Warning: If you receive a video files sent by someone (or even from your friends) on Facebook messenger — just don’t click on it.

Beware of Cryptocurrency Mining Virus Spreading Through Facebook Messenger

If you receive a video file (packed in zip archive) sent by someone (or your friends) on your Facebook messenger — just don’t click on it.
Researchers from security firm Trend Micro are warning users of a new cryptocurrency mining bot which is spreading through Facebook Messenger and targeting Google Chrome desktop users to take advantage of the recent surge in cryptocurrency prices.
Dubbed Digmine, the Monero-cryptocurrency mining bot disguises as a non-embedded video file, under the name video_xxxx.zip (as shown in the screenshot), but is actually contains an AutoIt executable script.

read from source :

https://thehackernews.com/2017/12/cryptocurrency-hack-facebook.html