It is essential to protect NAS from ransomware
Recently, ransomware WannaCry spreads like a worm through NSA cyber weapon called Eternal Blue. It infected over 200.000 computers worldwide. Once a computer is infected, it can spread to all the devices on the same network in seconds.
If the infected computer user with write access to NAS share folder, then you may find the files have been encrypted by the ransomware on the NAS, even if the share location is not mapped as a network drive. Evidently, ransomware is a big threat to those who manage network-attached storage (NAS) or other network-based devices. So, how to prepare for NAS ransomware protection?
Use write access carefully
For NAS shared folders that you do not need to write to regularly, then just give read-only access. You can create a special account that has write access. When you do need to write data to that location, just log in with this account to make changes.
You should try your best to prevent anyone who has write access to the NAS doing something unsafe, like clicking strange email attachments or suspicious links. It will be helpful if you can change User Account Control to Always Notify. You may find it annoying at first, but it can prevent some unnecessary issues.
You should always install Windows update and set it automatic update because ransomware can attack those computers without patches. You should always turn anti-virus software on and keep updated. However, that is not enough for NAS virus protection.
Backup NAS regularly
No matter how careful you are, there is still chance that your NAS share will get infected because new ransomware virus may be more insidious and threatening. Therefore, you should backup the folders to which many people have write access regularly.
As you may aware, Windows backup and restore tool does not allow you to include NAS network location as backup source, so you need third party backup software. AOMEI Backupper Free for ransomware is specially designed to protect your NAS from ransomware.
AOMEI Backupper is quite easy to use. You can directly specify the NAS share folder location as the backup source without the need to map the NAS device to local. You should save the backup offsite so that the virus cannot touch. For example,
To backup NAS to external hard drive:
Step1. Download and install this software.
Step2. With its main interface, click “Backup” and then select “File Backup”.
Step3. Click “Add Folder” and then select Browse -> Share/NAS -> Add share or NAS device to specify NAS location.
Step4. Specify the NAS path and choose the folders you want to include in the backup.
Step5. Click “Step 2” to choose the external hard drive as destination path and click Start Backup.
If possible, you can save backup copies to two different locations. Then your NAS ransomware protection is complete.