alert tls $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET POLICY IPFS Domain (storage .snark .art in TLS SNI)";
flow:established,to_server;
tls.sni;
content:"storage.snark.art"; endswith; nocase;
xbits:set,ET.dropsite,track ip_src;
reference:md5,4c24760ed6e163caf0cff96177475ab6;
classtype:policy-violation;
sid:2033388; rev:1;
metadata:attack_target Client_Endpoint, created_at 2021_07_22, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_22;
)