Zeek is a powerful network analysis framework that is much different from the typical IDS you may know. While focusing on network security monitoring, Zeek provides a comprehensive platform for more general network traffic analysis as well. Well grounded in more than 15 years of research, Zeek has successfully bridged the traditional gap between academia and operations since its inception. Today, it is relied upon operationally in particular by many scientific environments for securing their cyber-infrastructure. Zeek’s user community includes major universities, research labs, supercomputing centers, and open-science communities. This is the source code release.

https://packetstormsecurity.com/files/172493/zeek-5.0.9.tar.gz

Nmap is a utility for port scanning large networks, although it works fine for single hosts. Sometimes you need speed, other times you may need stealth. In some cases, bypassing firewalls may be required. Not to mention the fact that you may want to scan different protocols (UDP, TCP, ICMP, etc.). Nmap supports Vanilla TCP connect() scanning, TCP SYN (half open) scanning, TCP FIN, Xmas, or NULL (stealth) scanning, TCP ftp proxy (bounce attack) scanning, SYN/FIN scanning using IP fragments (bypasses some packet filters), TCP ACK and Window scanning, UDP raw ICMP port unreachable scanning, ICMP scanning (ping-sweep), TCP Ping scanning, Direct (non portmapper) RPC scanning, Remote OS Identification by TCP/IP Fingerprinting, and Reverse-ident scanning. Nmap also supports a number of performance and reliability features such as dynamic delay time calculations, packet timeout and retransmission, parallel port scanning, detection of down hosts via parallel pings.

https://packetstormsecurity.com/files/172494/nmap-7.94.tgz

AIDE (Advanced Intrusion Detection Environment) is a free replacement for Tripwire™. It generates a database that can be used to check the integrity of files on server. It uses regular expressions for determining which files get added to the database. You can use several message digest algorithms to ensure that the files have not been tampered with.

https://packetstormsecurity.com/files/172425/aide-0.18.3.tar.gz

This python script is a tool for fuzzing Fortigate 7.

https://packetstormsecurity.com/files/172318/suff-v0.1.py.txt

Samhain is a file system integrity checker that can be used as a client/server application for centralized monitoring of networked hosts. Databases and configuration files can be stored on the server. Databases, logs, and config files can be signed for tamper resistance. In addition to forwarding reports to the log server via authenticated TCP/IP connections, several other logging facilities (e-mail, console, and syslog) are available. Tested on Linux, AIX, HP-UX, Unixware, Sun and Solaris.

https://packetstormsecurity.com/files/172313/samhain-4.4.10.tar.gz

Suricata is a network intrusion detection and prevention engine developed by the Open Information Security Foundation and its supporting vendors. The engine is multi-threaded and has native IPv6 support. It’s capable of loading existing Snort rules and signatures and supports the Barnyard and Barnyard2 tools.

https://packetstormsecurity.com/files/172254/suricata-6.0.12.tar.gz

Clam AntiVirus is an anti-virus toolkit for Unix. The main purpose of this software is the integration with mail servers (attachment scanning). The package provides a flexible and scalable multi-threaded daemon, a command-line scanner, and a tool for automatic updating via Internet. The programs are based on a shared library distributed with the Clam AntiVirus package, which you can use in your own software. This is the LTS source code release.

https://packetstormsecurity.com/files/172094/clamav-1.1.0.tar.gz

MIMEDefang is a flexible MIME email scanner designed to protect Windows clients from viruses. Includes the ability to do many other kinds of mail processing, such as replacing parts of messages with URLs. It can alter or delete various parts of a MIME message according to a very flexible configuration file. It can also bounce messages with unacceptable attachments. MIMEDefang works with the Sendmail 8.11 and newer “Milter” API, which makes it more flexible and efficient than procmail-based approaches.

https://packetstormsecurity.com/files/172091/mimedefang-3.4.1.tar.gz

MIMEDefang is a flexible MIME email scanner designed to protect Windows clients from viruses. Includes the ability to do many other kinds of mail processing, such as replacing parts of messages with URLs. It can alter or delete various parts of a MIME message according to a very flexible configuration file. It can also bounce messages with unacceptable attachments. MIMEDefang works with the Sendmail 8.11 and newer “Milter” API, which makes it more flexible and efficient than procmail-based approaches.

