alert http $HOME_NET any -> [216.157.99.0/24,72.51.32.0/20,76.74.152.0/21] any (msg:"ET EXPLOIT Possible HanJuan Flash Exploit"; flow:established,to_server; http.uri; content:".swf"; fast_pattern; endswith; pcre:"/^\/(?:[a-z0-9]{3,7}\/)?[a-z]{3,7}\.swf$/"; classtype:trojan-activity; sid:2019674; rev:4; metadata:created_at 2014_11_07, confidence Medium, signature_severity Major, updated_at 2024_03_19;)