alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY External IP Lookup (avast .com)"; flow:established,to_server; http.method; content:"GET"; http.host; content:"ip-info.ff.avast.com"; fast_pattern; classtype:policy-violation; sid:2029575; rev:2; metadata:attack_target Client_Endpoint, created_at 2020_03_04, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2020_03_04, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1614, mitre_technique_name System_Location_Discovery;)