Watchout - since November 2017 spoofed emails are being sent to unsuspecting users for infecting the computers. These emails are supposed to be sent by commonly used printer and scanner brands.

The emails contain very regular and normal looking subject lines such as Scanned from HO, Scanned from Canon or Scanned from Epson, etc. Cybercrooks have modified extension and file names and hidden the malicious coding in such a way that email antivirus software cannot detect them.

For More
https://www.hackread.com/spoofed-emails-from-printer-vendors-install-backdoor