alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET INFO DoSWF Flash Encryption Banner"; flow:to_client,established; file_data; content:"FWS"; within:3; content:"DoSWF"; distance:0; classtype:misc-activity; sid:2015704; rev:8; metadata:created_at 2012_09_18, deprecation_reason Age, confidence High, signature_severity Informational, updated_at 2023_11_27;)