Daily Freeware Reviews

CurrPorts displays the list of all currently opened TCP/IP and UDP ports on your local computer. For each port in the list, information about the process that opened the port is also displayed, including the process name, full path of the process, version information of the process (product name, file description, and so on), the time that the process was created, and the user that created it.

In addition, CurrPorts allows you to close unwanted TCP connections, kill the process that opened the ports, and save the TCP/UDP ports information to HTML file , XML file, or to tab-delimited text file.

CurrPorts also automatically mark with pink color suspicious TCP/UDP ports owned by unidentified applications (Applications without version information and icons)

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Packetyzer provides a Windows user interface for the well known Ethereal packet capture and dissection library. Ethereal is used by network professionals around the world for troubleshooting, analysis, software and protocol development, and education. It has all of the standard features expected in a protocol analyzer, and several features not otherwise available. Network Chemistry has taken advantage of its open source license to add a Windows front end to extend its use.

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Seconfig XP is able configure Windows not to use TCP/IP as transport protocol for NetBIOS, SMB and RPC, thus leaving TCP/UDP ports 135, 137-139 and 445 (the most exploited Windows networking weak point) closed.

This tool works only with Windows registry (it doesn’t install any files/drivers etc.).

Seconfig XP can also configure other hidden security related Windows TCP/IP settings and disable some insecure and mostly unneeded services.
For additional safety Seconfig XP backs up every changed setting, allowing user to restore all settings to their original values.

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Removing rootkits without compromising system integrity is particularly challenging and needs to be done with care. Our free software, Sophos Anti-Rootkit, finds and removes any rootkit that is hidden on your computer.

What is a rootkit? The term rootkit is used to define a Trojan (or technology) used to hide the presence of a malicious object (process, file, registry key, network port) from the computer user or administrator. Easily detect and remove rootkits As part of its complete protection of endpoint computers, Sophos Anti-Virus detects rootkits and prevents them being installed on any of your desktops, laptops and servers.

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IPCop Firewall is a Linux firewall distribution geared towards home and SOHO (Small Office/Home Office) users. The IPCop interface is very user-friendly and task-based. IPCop offers the critical functionality of an expensive network appliance using stock, or even obsolete, hardware and OpenSource Software.

IPCop Firewall basically sits “in between” your Internet connection (dial-up modem, cable-modem, DSL, etc) and works directs traffic using a set of rules for the TCP/IP traffic that underlies all Internet activities. The default rules, ideal for most users, are essentially simple in nature. They allow you to “surf” to the outside world and visit web-sites, FTP, email and so forth. And as you go about your tasks on the Internet, IPCop allows return traffic from those tasks, that you requested, to pass through. If, however, some random TCP/IP traffic comes in, requesting information from your computer, and that traffic is not in response to your requests, IPCop Firewall refuses to respond, and logs that attempt. Thus, you are allowed to go about your normal business, but when the bad guys try to come after you, they are stopped cold, because they are not responding to your requests. Think of IPCop Firewall as your friendly traffic cop down on the corner, making sure that things travel smoothly, and enforcing good rules on your Internet traffic.

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Nmap (“Network Mapper”) is a free open source utility for network exploration or security auditing. It was designed to rapidly scan large networks, although it works fine against single hosts. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics.

Nmap runs on most types of computers and both console and graphical versions are available. Nmap is free and open source.

Nmap is …

• Flexible: Supports dozens of advanced techniques for mapping out networks filled with IP filters, firewalls, routers, and other obstacles. This includes many port scanning mechanisms (both TCP & UDP), OS detection, version detection, ping sweeps, and more.

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