CallerIP

From Visualware:

CallerIP monitors activity on open ports on your system, which are often not protected by firewall's, and identifies backdoor's that could allow harmful Trojan's to steal your information. Connections are monitored in real time and identified by country, a click on an IP address shows the city and country location on a world map. Worldwide WHOIS lookups show domain and network registration contact information, including abuse reporting information. Connections to your system are provided in real time, including the connection time, remote and local IP address, country of origin, remote and local ports being accessed. For Windows XP systems, the process ID is also identified, which helps determine if it is a legitimate process or may be harmful. A simple click on an IP address shows you where the connection originates on a global map, along with domain and network registration information. CallerIP actively scans the ports on your system and alerts you to any backdoor's or active HTTP/FTP/SMTP services, which could allow a harmful Trojan or enable unauthorized access to your system.

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