Port Scan Attack Detector

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Port Scan Attack Detector

http://www.cipherdyne.com/psad
Detects port scans

Port Scan Attack Detector (psad) works with the Linux kernel firewalling code (iptables in the 2.4.x kernels, and ipchains in the 2.2.x kernels) to detect port scans. It has 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. For the 2.4.x kernels psad incorporates many of the TCP signatures included in Snort to detect suspect scans for various backdoor programs (e.g. EvilFTP, GirlFriend, SubSeven), DDoS tools (mstream, shaft), and advanced port scans (syn, fin, Xmas) can be leveraged against a machine via nmap.





Licensing

License

Verified by

Verified on

Notes

Verified by

Janet Casey

Verified on

2 May 2002




Leaders and contributors

Contact(s)Role
Michael Rash Maintainer
See the CREDITS file in the distribution for a complete list Contributor


Resources and communication

AudienceResource typeURI
Bug Tracking,Developer,SupportE-mailmailto:mbr@cipherdyne.com
DeveloperVCS Repository Webviewhttp://www.cipherdyne.com/cgi/viewcvs.cgi/psad/


Software prerequisites




Entry




















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