alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Splinter Red Team Tool Activity"; flow:established,to_server; http.uri; content:"/implant/implants"; startswith; fast_pattern; reference:md5,820575f6735ab0982d289f45c95f7cc1; classtype:trojan-activity; sid:2051516; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_03_07, deployment Perimeter, confidence Medium, signature_severity Major, tag c2, updated_at 2024_03_07, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)