Computer Virus Strikes Facebook Users-Blair Simmons

A new version of an old computer virus is making the rounds again on social networking sites.

This time, it's hitting Facebook users and locking up their entire PC system.

The virus has the ability to get hold of every file on your computer, from y our email address book to your banking information, all by making one single click.

It's called the Koobface virus, and Glenn Clute says it's been circulating since 2008.

This is actually the 28th variant of the same virus, and it's extremely infectious.

Computer specialist Glenn Clute says, "It's almost like anti-virus programs look at it as like a program that's installing - so the anti-virus programs seem to let it go and from that point on it takes over the system and can even turn off some anti-virus and disable them."

Since it's been around, Clute sees up to a dozen cases of the virus a week, like John Clampitt's computer.

Clampitt says, "I've had a lot of little viruses over the years, but never anything quite like this. It shut my entire system down.'

Here's how it happened to Clampitt- a friend sent him a video on Facebook that he just couldn't resist checking out.

Clampitt says, "I received an email that had a "hilarious video" that i was a part of - so I couldn't help the temptation."

But when he clicked on it, it wouldn't open, and locked up his entire system.

Clampitt says, "The most scary was the fear of having lost everything in my computer because I've never had a major virus... very alarming."

Clute says once you've clicked on the fatal link, the virus basically turns your computer into a zombie... infecting all of your files, recording every keystroke, and even gaining remote access to your computer.

So it infects your files, then spreads to your Facebook friends, filling their inboxes with the same enticing video message.