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Ahead of the Hackers: Free Tools and Tips for Testing the Security of Your Environment Against Attacks

There are several open source (aka free) tools that you can use to the security of your applications and servers like a hacker. One of the best is Kali Linux, a free tool that s almost every layer of you environment (Application, Network, Host, Foundation).

About Kali Linux

Kali Linux was a creation of Offensive Security in an effort to achieve effective defensive security through an offensive mindset. Kali is supported not only by Offensive Security, but also a very impressive community of people who contribute content and software to the project. Kali is preinstalled with over 600 penetration ing scripts and programs (http://tools.kali.org/tools-listing). Formerly known as Backtrack, it’s been used by security professionals and hackers alike for years. This is one of the best tools that you can use to your security.

Kali has just recently released version 2.0 of its open source penetration ing kit. It can be downloaded here.

Steps for ing your security with Kali Linux

Step 1: First you want to do some information gathering on your servers:

  • Run a python script called the harvester to query google, Bing, Linkedin, and PGP to find information related to your domain. It will include email addresses, IP addresses, and server configurations.
  • OS fingerprinting will give you the versions of operating systems you may be running, which will allow you to look up any outstanding vulnerabilities.
  • Run fragroute, which has a simple rule set language to delay, duplicate fragment, and analyze any intrusion detection that you might have in place.
  • Finally, run NMAP, which will simply scan your IP address to find what TCP/UDP ports are open. You want to make sure that the only ports open are what you need to conduct business—nothing more and nothing less.

Step 2: Nessus is a tool used by auditors and analysts to assess vulnerabilities in systems, networks, and applications. While this doesn’t replace the auditors who certify you for compliance, it does make you more secure by giving you a better understanding of the risks within your environment. It has configuration and vulnerabilities scanning capabilities, as well as malware detection and sensitive data searches. You can also utilize particular cloud services that will conduct the same scans and auditing in a way that is built for the cloud.

Step 3: WPScan is a great tool if you are utilizing wordpress in your infrastructure. WPScan looks for vulnerabilities that might have been installed in your environment through vulnerable plugins and themes. The capabilities of this tool include brute forcing your passwords, finding vulnerable themes/plugins, and enumerating user lists to focus a password dictionary brute force. This is a very efficient tool and is maintained by the community and the WPScan team.

Step 4: The automater is a script that will scan various blacklists to verify if your IP addresses have ever been involved in any botnet activity—if the previous or current users of that IP address were compromised and used to attack others, they would appear on one of those lists. This will ensure your public IP address won’t be blocked when you launch your live site.  The automater checks IPvoid.com, Robtex.com, Fortiguard.com, unshorten.me, Urlvoid.com, Labs.alienvault.com, ThreatExpert, VxVault, and VirusTotal.

These are just a few of the tools that are offered in Kali Linux, but they will get you started down the right path, by exploring the distribution of Kali and ing your environment to see how secure you really are.

Learn more about 2W Managed Cloud Security and how our partnership with Alert Logic can ensure your environment’s security

Article contributed by Alert Logic

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If you missed the last article in our four-part blog series with our strategic partner, Alert Logic, check out the guide to help digital businesses prepare for—and respond to—cyber incidents here.

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