alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Suspected Bitter Elephant APT Related Activity (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".php?id="; content:"|3b|timeout"; distance:0; endswith; fast_pattern; http.header_names; content:!"Referer"; reference:md5,cce89f4956a5c8b1bec82b21e371645b; reference:url,asec.ahnlab.com/ko/50851/; classtype:trojan-activity; sid:2047637; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_08_14, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_08_14; target:src_ip;)