alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET INFO MP4 in HTTP Flowbit Set"; flow:from_server,established; file_data; content:"|66 74 79 70 6D|"; offset:4; depth:5; content:"mp4"; within:12; flowbits:set,ET.mp4.in.http; flowbits:noalert; classtype:not-suspicious; sid:2023713; rev:4; metadata:attack_target Client_Endpoint, created_at 2017_01_10, deployment Perimeter, deprecation_reason Relevance, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_04_24;)