DoS (Denial of Service) attacks refer to intentionally exploiting vulnerabilities in network protocols or directly depleting the resources of the target object through brute force methods. The purpose of the attack is to disrupt the normal provision of services or access to resources of the target computer or network, leading to the cessation of response or even crashing of the target system. However, with the increasing number of free DDoS tools on the internet, the occurrence of DoS attacks is also gradually increasing. The following introduces several commonly used DoS attack tools by hackers.
Special Note: For attack and defense exercises and educational testing purposes only, illegal use is prohibited#
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- LOIC (Low Orbit Ion Cannon)
LOIC (Low Orbit Ion Cannon) is a well-known DoS attack tool. In the past few years, hacker groups like Anonymous have used it to launch network attacks on many large companies.
The use of this tool is relatively simple, even beginners can use it. It launches DoS attacks by simulating multiple users simultaneously sending UDP, TCP, or HTTP requests to the target server. You only need to know the IP address or URL of the target server, and let this tool handle the rest. This method will deplete the server's resources, causing service interruption or even crashing. However, it should be noted that using this tool for unauthorized attacks is illegal and violates network security laws and regulations. We encourage users to comply with laws and ethical norms to ensure the security and stability of the network.
Official website to download LOIC: http://sourceforge.net/projects/loic/
- XOIC
XOIC is another popular DoS attack tool. It can execute DoS attacks on any server based on the user's choice of port and protocol. The developers of XOIC claim that it is more powerful in many aspects compared to the previously mentioned LOIC.
Generally, this tool has three attack modes. The first one is the test mode, which is very basic. The second one is the regular DoS attack mode. The last one is the DoS attack mode with HTTP/TCP/UDP/ICMP messages.
For small websites, XOIC is an effective DDoS tool. However, I want to emphasize that using this tool for unauthorized attacks is illegal and violates network security laws and regulations. Also, using DoS attack tools carries risks and may affect your own website server. Therefore, we strongly recommend users to comply with laws and ethical norms to ensure the security and stability of the network.
Download XOIC: http://sourceforge.net/projects/xoic/
- HULK (HTTP Unbearable Load King)
HULK (HTTP Unbearable Load King) is another well-known DoS attack tool that uses some other techniques to bypass attack detection. This tool includes a known user agent list and uses random requests for the attack.
When using HULK for an attack, it simulates a large number of random HTTP requests and sends a large amount of traffic to the target server, causing the server to become overwhelmed, leading to service interruption or even crashing. However, it needs to be clearly stated that using such tools for unauthorized attacks is illegal and violates network security laws and regulations. We strongly urge users to comply with laws and ethical norms to ensure the security and stability of the network. Please remember that it is the responsibility of each individual to maintain the health and stability of the network and not engage in any activities that may harm the network ecosystem.
Download HULK: https://packetstormsecurity.com/files/download/112856/hulk.zip
- DDOSIM-Layer
DDOSIM (Distributed Denial of Service Simulator) is another popular DoS attack tool. As the name suggests, it executes distributed denial of service (DDoS) attacks by simulating control over multiple zombie hosts. During the attack, all zombie hosts create complete TCP connections and send traffic to the target server.
The purpose of DDOSIM is to help security experts and network administrators evaluate their network architecture and response capabilities by simulating actual DDoS attacks. However, it also needs to be emphasized that using such tools for unauthorized attacks is illegal and will seriously affect the normal operation and stability of the network. To maintain the security and stability of the network, we encourage all users to follow laws and ethical guidelines and take active measures to protect the network from malicious attack threats.
This tool is written in C++ and runs on Linux systems.
The main features of DDOSIM are:
- Simulates attacks from multiple zombie hosts.
- Uses random IP addresses for the attack.
- Based on TCP connection attacks.
- Supports application layer DDoS attacks.
- Supports effective HTTP requests for DDoS attacks.
- Supports invalid HTTP requests for DDoS attacks (similar to direct current++ attacks).
- Supports SMTP DDoS attacks.
- Supports TCP flood connections and uses random ports.
Download DDOSIM: http://sourceforge.net/projects/ddosim/
- R-U-Dead-Yet
R-U-Dead-Yet is a tool for HTTP POST DoS (Denial of Service) attacks, which executes attacks by submitting POST requests with long form fields to the server. This tool provides an interactive console menu that allows users to select the target URL and choose which forms and fields will be used to execute the POST-based DoS attack.
