The Internet is abuzz about the DNS Changer computer malware that is expected to leave some without Web access on Monday.

The nasty bug came to light last year when it was reported that international cyber criminals were taking control of computers and also diabling anti-virus updates.

The problem was so concerning that the FBI responded by running a computer intervention. (Click here to read more from the FBI on the DNSChanger malware.)

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It is estimated that about 277,000 computers worldwide — 64,000 of them in the United States — may still be infected with the malware, and on July 9 the FBI is disabling its stopgap measure. So for some, there will be no Internet access after Monday.

Users will find blank screens on their Web browsers Monday if their machine is infected and not fixed, The Christian Science Monitor reports:

"Unfortunately, most of those that still have infected machines are going to find out the hard way on Monday – they'll be cut off – and have to take their machines to a local computer store to get it cleaned up," says Rod Rasmussen, president of Identity Internet. "The biggest danger for most people isn't going to be the DNS Changer itself, but all the other things that got installed."

To find out if your computer will be still be connected on Monday, visit FBI-approved www.dns-ok.us for a simple online test that will tell you if you're good to go.