I've recently noticed this in my logs:=20

Oct 15 15:30:04 mysrv sshd[9563]: Bad protocol version=20
identification 'POST /unauthenticated//..%01/..%01/..%01/..%01/..%01/..%01/=
=2E.
%01/..%01/..%01/..%01/..%01/..%01/..%01' from 59.106.20.158

Oct =C2=A01 17:14:51 mysrv sshd[9915]: Bad protocol version=20
identification '\377\364\377\375\006\377\364\377\375\006\377\364\ 377\375\00=
6'=20
from 84.58.87.123
Oct =C2=A01 17:15:13 airrocket sshd[11982]: Bad protocol version identifica=
tion ''=20
from 84.58.87.123

Did anyone else notice similar things? Does anyone know what vulnerability=
=20
they are attacking?

Thanks,

=2D-=20
Tim