alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32/Bravix.Dropper CnC Beacon"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/get.php?file=cmds/main"; http.header_names; content:!"Referer|0d 0a|"; reference:md5,19484a240a16c7faea84dcac0c38d118; classtype:command-and-control; sid:2019128; rev:3; metadata:attack_target Client_Endpoint, created_at 2014_09_05, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_05_04, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)