nanog mailing list archives

Re: Is malicious asymmetrical routing still a thing?


From: William Herrin <bill () herrin us>
Date: Thu, 9 Mar 2023 17:34:25 -0800

On Thu, Mar 9, 2023 at 5:12 PM William Herrin <bill () herrin us> wrote:
It's trivial to turn a $5 VPS into a disposable VPN head-end that can
spray TCP SYN packets at a modest rate, and once the packet is on the
backbone somewhere in the world not only can't you do anything about
it, it's just on the near side of impossible to figure out where it
originally entered.

Come to think of it, there are probably botnets for rent where the
"owner" has verified non-compliance with BCP38 and will arrange for X
number of fresh machines spread across everywhere to VPN into your
server and pass packets for you. Why not bring in a little extra cash
while waiting for the next DDOS target? Particularly when the packets
emitted are unlikely to be traceable to the bot.

Regards,
Bill Herrin



-- 
For hire. https://bill.herrin.us/resume/


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