Welcome Back our Tech kiddies. Today, We will explore some popular tools which are used for Network stress testing. As these tools was developed for network testing, but now some people uses these tools for malicious purposes.
What is DOS Attack ?
Before proceeding , those who are not aware of the term DOS (Denial of Service Attack), this paragraph is for you :
- DOS (Denial of Service) is an attack performed on computer or network that reduces, restricts or prevents accessibility os system resources to legitimate users.
- In simple terms, Attacker floods the victim system with malicious traffic to overload its resources.
- DOS attack can do temporary or permanent damage to a website. I can also slows down network performance.
DDOS Attack Report
- Largest DDOS attack size is 127 Gigabits per second(Gbps) with speed of 50million packets per second.
- 167% increase in average attack peak size from 2015 to 2016.
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Powerfull DoS/DDoS Attack Tools
There are many tools available on internet today. You can also find some tools in Kali Linux. I am figuring out some common and effective tools.
Slowloris is the most effective tool for launching the dos attack. It works by opening multiple connections to the targeted web server and keeping them open as long as possible. It does this by continuously sending partial HTTP requests, none of which are ever completed. The attacked servers open more and connections open, waiting for each of the attack requests to be completed.
Due the simple yet elegant nature of this attack, it requires minimal bandwidth to implement and affects the target server’s web server only, with almost no side effects on other services and ports.
You can easily download this tool from github.
2. LOIC (Low Orbit Ion Canon)
The Low Orbit Ion Cannon (LOIC) may be the most popular DoS tool and has made its way into hacker lore. LOIC was initially developed by Praetox Technologies in C#, but was later released into the public domain.
LOIC basically turns computer’s network connection into a firehose of garbage requests, directed towards a target web server. On its own, one computer rarely generates enough TCP, UDP, or HTTP requests at once to overwhelm a web server—garbage requests can easily ignored while legit requests for web pages are responded to as normal.
This tool is available for Linux, Windows and Android as well.
GoldenEye is another popular tool which is used for security testing purposes. This tool is capable of bringing down victims web servers. This tool is written in python. GoldenEye is available on github. You can download it from here.
GoldenEye is an python app for SECURITY TESTING PURPOSES ONLY!
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4. HOIC (High Orbit Ion Canon)
The High Orbit Ion Cannon (HOIC) is a tool that could aid an unauthenticated, remote attacker in conducting distributed denial of service (DDoS) attacks. High Orbit Ion Canon or HOIC is developed by popular group Anonymous, a hacktivist collective, to replace the Low Orbit Ion Cannon (LOIC) tool. It functions by flooding target systems with junk HTTP GET and POST requests.
The tool can open up to 256 simultaneous attack sessions at once, bringing down a target system by sending a continuous stream of junk traffic until legitimate requests are no longer able to be processed. HOIC’s deceptive and variation techniques make it more difficult for traditional security tools and firewalls to pinpoint and block DDoS attacks.
The HOIC is a popular DDoS attack tool that is free to download and available for Windows, Mac, and Linux platforms.
XOIC is another nice DOS attacking tool. It performs a DOS attack on any server with an IP address, a user-selected port, and a user-selected protocol. Developers of XOIC claim that XOIC is more powerful than LOIC in many ways. Like LOIC, it comes with an easy-to-use GUI, so a beginner can easily use this tool to perform attacks on other websites or servers.
6. RUDY (R U Dead Yet ?)
R.U.D.Y. is a popular low and slow attack tool that is designed to crash a web server by submitting long form fields.
The attack is executed via a DoS tool which browses the target website and detects embedded web forms. Once the forms have been identified, R.U.D.Y. sends a legitimate HTTP POST request with an abnormally long ‘content-length’ header field and then t starts injecting the form with information, one byte-sized packet at a time.
7. TOR’s Hammer
ToR’s Hammer was designed to be run through the ToR network to anonymize the attack and limit mitigation. The problem with this strategy is that the ToR network tends to be very slow, thereby limiting the rate at which the packets can be sent and thereby limiting the effectiveness of this tool.
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This DDoS tool (built right into Kali) is different from most DoS tools in that it doesn’t require huge amounts of bandwidth and can be conducted with a single system. It attacks vulnerabilities in SSL to bring down the server. You can download it from THC, but if you are using Kali, you already have it.
PyLoris is said to be a testing tool for servers. It can be used to perform DOS attacks on a service. This tool can utilize SOCKS proxies and SSL connections to perform a DOS attack on a server. It can target various protocols, including HTTP, FTP, SMTP, IMAP, and Telnet. The latest version of the tool comes with a simple and easy-to-use GUI. Unlike other traditional DOS attacking tools, this tool directly hits the service.
10. HULK (Http Unbearable Load King)
HULK is another nice DOS attacking tool that generates a unique request for each and every generated request to obfuscated traffic at a web server. This tool uses many other techniques to avoid attack detection via known patterns.
Dos/DDos Attack Tools For Android
Low Orbit Ion Cannon is a simple application that allows users to send UDP, HTTP, or TCP data packets to any IP address. LOIC can help users with testing server data flow by emulating controlled traffic flow. Since LOIC supports all three socket protocols (UDP, TCP, and HTTP), LOIC could thus be used with any type of server.
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Akshay Sharma is a Cyber Security Analyst. He is a CCNA certified and owner of TheHackerStuff.