alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED Styx Exploit Kit - HTML"; flow:to_server,established; urilen:>300; content:".htm"; fast_pattern:only; http_uri; pcre:"/^\/[a-zA-Z0-9_\x2f-]{300,}\.html?$/U"; content:"/"; http_uri; offset:1; content:"_"; http_uri; offset:1; content:"-"; offset:1; http_uri; classtype:exploit-kit; sid:2017841; rev:5; metadata:created_at 2013_12_12, signature_severity Unknown, updated_at 2021_06_23;)