I was attacked by DDROS Chargen

Hi,

How did you verify that your UTM was attacked by DRDOS?  

One of the ways to prevent this is to have the IPS up2date and configured on UTM. Refer:

https://community.sophos.com/kb/en-us/120329

You will also need to start with your ISP and ask them to help.

Thanks

Yes, i'm enabled IPS , but not working :(