If you came across any Facebook Message with an image file send by any of your Facebook friends, just avoid clicking it.
An ongoing Facebook spam campaign is spreading malware downloader among Facebook users by taking advantage of innocent-looking image file to infect computers.
If clicked, the file would eventually infect your PC with the nasty Ransomware, a family of malware that has quickly become one of the favorite tools among criminals due to its infecting capabilities.
Like a typical way to deliver malware infection, the site would push a popup, asking you to download and install a certain codec extension in Google Chrome in order to view the video. The malicious extension used two names, Ubo and One.
Ransomware is malware that locks your computer or encrypts your files. You can’t get the data back unless you pay a ransom, and even if you do, there’s no guarantee that you’ll get your data back.
After this sort of infection the only way to roll back in time is to restore your backups.
Article of Swati Khandelwal at http://thehackernews.com/2016/11/locky-ransomware-facebook.html
More about in Locky: the encryptor taking the world by storm – https://securelist.com/blog/research/74398/locky-the-encryptor-taking-the-world-by-storm/