alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ThreatFox payload delivery (url - confidence level: 90%)"; flow:established,from_client; http.method; content:"GET"; http.uri; content:"/utm_term=structured&utm_source=messaging&utm_campaign=pf_guest_request&utm_medium=email&utm_content=booknr&res_id=5155216308&hotel_id=2052987/"; depth:143; nocase; http.host; content:"msg-booking.com"; depth:15; isdataat:!1,relative; reference:url, threatfox.abuse.ch/ioc/1693397/; target:src_ip; metadata:confidence_level 90, first_seen 2026_01_09; classtype:trojan-activity; sid:91693397; rev:1;)