What is UDP Scanning? - GeeksforGeeks (2024)

Port Scanning Techniques By Using Nmap

Nmap is a security auditing tool used in the security field to actively enumerate a target system/network. It is one of the most extensively used tools by network administrators and conversely attackers for reconnaissance (enumeration), the first step in the 5 phases of hacking. Nmap is used to actively probe the target network for active hosts(hos

What is SYN Scanning?

Internet and its usage have evolved over the years. The Internet has become an integral part of daily human activities, and it becomes hard to imagine life without the Internet. The Cyber world has become so fascinating that it is often the soft target of cyberattackers and hackers to steal personal confidential information via the internet as a me

What are Scanning Attacks?

Scanning in ethical hacking is a network exploration technique used to identify the systems connected to an organization's network. It provides information about the accessible systems, services, and resources on a target system. Some may refer to this type of scan as an active scan because it can potentially disrupt services on those hosts that ar

What is TCP-ACK Scanning?

TCP-ACK is a third step of the TCP 3-Way Handshake process (SYN, SYN-ACK, ACK). In TCP-ACK, the client acknowledges the response of the Server, and establish a connection to proceed with the data transfer and any other communication processes. TCP-ACK Scanning: In this scan, the ACK packets are sent to the target port in order to know that if that

Port Scanning Attack

Prerequisite: What is scanning attacks? Cyber-Attackers use various different methods to carry out the execution of Cyber-Attacks on the computer network, depending on the ease through which the computer network can be attacked on its vulnerability. Each type of Cyber-Attack is risky and harmful in nature. Awareness about cyber crimes is very impor

IPv6 Scanning

Pre-requisites: IPv6 IPv6 Scanning is a term coined for Scanning of IPv6 Networks, IPv6 addresses have larger space addresses hence it is slow to scan IPv6 addresses as compared to IPv4 addresses, but it is not that hard to scan as we have many tools that can help in this process of scanning. We can scan for IPv6 Networks by different tools availab

UDP Session Hijacking

UDS Packet is a low-level transport protocol used on LAN's and WAN's to send packets between two endpoints. UDP Session Hijacking is an attack where the attacker tricks the victim into using their computer as part of a botnet, typically by sending them unsolicited requests disguised as coming from legitimate sources. This illegitimate traffic can t

Protobuf UDP Message and its Types in Wireshark

The concept of Protobuf UDP Message Type in Wireshark is to parse the data on the specified UDP port, Wireshark uses this table to determine the type of Protobuf message, in case the payload of UDP includes the Protobuf encoding (s) on the specific ports. The "User Table" consists of the following fields that keep the configuration maps for UDP Por

Cyber Security Interview Questions

Cybersecurity is the act of protecting computer systems, networks, programs, and data from digital attacks, unauthorized access, damage, or theft. Cybersecurity is a critical aspect of modern technology, with its importance growing as digital systems become increasingly integrated into our daily lives. With threats ranging from data breaches to mal

Introduction to Dirb - Kali Linux

Dirb is an online directory scanner that searches web servers for hidden files, directories, and pages. It is a free and open-source utility included in the Kali Linux distribution, a popular operating system for penetration testing and ethical hacking. Dirb may be used to detect typical web server folders and files, such as admin pages, backup fil

How to hack android phones with Phonesploit

Understanding how to hack android phones with Phonesploit has become a topic of interest and concern. Phonesploit is a powerful tool that allows users to remotely access and control Android devices, offering capabilities ranging from retrieving sensitive information to executing commands on the target device. This tool leverages vulnerabilities in

Cyber Security Tutorial

Cyber security, also known as information technology security, refers to the practice of protecting systems, networks, and programs from digital attacks. These cyber-attacks are usually aimed at accessing, changing, or destroying sensitive information, extorting money from users, or interrupting normal business processes. This cybersecurity tutoria

What is Google Dorking?

Google Dorking is a technique used by hackers and security researchers to find sensitive information on websites using Google's search engine. It is also known as Google hacking or Google Dorking. Search FiltersGoogle Dorking involves using advanced search operations in Google to search for specific keywords, file types, or website parameters. Thes

Sniffing of Login Credential or Password Capturing in Wireshark

Wireshark is a free and open-source packet analysis tool that lets you capture and analyze network traffic in real-time. It is available for Windows, macOS, and Linux operating systems. Wireshark captures network packets and displays the captured data in a human-readable format for easy analysis and troubleshooting of network issues. It can scan a

Ethical Hacking Tutorial

This Ethical Hacking tutorial covers both basic and advanced concepts of Ethical Hacking. Whether you are a beginner or an experienced cybersecurity professional, this tutorial is the perfect resource to learn how to tackle vulnerabilities and weaknesses in systems before malicious hackers can exploit them. From understanding the hacking basics to

How To Use Radare2?

