alert tcp $HOME_NET any -> $EXTERNAL_NET 1024: (msg:"ET MALWARE Tsyrval Panda CnC Beacon"; flow:established,to_server; content:"|75 1C 11 10 75 01 14 07 12 58 5F|"; offset:3; depth:14; classtype:command-and-control; sid:2021437; rev:1; metadata:attack_target Client_Endpoint, created_at 2015_07_20, deployment Perimeter, confidence Medium, signature_severity Major, tag c2, updated_at 2019_07_26, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)