What’s Your Computer Connecting To?
A security conscious buddy of mine is an advocate of the Sysinternals freeware utilities. For those of you who don’t know, Mark Russinovich, one of the Sysinternals co founders, was the guy that discovered and exposed the Sony BMG root kit back in 2005. In other words, the crew at Sysinternals knew their $h*t. Microsoft purchased the company later in 2006.
Anyway, the reason I’m telling you all this is because one of the many excellent utilities Sysinternals released is TCPView. TCPView provides a semi-detailed list of all the TCP/UDP connections based on: established, listening, and time_wait. In addition, TCPView will let you know where the connections are coming from, and where they’re going. Click the image on the right to see the full sized version in a new window.
Several of the firewalls on the market today provide a “network monitor” that offer a little more detail than Sysinternal’s TCPView, but you might be surprised to see what your firewall isn’t showing you.
To download and read more about Sysinternal’s TCPView, click here to visit the official page.
This free utility is definitely going into my permanent arsenal or Windows tools. Are you aware of any free tools that provide similar features? Take the time to share your suggestions in the comments, I’d love to read about ‘em.
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