alert dns $HOME_NET any -> any any (msg:"ET HUNTING Observed DNS Query for EmerDNS TLD (.lib)"; content:"|01|"; offset:2; depth:1; content:"|00 01 00 00 00 00 00|"; distance:1; within:7; content:"|03|lib|00|"; nocase; distance:0; fast_pattern; reference:url,wiki.opennic.org/opennic/dot; reference:url,emercoin.com/en/documentation/blockchain-services/emerdns/emerdns-introduction; classtype:bad-unknown; sid:2029970; rev:2; metadata:attack_target Client_Endpoint, created_at 2020_04_20, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_20;)