Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING Base64 Encoded octet-stream File in HTML Body (Mime Type)"; flow:established,to_client; http.response_body; content:"|3c|html"; content:"data|3a|application|2f|octet|2d|stream|3b|base64|2c|"; fast_pattern; distance:0; classtype:misc-activity; sid:2047790; rev:2; metadata:attack_target Client_Endpoint, created_at 2023_08_28, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Informational, updated_at 2023_10_06, reviewed_at 2023_10_06; target:dest_ip;)