Linux Online - Application: Port Scan Attack Detector

Application: Port Scan Attack Detector

Port Scan Attack Detector (psad) is a program written in Perl that is designed to work with Linux firewalling code (iptables in the 2.4.x kernels, and ipchains in the 2.2.x kernels) to detect port scans. It features a set of highly configurable danger thresholds (with sensible defaults provided), verbose alert messages that include the source, destination, scanned port range, begin and end times, TCP flags and corresponding nmap options (Linux 2.4.x kernels only), email alerting, and automatic blocking of offending IP addresses via dynamic configuration of ipchains/iptables firewall rulesets. In addition, for the 2.4.x kernels psad incorporates many of the TCP signatures included in Snort to detect highly suspect scans for various backdoor programs (e.g. EvilFTP, GirlFriend, SubSeven), DDoS tools (mstream, shaft), and advanced port scans (syn, fin, Xmas) which are easily leveraged against a machine via nmap.

Homepage	http://www.cipherdyne.com/psad/
Download	http://www.cipherdyne.com/psad/download/
Author	Not Shown <mbr_AT_cipherdyne_DOT_C.O.M>
Version	0.9.0
Licence	GNU General Public License (GPL)
Source	Yes
Environment	Console
Status	Development

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