alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY Outdated Flash Version M2"; flow:established,to_server; threshold:type limit, count 1, seconds 60, track by_src; http.header; content:"X-Requested-With|3a 20|ShockwaveFlash/"; fast_pattern; content:!"32.0.0.453|0d 0a|"; within:12; content:!"32.0.0.445|0d 0a|"; within:12; reference:url,www.adobe.com/software/flash/about/; classtype:policy-violation; sid:2024379; rev:37; metadata:affected_product Adobe_Flash, created_at 2017_06_13, performance_impact Low, confidence High, signature_severity Informational, updated_at 2020_12_07;)