Is your PC haunted by Ghost Click?

The FBI just took down a criminal botnet that hijacked more 4 million PCs worldwide. Is yours among them?

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First, you’ll need to determine the IP address of your DNS server. And yes, it affects Macs as well as Windows machines, so Apple fanboys should pay heed as well. Per TrendMicro’s Rik Ferguson:

On a PC, open the Start menu by clicking the Start button or the Windows icon in the lower left of your screen, in the  Search box type “cmd” and hit return (for Windows 95 users, select “Start“, then “Run“).This should open a black window with white text. In this window type “ipconfig /all” and hit return. Look for the entry that reads “DNS Servers” and note down the numeric addresses that are listed there.

On a Mac …click on the Apple icon in the top left of your screen and select “System Preferences“, from the Preferences panel select the “Network” icon. Once this window opens, select the currently active network connection on the left column and over on the right select the DNS tab. note down the addresses of the DNS servers that your computer is configured to use.

You’ll then need to plug that IP address into the FBI’s online database of compromised DNS settings to find out if yours is among them. If it was (unlucky you) the Feds would like you to fill out a victim’s report. You’ll then need to do a virus scan to find and destroy the malware, then contact your ISP to restore the correct DNS settings.

You can do a quick (and free) online virus scan at Trend Micro’s HouseCall service or PC Pitstop.

For my money, keeping cyber criminals out of my PC (and my life) is more important than who’s running for president or coaching Penn State. As for Asteroid Armageddon? Well, maybe not.

Got a question about social media? TY4NS blogger Dan Tynan may have the answer (and if not, he’ll make something up). Visit his snarky, occasionally NSFW blog eSarcasm or follow him on Twitter: @tynan_on_tech. For the latest IT news, analysis and how-to’s, follow ITworld on Twitter and Facebook.

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