let's see:įirst make sure you have git installed, which nowadays comes installed by default on major Linux distros. If this command didn't work for you then there is a way, a long way. (If you are using Kali Linux it is Preinstalled, and you skip this step.) sudo apt- get install theharvester The easiest way of installing theHarvester in 2020 is to just paste this command on your terminal, but unfortunately, it doesn't work every time and for every system. If anytime you feel that you are not able to follow the article the above acsiinema will help. But for this post, we will use Kali Linux as our Linux Distro. Installing the tool:īefore proceeding make sure you have a working Linux environment maybe Kali Linux, Ubuntu, or any other Linux distro running on Vmware, Virtualbox, or Hyper-v or even WSL 1/2 will work. And also your target will never know that you're searching for their information. In a few minutes, we can quickly find the name of key people in the company, which can be useful for social engineering attacks.Īnd the best part about this is that we can search as much as we want because it's not illegal to search for data that is exposed to the internet. For example, you may find metric diagrams or even database backups that may be useful later in the red team engagement.Īnd also, we can use sites such as LinkedIn to find more information about the employees of a company. As you may know, Google indexes data from several websites so you can find email addresses even if they're posted on a different website.Īnd more than that, we can use those search engines to find sensitive files that may be exposed to the public. Sometimes the main website of a company is secure, but their other systems may not be such as the email server or the HR applications.Īlso, we can use the same search engines to find email addresses related to this company. In just a few seconds we can do a few searches and find subdomains that we could attack later. Without sending a single packet to our target we can gather tons of valuable information.įor example, we can use search engines such as Google, Yahoo, and Bing to get information about WordPress and Intigriti. So, did you know that you can gather tons of information about your target just by doing some searches on the internet? Yes, that's right. Your first step is getting information about your target. Imagine you are doing a bug hunting about WordPress and Intigriti. Understanding Information Gathering and theHarvester: Before proceeding make sure you have legal rights or written consent of doing recon or running theHarvester on your target. So they are all open for performing recon or running theHarvester. Important Note:Īll the targets used in this post are from publicly available bug bounty platforms like HackerOne, Bugcrowd, and Intigriti. Then we also cover how to use the tool to find information about the people that work in the company, such as email addresses, Twitter accounts, and even LinkedIn profiles. We start by showing how to use theHarvester to find subdomains and IP addresses that could be interesting for an exploitation phase. So, in this article, we'll cover theHarvester, which will help you to automate the information gathering so you can find tons of interesting information about your target. In a red team engagement, one of the most important steps of the whole project is gathering information about your client, and that's because the information that you collect in here will be really useful during the exploitation phase of your engagement.įor example, if you do a really good information gathering job, you may find not‑so‑secure servers open to the internet, which can be way easier to exploit than the main company website. In this post, you will learn how to gather both technical and helpful information about your target using theHarvester tool.
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