NAS backup.

[andicole0]

Would the backup app on a NAS be susceptible to ransomware? Currently my backups run from Windows programs using mapped drives. I'm thinking of attaching a usb disk to a NAS and letting the local app take the odd backup as a fall back. That drive wouldn't be visible from any pc on my network. Obviously a few copies of the data would be saved so I don't kust backup any encrypted data, should that happen.
Andi.

 

[Lmg80]

USB are usually discovered through network so potentially not. I think you have to very naïve to get affected in the first instance as I assume these ransomwares expect user of a file distributed via a dodgy email that should not have been opened

 

[Raumarik]

Anything mapped can be hit by ransom ware easily. Keep it unmapped and you should be fine from most, but not all variants.

It's more about permissions, if you backup to the NAS using mapped drives on one account and then have read only access on another which you use day to day then you should be fine. If the account that's compromised has admin rights or modify access to your NAS and it's mapped, consider it vulnerable.

From what you're saying it's not visible connected via USB, so it should be ok. As long as you have versioning on as obviously if it backs up after it's encrypted and overwrites items on your backup then you've got a problem.

I'd suggest considering something like Crashplan to run backups locally, it's free and extremely good. I pay for mine so it's in the cloud but it's got a decent reputation now and is highly reliable.

 

[andicole0]

This NAS is not a backup, it's a live RAID set. Backup is taken to another NAS but done using a Windows program. Both NAS devices are susceptible if my PC's get attacked so I was wanting to attach a drive to the main NAS and let it take a backup locally keeping at least two copies.
Andi.