Once again, it is emphasized that using such tools for unauthorized attacks is illegal and will seriously affect the stability and availability of the network. We strongly recommend users to comply with laws and ethical norms to ensure the security and stability of the network. The best way to protect the network from potential threats is to take proactive security measures, rather than using attack tools.
Download: https://code.google.com/p/r-u-dead-yet/
- Tor hammer
Tor hammer is a DoS testing tool written in Python. This tool has an additional advantage that it can execute attacks through the TOR anonymous network. You also mentioned that it is a very effective tool that can crash Apache and IIS servers within seconds.
However, I want to reiterate that using such tools for unauthorized attacks is illegal and violates network security laws and regulations. We strongly urge users to comply with laws and ethical norms to ensure the security and stability of the network. Additionally, the best way to protect the network from potential threats is to take proactive security measures, rather than using attack tools. Please remember that it is the responsibility of each individual to maintain the health and stability of the network and not engage in any activities that may harm the network ecosystem.
Download TOR Hummer: https://packetstormsecurity.com/files/download/98831/torshammer.tgz
- PyLoris
PyLoris is a server testing tool, but it can also be used to execute DoS attacks. This tool seems to have some advanced features that can leverage SOCKS proxies and SSL connections to execute DoS attacks. It also supports attacks on multiple protocols, including HTTP, FTP, SMTP, IMAP, and Telnet. You also mentioned that unlike traditional DoS attack tools, the latest version of PyLoris adds a user-friendly graphical user interface (GUI).
Once again, using such tools for unauthorized attacks is illegal and will seriously affect the stability and availability of the network. Regardless of whether there is a GUI interface, using tools for attacks is unethical and illegal. We strongly recommend users to comply with laws and ethical norms to ensure the security and stability of the network. If necessary, legitimate methods should be used to test and evaluate the security of servers, rather than using attack tools to disrupt the network ecosystem. The best way to protect the network from potential threats is to take proactive security measures.
Download PyLoris: http://sourceforge.net/projects/pyloris/
- OWASP DOS HTTP POST
OWASP DOS HTTP POST is a tool that can be used to test the defense capabilities of web servers and can also be used to execute DoS attacks.
However, I want to reiterate that using such tools for unauthorized attacks is illegal and violates network security laws and regulations. We strongly urge users to comply with laws and ethical norms to ensure the security and stability of the network. Additionally, the best way to protect the network from potential threats is to take proactive security measures, rather than using attack tools. Please remember that it is the responsibility of each individual to maintain the health and stability of the network and not engage in any activities that may harm the network ecosystem. If you need to test the security of your web server, it is recommended to use legitimate and authorized methods for evaluation, rather than using attack tools.
Download: https://code.google.com/p/owasp-dos-http-post/
- DAVOSET
DAVOSET is another good tool for executing DDoS attacks. The latest version of the tool adds support for cookies and many other features. You can download DAVOSET for free from Packetstormsecurity.
Download DavoSET: https://packetstormsecurity.com/files/download/123084/DAVOSET_v.1.1.3.rar
- GoldenEye HTTP Denial of Service Tool
GoldenEye is a Python testing development tool known as a DoS attack tool. However, I want to reiterate that using such tools for unauthorized attacks is illegal and violates network security laws and regulations.
DoS attacks are malicious actions that harm the stability and availability of the network, and can seriously affect the servers and networks under attack. We strongly urge users to comply with laws and ethical norms to ensure the security and stability of the network. GoldenEye or similar tools are widely regarded as hacking tools because they can be abused for malicious attacks. I encourage you to comply with laws and regulations and take proactive security measures to protect your systems and networks from potential threats.
Download: https://packetstormsecurity.com/files/download/120966/GoldenEye-master.zip
It is very important to clarify that the purpose of using computer and programming techniques is for learning and testing, not for illegal attacks or illegal activities. When writing and using code, we must comply with laws and regulations and obtain relevant authorization. If you have legitimate purposes and authorization, you can continue testing and using. However, if you violate laws and regulations or use them without authorization, you will bear the consequences yourself. Please be cautious, comply with legal provisions, and ensure the security of computers and networks.