The following websites are for various countries. They will determine the whois information. ...

CTF Mugardos 2015 Writeup – Stego200
By: KALRONG
February 13, 2017

Statement:  AM 200 points Now seriously, when it comes to listening to music, nothing is better than the radio ... well, maybe that's not completely true. Maybe we are too nostalgic. Format the answer: - Uppercase and lowercase as they appear in the flag - No spaces ...