alert tcp [$HOME_NET,$HTTP_SERVERS] any -> $EXTERNAL_NET any (msg:"ET POLICY Anonymous LDAPv3 Bind Request Outbound"; flow:established,to_server; flowbits:set,ET.LDAPAnonBindRequest; flowbits:isnotset,ET.LDAPAnonBindRequest; stream_size:server,<,5; dsize:14; content:"|30 0c 02 01|"; startswith; content:"|60 07 02 01 03 04 00 80 00|"; endswith; reference:url,ldap.com/ldapv3-wire-protocol-reference-bind/; classtype:policy-violation; sid:2034704; rev:2; metadata:attack_target Client_and_Server, created_at 2021_12_14, deployment Perimeter, confidence High, signature_severity Informational, updated_at 2021_12_20;)