“Whether it is port scanning or to get a reverse shell, everything is possible with Netcat.” Today in this article we will be exploring one of the most commonly used network utility and will learn how the other frameworks reinforce “Netcat” in order to generate a session.
Table of Content
Introduction
Why Netcat?
Netcat Basic command
Port Scanning
TCP Scan
UDP Scan
Chatting
Banner Grabbing
File transfer
Linux Reverse Shell
Randomized port
Grabbing the HTTP Banner
Windows Reverse Shell
Windows 10 Persistence
Msfvenom Payload with Netcat
Introduction
Netcat technically used as “nc” – is a network utility that uses the TCP and UDP connections in order to read and write in a network. It can be used by both the attackers and the security auditors.
Counting in the attacking scenario, this cross-functional tool can be driven by scripts which makes it quite dependable and if we discuss the security section, it helps us to debug and investigate the network.
Why netcat is such dependable, that it can do everything whether it is port scanning, banner grabbing, transferring a file, or even generating a reverse connection?
Let’s check out the major netcat features and unlock this question.
It acts as a simple TCP/UDP/SCTP/SSL client for interacting with web servers, telnet servers, mail servers, and other TCP/IP network services.
It redirects the TCP/UDP/SCTP traffic to other ports or hosts by acting as a SOCKS or HTTP proxy such that the clients specify their own destinations.
Netcat can even connect to destinations through a chain of anonymous or authenticated proxies.
Encrypts communication with SSL, and transport it over IPv4 or IPv6.
It acts as a connection broker, allowing two (or far more) clients to connect to each other through a third (brokering) server.
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