alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET CURRENT_EVENTS NullHole URI Struct Jul 22 2015 M3"; flow:established,to_client; http.stat_code; content:"302"; http.location; content:"/e.html"; fast_pattern; endswith; pcre:"/^[a-f0-9]{32}\/e\.html$/"; http.header_names; content:"|0d 0a|Set-Cookie|0d 0a|"; classtype:trojan-activity; sid:2021508; rev:4; metadata:created_at 2015_07_22, signature_severity Major, updated_at 2024_03_03;)