alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING Suspicious Embedded Shockwave Flash In PDF"; flow:established,to_client; content:"PDF-"; depth:300; content:"x-shockwave-flash"; nocase; distance:0; pcre:"/(a|#61)(p|#70)(p|#70)(l|#6C)(i|#69)(c|#63)(a|#61)(t|#74)(i|#69)(o|#6F)(n|#6E)(\x2F|#2F)x-shockwave-flash/i"; classtype:bad-unknown; sid:2011866; rev:5; metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2010_10_29, deployment Perimeter, deprecation_reason Relevance, performance_impact Significant, confidence Medium, signature_severity Major, tag Web_Client_Attacks, updated_at 2024_04_09;)