Intrusion Detection Systems: Intrusion detection tools are one of the most important part of any security arrangement. They allow you to detect those threats that are potentially dangerous for your system.
3. Angry IP Scanner
Encryption Tools: In an age where more and more governments are being found spying on their own citizens, encryption is the word of the day. These tools allow you to encrypt your data so that even if someone does get through, they can’t get to the data easily.
Password Crackers: The name is pretty self explanatory in this case. These tools help you recover passwords from the data that a computer system is storing or transmitting over a network.
8. THC Hydra
9. John The Ripper
10. Aircrack - Aircrack is 802.11 WEP and WPA-PSK keys cracking program.
11. Cain and Abel
Packet Crafting: Packet crafting is the technique through which an attacker finds vulnerabilities or entry points within your firewall. These tools help you achieve that more easily.
Traffic Monitoring: These are tools that let you monitor what websites your employees or children are monitoring.
Packet Sniffers: These are tools that can allow you to capture and visualise the traffic that is coming on your website.
Vulnerability Exploitation: These are the tools that you would use in order to gain access to various places.
4. Social Engineer Toolkit
4. Secunia PSI
Web Vulnerability Scanners: While vulnerability scanners are meant for your system, web vulnerability scanners assess the vulnerability of web applications. The identify the security vulnerabilities that your app may have through various tests.
1. Burp Suite
Web Proxies: Proxies were originally created in order to add encapsulation to distributed systems. The client contacts a proxy server in order to request an item that exists on your server.
Rootkit Detectors: This tool is a file and directory integrity checker. It verifies if a file is trustworthy and informs the user if found otherwise.
1. AIDE (Advanced Intrusion Detection Environment)
Firewalls: You obviously know what a Firewall is. These monitor and control the traffic in your network, whether incoming or outgoing. They are essential security tools that are used by the most novice to the most advanced users.
2. PF: OpenBSD Packet Filter
Fuzzers: The concept of fuzzing is usually put to use in order to test the security vulnerabilities of computer systems or in the software that runs on them.
Forensics: This refers to tools that are used for computer forensic. They are used in order to find evidence that is existing in computer systems.
1. Sleuth Kit
Debuggers: These are tools that are used in order to write exploits, reverse engineer binary files and to analyse malware.
2. Immunity Debugger
Hacking Operating Systems: These are operating systems that have been designed specifically for hackers. These distros are preloaded with tools that a hacker needs etc.
1. Backtrack 5r3
2. Kali Linux
5. BackBox Linux
7. Matriux Krypton
10. Samurai Web Testing Framework
12. CAINE (Computer Aided Investigative Environment)
Other Hacking Tools: There are also other miscellaneous hacking tools that are often used by hackers. They can’t be put into a particular category, but they are still quite useful.