Pre-requisites: Penetration Testing and Reverse Engineering Radare2, or "r2," is a powerful and versatile open-source reverse engineering toolkit. It can be used to analyze, disassemble, and debug a wide range of executable formats, including native applications, firmware, and even proprietary file formats. But why would someone want to reverse eng

How To Use Ophcrack for Windows Password Recovery?

Ophcrack is a free, open-source tool that can be used to recover lost Windows passwords. It works by using pre-computed tables to crack password hashes, allowing users to recover their forgotten passwords quickly and easily. In this article, we will take a look at how to use Ophcrack for Windows password recovery, with step-by-step instructions and

How to Install Termux on Android?

Termux is a Free and Open-source Terminal Emulator which allows you to work under a Linux environment on Android or IOS Phones. It contains a built-in package manager that enables you to download and set up numerous testing and development apps across your phones. Using its package manager, it automatically installs the base system and certain addi

Nmap Cheat Sheet

Nmap (Network Mapper) is a free and open-source network detection and security scanning utility. Many network and system administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring server or service availability. Nmap uses raw IP packets in a novel way to determine the hosts available o

How To Extract rockyou.txt.gz File in Kali Linux?

The first thing that comes to mind when we think of brute-forcing a login with word lists is rockyou.txt. There is a lot of talk on the internet about rockyou.txt being the most popular file used by hackers and crackers to extract passwords. The interesting thing about this is that ethical hackers can use it to breach the security of any web applic

How Hackers Use Social Engineering to Get Passwords on Facebook?

Social engineering is a powerful method for hackers to exploit computer systems without the use of malware or computer hacking tools. To carry out a successful social engineering hack, ethical hackers need to understand how to effectively use social media and human interaction to obtain sensitive information. Social engineering is an essential skil

DNS in Wireshark

DNS or Domain Name System abbreviated as DNS is a system used to resolve domain names, IP addresses, different servers for e.g., FTP servers, game servers, active directories, etc., and keep their records. Invented by Jon Postel and Paul Mockapetris in 1982, DNS has now become one of the most significant players in the modern-day web world. DNS act

Types of SQL Injection (SQLi)

SQL Injection is an attack that employs malicious SQL code to manipulate backend databases in order to obtain information that was not intended to be shown, The data may include sensitive corporate data, user lists, or confidential consumer details. This article contains types of SQL Injection with their examples. SQL Injections-LABS (a platform to

Top 50 Penetration Testing Interview Questions and Answers

Penetration testing stands for a process where the security of a computer system is tested by trying to gain access to its internal systems. In order to carry out penetration testing, an attacker must first identify which ports are open on the target machine and then use those ports in order to exploit security vulnerabilities. Once these vulnerabi

How to Brute-Force SSH in Kali Linux?

The Secure Shell Protocol (SSH) is a cryptographic network protocol for operating network services securely over an unsecured network. Its applications are remote login and command-line execution. SSH protocols are based on the client-server architecture, i.e the SSH client and the SSH server. This article explains the SSH Bruteforce attack. In thi

Orthogonal Frequency-Division Multiplexing (OFDM)

Orthogonal frequency-division multiplexing (OFDM) is a digital communication technique initially developed for use in cable television systems. OFDM is similar to the broadcasting technique known as frequency division multiplexing (also known as FDM), which uses a multitude of transmitters and receivers to send information on different frequencies

Packet Switched Network (PSN) in Networking

A packet-switched network (PSN) is a kind of computer communications network that sends data in the form of small packets. It allows the sender to send data or network packets to the source and destination node over an internet network channel that is transferred between multiple users and/or applications. A packet-switched is also called a connect

What is Burp Suite?

Burp or Burp Suite is a set of tools used for penetration testing of web applications. It is developed by the company named Portswigger, which is also the alias of its founder Dafydd Stuttard. BurpSuite aims to be an all in one set of tools and its capabilities can be enhanced by installing add-ons that are called BApps. It is the most popular tool

What is Cross Site Scripting (XSS) ?

Cross Site Scripting (XSS) is a vulnerability in a web application that allows a third party to execute a script in the user's browser on behalf of the web application. Cross-site Scripting is one of the most prevalent vulnerabilities present on the web today. The exploitation of XSS against a user can lead to various consequences such as account c

Information Security | Confidentiality

Confidentiality is the protection of information in the system so that an unauthorized person cannot access it. This type of protection is most important in military and government organizations that need to keep plans and capabilities secret from enemies. However, it can also be useful to businesses that need to protect their proprietary trade sec