Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Blockchain RPC Domain in TLS SNI (rpc .ftm .tools)"; flow:established,to_server; tls.sni; bsize:13; content:"rpc.ftm.tools"; fast_pattern; reference:url,chainlist.org/chain/250; classtype:misc-activity; sid:2065527; rev:1; metadata:created_at 2025_10_27, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_27;)