alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Generic Request to gate.php Dotted-Quad"; flow:established,to_server; http.uri; content:"/gate.php"; nocase; fast_pattern; http.host; pcre:"/^(?:\d{1,3}\.){3}\d{1,3}(?:\x3a\d{1,5})?$/"; reference:md5,d7c19ba47401f69aafed551138ad7e7c; reference:md5,de4961b8c4fb7e3bd5ea9f1df2b5d182; reference:md5,0680ff9251b686e9025b36c577163f01; classtype:trojan-activity; sid:2022986; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_07_26, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2020_08_31; target:src_ip;)