Have you seen this? You are working on your computer and everything seems fine, when all of the sudden – POP! – a pop-up window alerts you that that your PC is infected with a virus and you must “click here” or “remove all” to run a scan or install and upgrade antivirus software. Your first reaction is to panic and click the warning to run the antivirus. That is what the crooks are counting on. This is a common scareware tactic. Hackers use social engineering strategies to get you to click and download a virus or other form of malware.
This technique is not new, it’s been around for a long time; in fact, back in 2009 FBI issued a warning about anti-virus scareware on their website (now archived): “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”…” (FBI National Press Office, Washington, D.C.)
Here is what to do right away if you see a fake anti-virus pop-up
- The safest thing to not touch the pop-up window altogether, but rather close your entire browser: do not click on the X in the upper corner, do not click on “Close” or “Cancel” options in the pop-up window. Clicking on anything on the page or pop-up will trigger a virus download.If you are unable to make it work, here is what you can also try: start up your task manager (hold Control + Alt + Delete on a PC and Command + Option + Esc to “Force Quit” on a Mac) and close the web browser or application where it appeared.
- Next, notify your IT department (us!) that this has happened to double-check with a legitimate scan if your computer was infected.