https://packetstormsecurity.com/files/172048/mimedefang-3.4.tar.gz

This python script is a slow brute forcing utility to check passwords against FortiGate appliances. Check the homepage link for more information on how this was used to slowly bypass brute force protections.

https://packetstormsecurity.com/files/171963/bfg.py.txt

Google’s American Fuzzy Lop is a brute-force fuzzer coupled with an exceedingly simple but rock-solid instrumentation-guided genetic algorithm. afl++ is a superior fork to Google’s afl. It has more speed, more and better mutations, more and better instrumentation, custom module support, etc.

https://packetstormsecurity.com/files/171907/AFLplusplus-4.06c.tar.gz

I2P is an anonymizing network, offering a simple layer that identity-sensitive applications can use to securely communicate. All data is wrapped with several layers of encryption, and the network is both distributed and dynamic, with no trusted parties. This is the source code release version.

https://packetstormsecurity.com/files/171885/i2psource_2.2.1.tar.bz2

Suricata is a network intrusion detection and prevention engine developed by the Open Information Security Foundation and its supporting vendors. The engine is multi-threaded and has native IPv6 support. It’s capable of loading existing Snort rules and signatures and supports the Barnyard and Barnyard2 tools.

https://packetstormsecurity.com/files/171886/suricata-6.0.11.tar.gz

Wireshark is a GTK±based network protocol analyzer that lets you capture and interactively browse the contents of network frames. The goal of the project is to create a commercial-quality analyzer for Unix and Win32 and to give Wireshark features that are missing from closed-source sniffers. This is the source code release.

https://packetstormsecurity.com/files/171881/wireshark-4.0.5.tar.xz

Faraday is a tool that introduces a new concept called IPE, or Integrated Penetration-Test Environment. It is a multiuser penetration test IDE designed for distribution, indexation and analysis of the generated data during the process of a security audit. The main purpose of Faraday is to re-use the available tools in the community to take advantage of them in a multiuser way.

https://packetstormsecurity.com/files/171880/faraday-4.3.5.tar.gz

Zeek is a powerful network analysis framework that is much different from the typical IDS you may know. While focusing on network security monitoring, Zeek provides a comprehensive platform for more general network traffic analysis as well. Well grounded in more than 15 years of research, Zeek has successfully bridged the traditional gap between academia and operations since its inception. Today, it is relied upon operationally in particular by many scientific environments for securing their cyber-infrastructure. Zeek’s user community includes major universities, research labs, supercomputing centers, and open-science communities. This is the source code release.

https://packetstormsecurity.com/files/171840/zeek-5.0.8.tar.gz

Faraday is a tool that introduces a new concept called IPE, or Integrated Penetration-Test Environment. It is a multiuser penetration test IDE designed for distribution, indexation and analysis of the generated data during the process of a security audit. The main purpose of Faraday is to re-use the available tools in the community to take advantage of them in a multiuser way.

https://packetstormsecurity.com/files/171833/faraday-4.3.4.tar.gz

tcpdump allows you to dump the traffic on a network. It can be used to print out the headers and/or contents of packets on a network interface that matches a given expression. You can use this tool to track down network problems, to detect many attacks, or to monitor the network activities.

https://packetstormsecurity.com/files/171800/tcpdump-4.99.4.tar.gz

AIDE (Advanced Intrusion Detection Environment) is a free replacement for Tripwire™. It generates a database that can be used to check the integrity of files on server. It uses regular expressions for determining which files get added to the database. You can use several message digest algorithms to ensure that the files have not been tampered with.

https://packetstormsecurity.com/files/171798/aide-0.18.2.tar.gz

GNUnet is a peer-to-peer framework with focus on providing security. All peer-to-peer messages in the network are confidential and authenticated. The framework provides a transport abstraction layer and can currently encapsulate the network traffic in UDP (IPv4 and IPv6), TCP (IPv4 and IPv6), HTTP, or SMTP messages. GNUnet supports accounting to provide contributing nodes with better service. The primary service build on top of the framework is anonymous file sharing.

https://packetstormsecurity.com/files/171669/gnunet-0.19.4.tar.gz