Ethical Hacking

Root Kit

A rootkit is a collection of computer software, typically malicious, designed to enable access to a computer or areas of its software that would not otherwise be allowed (for example, to an unauthorized user) while at the same time masking its existence or the existence of other software

VPN

A virtual private network (VPN) extends a private network across a public network, such as the Internet. It enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network, and thus benefit from the functionality, security and management policies of the private network.[1] A VPN is created by establishing a virtual point-to-point connection through the use of dedicated connections, virtual tunnelling protocols, or traffic encryption

VPS

A virtual private server (VPS) is a virtual machine sold as a service by an Internet hosting service. A VPS runs its own copy of an operating system, and customers have superuser-level access to that operating system instance, so they can install almost any software that runs on that OS

Terminal

Computer console, a text output device for system administration messages Computer terminal, a hardware device for data entry and display in a computer system

DDoS

Denial-of-service Level II The goal of DoS L2 (possibly DDoS) attack is to cause a launching of a defense mechanism which blocks the network segment from which the attack originated. In case of distributed attack or IP header modification (that depends on the kind of security behavior) it will fully block the attacked network from the Internet, but without system crash.

Grey Hat Hacking

The term "grey hat" or "gray hat" refers to a computer hacker or computer security expert who may sometimes violate laws or typical ethical standards, but does not have the malicious intent typical of a black hat hacker. The term began to be used in the late 1990s, derived from the concepts of "white hat" and "black hat" hackers.[1] When a white hat hacker discovers a vulnerability, they will exploit it only with permission and not divulge its existence until it has been fixed, whereas the black hat will illegally exploit it and/or tell others how to do so. The grey hat will neither illegally exploit it, nor tell others how to do so.[2]

White Hat Hacking

The term "white hat" in Internet slang refers to an ethical computer hacker, or a computer security expert, who specializes in penetration testing and in other testing methodologies to ensure the security of an organization's information systems.[1] Ethical hacking is a term coined by IBM meant to imply a broader category than just penetration testing.[2] White-hat hackers may also work in teams called "sneakers",[3] red teams, or tiger teams.[4]

Tor

Tor is free software for enabling anonymous communication. The name is an acronym derived from the original software project name The Onion Router,[7] however, the correct spelling is "Tor", capitalizing only the first letter.[8] Tor directs Internet traffic through a free, worldwide, volunteer network consisting of more than seven thousand relays[9] to conceal a user's location and usage from anyone conducting network surveillance or traffic analysis

FUD

Fully undetectable (usually shortened as "FUD") can stand for data that had been encrypted, making it appear to be random noise. It can also stand for software that cannot be detected by anti-viruses when a scan is performed.[1] The term is used in hacker circles to refer to something that appears to be clean to many anti-viruses, even though it is a hacking tool.

Proxy

In computer networks, a proxy server is a server (a computer system or an application) that acts as an intermediary for requests from clients seeking resources from other servers. A client connects to the proxy server, requesting some service, such as a file, connection, web page, or other resource available from a different server and the proxy server evaluates the request as a way to simplify and control its complexity

DoS

In computing, a denial-of-service (DoS) attack is an attempt to make a machine or network resource unavailable to its intended users, such as to temporarily or indefinitely interrupt or suspend services of a host connected to the Internet. A distributed denial-of-service (DDoS) is where the attack source is more than one, often thousands of, unique IP addresses. It is analogous to a group of people crowding the entry door or gate to a shop or business, and not letting legitimate parties enter into the shop or business, disrupting normal operations. Criminal perpetrators of DoS attacks often target sites or services hosted on high-profile web servers such as banks, credit card payment gateways; but motives of revenge, blackmail[1][2] or activism[3] can be behind other attacks.

Firewall

In computing, a firewall is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules.[1] A firewall typically establishes a barrier between a trusted, secure internal network and another outside network, such as the Internet, that is assumed not to be secure or trusted

Key Loggers

Keystroke logging, often referred to as keylogging or keyboard capturing, is the action of recording (logging) the keys struck on a keyboard, typically covertly, so that the person using the keyboard is unaware that their actions are being monitored

Phishing

Phishing is the attempt to acquire sensitive information such as usernames, passwords, and credit card details (and sometimes, indirectly, money), often for malicious reasons, by masquerading as a trustworthy entity in an electronic communication

SQL Injections

SQL injection is a code injection technique, used to attack data-driven applications, in which malicious SQL statements are inserted into an entry field for execution (e.g. to dump the database contents to the attacker)

Reverse-shells

Shell shoveling, in network security, refers to the act of redirecting the input and output of a shell to a service so that it can be remotely accessed.[1] In computing, the most basic method of interfacing with the operating system is the shell, on Microsoft Windows based systems this is a program called CMD.EXE or COMMAND.COM, on Linux or Unix based systems it may be any of a variety of programs such as bash, ksh etc.

Black Hat Hacking

A black hat hacker is a hacker who "violates computer security for little reason beyond maliciousness or for personal gain."[1] The term was coined by Richard Stallman, to contrast the maliciousness of a criminal hacker versus the spirit of playfulness and exploration of hacker culture, or the ethos of the white hat hacker who performs hackerly duties to identify places to repair.[2] It is a reference to the black and white hat symbolism in film. Black hat hackers form the stereotypical, illegal hacking groups often portrayed in popular culture, and are "the epitome of all that the public fears in a computer criminal".[3] Black hat hackers break into secure networks to destroy, modify, or steal data; or to make the network unusable for those who are authorized to use the network.