Being forewarned is being forearmed.
There is currently a rogue antivirus program attacking computers all over the internet. It makes a popup that appears to come from your task bar alerting you that your computer is under attack, to “click here” to download a program to remove the attack.
DO NOT CLICK ON IT!!1!
Instead, disconnect your internet connection immediately and run Malwarebytes.
Then search your hard drive for a file called IS2010.exe. Delete it.
Look at your desktop to see if there is an icon for Internet Security 2010. If there is, delete it. DO NOT RUN UNINSTALL AS IT RECOMMENDS.
Then reboot your computer and — if you are as paranoid as me — run Malwarebytes again. Don’t forget to empty your recycle bin before you reboot.
BleepingComputer has the dope on removing this threat once it has installed itself on your computer.
The FBI put out a warning on December 11, 2009:
The message may display what appears to be a real-time, anti-virus scan of your hard drive. The scareware will show a list of reputable software icons; however, you can’t click a link to go to the real site to review or see recommendations. Cyber criminals use botnets—collections of compromised computers—to push the software, and advertisements on websites deliver it. This is known as malicious advertising or “malvertising.”