alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET INFO [TW] IPFS Protocol HTTP Headers Observed"; flow:established,to_client; http.header_names; to_lowercase; content:"|0d 0a|x-ipfs-"; nocase; fast_pattern; threshold:type threshold, track by_src, count 10, seconds 30; classtype:misc-activity; sid:2036229; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_04_15, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_26, reviewed_at 2024_10_14;)