Just a heads-up to Draytek router users out there. Draytek have issued a warning about potential malicious DNS configuration changes that can be made on their routers.
https://www.draytek.co.uk/support/security-advisories/kb-advisory-csrf-and-dns-dhcp-web-attacks
Note that the web page took an age to open for me so be patient.
Essentially, if your router’s DNS settings have been changed so that they include the address 38.134.121.95 your router has been compromised.
Draytek recommend installing the latest firmware (which they are compiling), and signing up to their mailing list so that their customers can be notified about updates to this situation and any future issues:
https://www.draytek.co.uk/support/downloads
https://www.draytek.co.uk/information/mailing-list