alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Unknown Exploit Kit Landing Page"; flow:established,to_server; http.uri; content:"/beacon/"; fast_pattern; content:".htm"; distance:8; within:4; endswith; pcre:"/\/beacon\/[a-f0-9]{8}\.htm$/"; classtype:exploit-kit; sid:2015840; rev:4; metadata:created_at 2012_10_25, confidence Medium, signature_severity Major, updated_at 2024_03_17;)