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.

Watering Hole Attack
By: bachan
February 27, 2017

Hello, Guys! I think many of you have heard the recent news that a group, known as Lazarus, infected a Polish bank's website and targeted 150 different IP Addresses around 31 countries. The trick used by the group was called the Watering Hole Attack. Let's take a look at what a watering hole attack is. It is a ...

Raw Log Anatomy: Understanding My SIEM System
By: deleriumendless
February 26, 2017

Raw Log Anatomy: My SIEM system reads my raw logs, why do I need to understand them? **NOTE: Examples used in this posting are very old, but the principles remain sound. I had a choice between using very old logs that I could leave whole, or make significant changes ...

Coding Theory: The wide world of cryptography
By: Rachel Laura M
February 25, 2017

Coding theory and cryptography are two well-known areas of information security as both are necessary for today’s technology oriented; online-based world. However, many wonder what is the difference between coding theory and cryptography? Essentially, coding theory is associated with error correcting codes. When learning about coding theory, remember these three associated terms: Data Compression: ...

Kali Linux - Hacking OS Tutorial Series
By: pnp.007
February 25, 2017

UA Tester A tool for User Agent WAF, IDS/IPS, and Redirection testing.UA-tester is a tool to check whether a website provides different pages for different user agents like for mobile, desktop bots etc. Well, this tool also delivers a lot of information. It is basically a python script which runs through various user-agents on a specified site. It also ...

Crack the CEH Exam
By: priyajatoliya
February 24, 2017

EC-Council stands for International Council of E-Commerce Consultants that is a member-based professional organization of global reach. Certified Ethical Hacker (CEH) is an EC council certification that is awarded to indicate your adeptness in network security, particularly in checking malicious hacking attacks, through preventive countermeasures. A certified ethical hacker can infiltrate a network and inspect extant vulnerabilities at the behest of ...

UNM4SK3D: Google, Netflix, and Bill Gates
By: Olivia
February 24, 2017

#SHA-1 Maybe you've heard of it, and maybe you haven't. But Google just impressed the world again by producing the first successful SHA-1 collision attack ever. And that means it's officially time for services to migrate to safer cryptographic hashes.  Let's back up. SHA-1, Secure Hash Algorithm 1, is a very ...

How to Delete Linux and Fix Windows Boot System
By: Suminder Singh
February 23, 2017

Hello, users!This is my first post on Cybrary, so please leave comments at the bottom letting me know how I did with this.I'm going to tell you how to fix your dual windows system if you want to delete your Linux OS and save your Windows OS. Let's get started! Nothing tough, just follow my steps and you'll do ...

Insights and Trends on Micro Certifications
By: Olivia
February 22, 2017

Linux Academy and Cybrary  survey 6,000 IT professionals on experiences with micro certification. Results offer insight into learning preferences, certification in the workforce, training costs, and trends. To read the full press release, click here.

Tutorial: Extracting Passwords
By: Parichay Rai
February 22, 2017

I want to share one of the ways of extracting the password from a machine even when there is an antivirus agent installed on it.A pentester aims to compromise the domain and become the domain admin. Often I have observed that compromising a domain host is easy. This can be achieved by exploiting a vulnerability in the host using a vulnerability scanner such as ...

Legal Obligations for Backup and Recovery
By: Lawrence King
February 22, 2017

Some organizations that handle sensitive data may have legal obligations to backup and store data using a secure methodology. There also may be retention rates that must be adhered to. Some organizations such as healthcare, financial and accounting organizations may not be aware of the exact rules they must follow. Meeting the requirements can be complicated ...