INTRUSION DETECTION

AntiSniff Detects port sniffing on a network. Freeware. (http://www.atstake.com/)

Attacker Monitors your ports for suspicious behavior and notifies you when someone tries to connect to your computer through a Trojan. Freeware. (http://www.keir.net/)

BlackICE Defender Intrusion detection and a personal firewall. Demoware. (http://www.networkice.com/)

Jammer Monitors ports on your computer to detect attempted break-ins. Shareware. (http://www.agnitum.com/jammer)

McAfee Personal Firewall Secures your computer from hackers. Trialware. (http://www.mcafee.com)

Netmon Monitors your ports for suspicious behavior and detects the more common Trojan horses. Freeware. (http://members.tripod.com/circlet)

NukeNabber Monitors your computer ports to alert you when someone may be trying to access your computer using a Trojan horse. Freeware. (http://www.dynamsol.com/)

Port Blocker Blocks open ports on your computer to prevent them from being used by hackers or Trojan horses. Freeware. (No installation support.)

ProtectX Monitors your ports to detect and remove any Trojan horses that could be used to access your computer. Shareware. (http://www.archimedean.com/)

Rainbow Diamond Intrusion Detection Detects suspicious activity through your ports. Demoware. (http://www.brd.ie/)

SuperScan Port scanner that probes your computer to detect any open ports that could be vulnerable to a remote attack, such as through a Trojan horse. Freeware. (http://www.keir.net/)

ZoneAlarm Firewall that protects your computer from port scanners and remote access Trojans. Freeware. (http://www.zonelabs.com/)