alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET SCAN Httprecon Web Server Fingerprint Scan"; flow:to_server,established; http.method; content:"GET"; http.uri; content:"/etc/passwd?format="; content:"><script>alert('xss')"; content:"traversal="; reference:url,www.computec.ch/projekte/httprecon/; classtype:attempted-recon; sid:2008627; rev:11; metadata:created_at 2010_07_30, confidence Medium, signature_severity Informational, updated_at 2020_09_14;)