alert icmp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN ICMP Delphi Likely Precursor to Scan"; itype:8; icode:0; content:"Pinging from Delphi code written"; reference:url,www.koders.com/delphi/fid942A4EAF946B244BD3CD9BC83FEAAC35BA1F38AB.aspx; classtype:misc-activity; sid:2010681; rev:3; metadata:created_at 2010_07_30, confidence Medium, signature_severity Informational, updated_at 2019_07_26;)