Feds worried thousands might lose the Internet

The FBI is worried that over 350,000 computers might lose access to the Internet on July 9th, all because a Trojan, named DNSChanger, tried to disrupt how Internet-connected computers find each other.

DNSChanger belongs to a category of Internet threats known as "DNS Malware," which by design try to reroute or otherwise manipulate Internet traffic for criminal purposes.

Domain Name System (DNS) is the global directory that allows the use of friendly names as Web addresses. DNSChanger, however, causes infected PCs to query servers that return bogus information, diverting hapless Web surfers to phoney Web sites to be victimized.

The criminals behind the scam were caught, but not before millions of computers were infected. In order to prevent a widespread loss of access to the Internet, the FBI evidently obtained a court order last November authorizing the Internet Systems Consortium (ISC) to deploy and maintain temporary clean DNS servers.

These servers were supposed to be decommissioned in March, 2012, but the deadline was extended because DNS query traffic indicates that many PC are still infected.

The new cutoff date of July 9th is fast approaching, so the FBI has created a special section on FBI.gov to raise awareness about DNS Malware. There, you can read the agency's official release on DNSChanger and get  information about how to check your PC to see if it's infected.

An organization called the DNS Changer Working Group (DCWG) also has useful links and information.

Stories like this have a tendency to be sensationalized, but there is no reason to panic. The best course of action is to check your PC to see if it has been affected. A site, called DNS-OK.us, makes the detection process especially easy.

If your PC is a victim of DNSChanger, free removal tools are listed on the DCWG's website, and if you want to help the FBI's investigation of DNS Malware, you can let the agency know you were affected by submitting a report on FBI.gov.

Most up-to-date anti-virus software is DNSChanger-aware, but it doesn't hurt to check on all your PCs. Again, to do so, simply visit DNS-OK.us.

Jing is the thing for video screen captures

Let's say you're doing some surfing online, and you need to grab an image of a web page. There are many ways to do this, ranging from a simple "print screen" to the Snipping Tool built into Windows 7.

Still, the process of copying, cropping, and/or resizing a screen grab can be tedious, especially if you need to share the result. It's not surprising, therefore, that someone came up with a better way.

Jing by TechSmith is a lightweight tool, available for a Mac or a PC, that lets you select an area of your screen and record it as a still or a video. The program also offers several sharing options.  

Online tutorials are available, if you need them, but the program is incredibly easy to use. With one click, you can even post your image to Facebook, Twitter or Screencast.com.

Video captures are limited to 5 minutes in length, and the free version of Screencast.com only affords 2GB of storage, 2GB of monthly bandwidth, and four privacy options.

Nevertheless, for occasional use, the free Jing/Screencast combo a must-have.  For more information, visit TechSmith.com.