I would encourage you to contact the FBI. Another ISP told me a fairly positive story after being in the same situation.
--TimH On Thu, 20 May 2021 21:26:50 +0200 Baldur Norddahl <baldur.nordd...@gmail.com> wrote: > Hello > > We got attacked by a group that calls themselves "Fancy Lazarus". They want > payment in BC to not attack us again. The attack was a volume attack to our > DNS and URL fetch from our webserver. > > I am interested in any experience in fighting back against these guys. > > Thanks, > > Baldur