For those who have physically updated their browser within the last week, think back about how you did it. Did you search for the upgrade on your own, or did you acquire an update following an alert stating you need to pick-up a “critical update”?
If you had the alert and are living in the UK, then chances are you fell for the most recent malware delivery campaign that has been started prior to New Year’s Eve. Chances are you went to some sort of free movie streaming or media site, and a harmful ad redirected you to a different website.
“The website, which is hosted in the Ukraine, uses a dual hybrid Web server setup by Apache and Nginx, with the latter identifying the victim’s browser and performing a redirect,” a Symantec employee explained in a recent post.
For those who have downloaded and ran the “updated browser”, you should consider that your computer has been been compromised by an information-stealing Shylock Trojan, and you need to utilize an AV solution to remove it. If you don’t have one readily available, please follow this guide to download, update and scan using Malwarebytes.