Don’t download or access e-mail attachments from people you don’t know. This is the main spreading method for CTB Locker.
Don’t click links in e-mails you receive from unknown e-mail addresses.
Create a Backup for your operating system or for your most important data. Make sure the backup is not placed in the same location with your actual operating system. In case your system is affected by malware or ransomware, you will not be able to access the backup.
Make sure you’re security solution detects and blocks CTB Locker. At this moment, Heimdal Security is one of the few software solutions that detect this ransomware.
Increase your online protection level by adjusting your web browser security settings.
Keep your Windows operating system and your vulnerable software up-to-date with the latest security patches.