alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE Interlock Ransomware Fake Updater CnC Callback";
flow:established,to_server;
flowbits:set,ET.Interlock;
http.method;
content:"post"; nocase;
http.uri;
content:"/init1234"; fast_pattern; nocase;
reference:url,blog.sekoia.io/interlock-ransomware-evolving-under-the-radar/;
classtype:trojan-activity;
sid:2062145; rev:3;
metadata:attack_target Client_Endpoint, created_at 2025_05_07, deployment Perimeter, malware_family Interlock, performance_impact Low, confidence Medium, signature_severity Critical, updated_at 2025_05_16, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
target:src_ip;
)