Active Reconnaissance Search Results

How To: Understand & Use IPv4 to Navigate a Network

You may not know it, but the IPv4 address of your computer contains tons of useful information about whatever Wi-Fi network you're on. By knowing what your IPv4 address and subnet mask are telling you, you can easily scan the whole network range, locate the router, and discover other devices on the same network.

How To: Detect Vulnerabilities in a Web Application with Uniscan

With the number of web applications out there today, it comes as no surprise that there are just as many vulnerabilities waiting for hackers to discover. Finding those vulnerabilities can be a difficult task, but there are plenty of tools available to make the process easier. While it won't help find any zero-days, web scanners such as Uniscan will detect common vulnerabilities.

How To: Discover Open Ports Using Metasploit's Built-in Port Scanner

One of the first steps in reconnaissance is determining the open ports on a system. Nmap is widely considered the undisputed king of port scanning, but certain situations call for different tools. Metasploit makes it easy to conduct port scanning from directly inside the framework, and we'll show you three types of port scans: TCP, SYN, and XMAS.

How To: Use Maltego to Target Company Email Addresses That May Be Vulnerable from Third-Party Breaches

The easiest way around a security policy is to find users who don't follow it. The Have I Been Pwned database identifies accounts with information breached by major third parties like Yahoo and LinkedIn. With Maltego, hackers can locate breached accounts created using company email addresses, potentially giving attackers access to a company account if the employee reuses a compromised password.

Buyer's Guide: Top 20 Hacker Holiday Gifts for Christmas 2017

Hackers can be notoriously difficult to buy gifts for, so we've curated a list of the top 20 most popular items Null Byte readers are buying during their ethical-hacking studies. Whether you're buying a gift for a friend or have been dying to share this list with someone shopping for you, we've got you covered with our 2017 selection of hacker holiday gifts — just in time for Christmas.

How To: Get Administrator Privileges on Mac

So yeah. Its AugustFackYou and I felt like posting today and being an active member of the community. After reading this please tell me if you have any comments on what I can do better or if this method is bad. Anyway today I will be showing you how to get root on a mac. I managed to become an administrator at my school with this and one other method.

Dissecting Nmap: Part 1

Welcome aboard my inquisitive comrades. I am starting a new series that nobody expected coming. It may not seem very exciting at first, but await the last few parts as many startling discoveries will be made. This is a series which I plan to continue after the completion of Nmap, unless you have major objections.

How To: Get Root Access on OS X Mavericks and Yosemite

Hello all! In this tutorial, I'd like to show you one way of getting root on OS X. Check out this GitHub page for a recent privilege escalation exploit that was recently discovered. I've tested it and it works on both OS X 10.9 Mavericks and OS X 10.10 Yosemite, but appears to have been patched with OS X 10.11 El Capitan. If you check out the file main.m you can see where most of the magic is happening. This source code can very easily be changed to make it do more than just the system("/bin/...

WANTED: Hackers for Bug Bounties

In previous posts here, I have pointed out that hackers are in high demand around the world and in nearly every industry. Every military and espionage unit of every country is trying to hire high-quality, experienced hackers as fast as they can to hack their adversaries' computer systems in order to gain a strategic advantage and to spy.

Dark Side of the Prism: Get Alerted Whenever You Visit a Website Owned by a PRISM-Targeted Company

Since The Guardian published leaked documents exposing the depth of the NSA's spying powers, many people who've never put much effort into protecting their privacy are finally starting to pay attention. Evidence of public opinion concerning PRISM can be seen from the rise in traffic for pro-privacy sites like DuckDuckGo to the petitions demanding that the program be scaled back or done away with altogether. Some would argue that you waive your right to privacy by signing the terms of agreemen...

How To: Use Ettercap to Intercept Passwords with ARP Spoofing

ARP spoofing is an attack against an Ethernet or Wi-Fi network to get between the router and the target user. In an ARP-spoofing attack, messages meant for the target are sent to the attacker instead, allowing the attacker to spy on, deny service to, or man-in-the-middle a target. One of the most popular tools for performing this attack is Ettercap, which comes preinstalled on Kali Linux.

How To: Conduct a Pentest Like a Pro in 6 Phases

Penetration testing, or pentesting, is the process of probing a network or system by simulating an attack, which is used to find vulnerabilities that could be exploited by a malicious actor. The main goal of a pentest is to identify security holes and weaknesses so that the organization being tested can fix any potential issues. In a professional penetration test, there are six phases you should know.

How To: Hunt Down Social Media Accounts by Usernames with Sherlock

When researching a person using open source intelligence, the goal is to find clues that tie information about a target into a bigger picture. Screen names are perfect for this because they are unique and link data together, as people often reuse them in accounts across the internet. With Sherlock, we can instantly hunt down social media accounts created with a unique screen name on many online platforms simultaneously.

Hack Like a Pro: Snort IDS for the Aspiring Hacker, Part 2 (Setting Up the Basic Configuration)

Welcome back, my tenderfoot hackers! As you should know from before, Snort is the most widely deployed intrusion detection system (IDS) in the world, and every hacker and IT security professional should be familiar with it. Hackers need to understand it for evasion, and IT security professionals to prevent intrusions. So a basic understanding of this ubiquitous IDS is crucial.

How To: An Extended Guide on Runtime Crypters

Hello again, folks! I'm back with another (final) guide on runtime crypters which is an extension on my previous runtime crypter guide. If you have not read it yet, I highly recommend that you do since the fundamental theory of the PE format. Again, this will be a Windows-specific guide, so I'll repeat this: If you're a hater and cringe at the slightest sound of Microsoft's grotesque baby, feel free to close this tab, delete your history, exit your browser, pour some oil onto your machine and...

News: How Zero-Day Exploits Are Bought & Sold

Most of you already know that a zero-day exploit is an exploit that has not yet been revealed to the software vendor or the public. As a result, the vulnerability that enables the exploit hasn't been patched. This means that someone with a zero-day exploit can hack into any system that has that particular configuration or software, giving them free reign to steal information, identities, credit card info, and spy on victims.