Open Source Perl Security Software

The Anti-Spam SMTP Proxy (ASSP) Server project aims to create an open source platform-independent SMTP Proxy server which implements auto-whitelists, self learning Hidden-Markov-Model and/or Bayesian, Greylisting, DNSBL, DNSWL, URIBL, SPF, SRS, Backscatter, Virus scanning, attachment blocking, Senderbase and multiple other filter methods. Click 'Files' to download the professional version 2.8.1 build 24261. A linux(ubuntu 20.04 LTS) and a freeBSD 12.2 based ready to run OVA of ASSP V2 are also available for download. NOTICE: V1 development has been stopped at the end of 2014 (1.10.1 build 16060). Possibly there will be done some bugfixing in future. Please upgrade to V2, which is and will be actively maintained.

Network Security Toolkit (NST) is a bootable ISO image (Live USB Flash Drive) based on Fedora 42 providing easy access to best-of-breed Open Source Network Security Applications and should run on most x86_64 systems. The main intent of developing this toolkit was to provide the security professional and network administrator with a comprehensive set of Open Source Network Security Tools. The majority of tools published in the article: Top 125 Security Tools by INSECURE.ORG are available in the toolkit. An advanced Web User Interface (WUI) is provided for system/network administration, navigation, automation, network monitoring, host geolocation, network analysis and configuration of many network and security applications found within the NST distribution. In the virtual world, NST can be used as a network security analysis, validation and monitoring tool on enterprise virtual servers hosting virtual machines.

Open source DKIM library, MTA filter implementation and associated tools.

MailCleaner Open Source Edition is now discontinued but will continue under the spamtagger project https://github.com/SpamTagger [antispam] MailCleaner is an anti-spam / anti-virus filter SMTP gateway with user and admin web interfaces, quarantine, multi-domains, multi-templates, multi-languages. Using Bayes, RBLs, Spamassassin, MailScanner, ClamAV. Based on Debian. Enterprise ready. MailCleaner is an anti spam gateway installed between your mail infrastructure and the Internet. It includes a complete GNU/Linux OS and a graphical web interface for user and administrative access. It comes in the form of virtual machine templates.. - fully compatible with any SMTP mail server (Exchange, Zimbra, O365,...)

A general purpose set of tools, C library and CPAN modules to help DomainKeys developers. The goal is that these tools and library can be easily adopted by all MTAs, LDAs and possibly MUAs. This project is about conforming to the DomainKeys standard,

NetSPOC is a Network Security POlicy Compiler. A tool for simplified security management of networks with multiple security domains. NetSPOC takes a description of toplogogy, services and rules and generates access lists for multiple packet filters.

This is an open source implementation of the draft DMARC specification.

Perl script to close a TCP connection under Linux, whatever its state is (half-open, established, waiting or closing state).

AIM Sniff is a network sniffer specifically designed to pick up messages transmitted using the AIM or MSN clients and their derivatives. All information can be sent to STDOUT or a MySQL DB.

AMaViS is a script that interfaces a mail transport agent (MTA) with virus scanners.

Use of Michael Rabin's Information Dispersal Algorithm to provide secure, dispersed storage in a networked environment. For full download, please get both Math-FastGF2 and Crypt-IDA releases under the files link. See project wiki for more information.

PeMaR is a gateway, that relays outgoing email to anonymous remailer networks and receives and decodes anonymous mixminion messages. It allows the use of any email client to send and receive anonymous email. An extension is available for Thunderbird.

A privacy and security aware mailing list manager, perfect for allowing closed groups to interact on the Internet without interference from outsiders and former insiders.

Ircproxy is transparent IRC content-filtering application. It may be used whenever there is a need of monitoring IRC connections.It may be used to deny specific connections or to behold suspicious IRC traffic.

Working on a rewrite. Stay tuned.

A.I. security app. Development ceased.

Ariesbot, is an ircbot, which will be able of doing basic bot functions such as op/deop/kick/ban/moderate. Plus being able to Wu-Ftpd scans, cgi/php scans port scans, subnet scans and scan for vuln version of apache to nosejob.c.

Cisco Torch mass scanning, application layer fingerprinting, and exploitation tool to discover and attack remote Cisco hosts running Telnet, SSH, Web, TFTP, NTP and SNMP services. Useful in auditing large networks for misconfigured/un-updated Ciscos.

CommCA - A Community-driven Certificate Authority for distribution of free X.509 digital certificates for personal email and server use.

DSFS (Distributed Secure File System) is a server-less, redundant, secure, infinite, non-revocable filesystem.

Two utilities that use the bing and google search engines to harvest email addresses and profile links on linkedin.com

This small simple secure mail interface allows users to create messages, encrypt them with a password using the Enigma cipher and then send them to anyone with an email account.

An alternative Identification system that is a replacement for Microsoft's Passport and the Liberty Alliance. Its a simple architecture that is setup so anyone can run a server and thereby have control over their online identification.

IRC Defender is a modular perl program for protecting your IRC network against virus drones, general troublemakers, ban evasion, and attacks.

MailScanner is an email virus scanner, vulnerability protector and spam tagger. It is written in Perl for any Unix/Linux system. It supports the Postfix, Sendmail, Exim and ZMailer MTAs, and any combination of 17 different virus scanners.