alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Volatile Cedar Win32.Explosive CnC Beacon 2"; flow:established,to_server; content:"|3C 2A 60|"; depth:3; fast_pattern; content:"|60 2A 3E|"; distance:0; pcre:"/^\x3c\x2a\x60[\x20-\x7e]+\x60\x2a\x3e$/"; reference:url,checkpoint.com/downloads/volatile-cedar-technical-report.pdf; classtype:command-and-control; sid:2020808; rev:1; metadata:attack_target Client_Endpoint, created_at 2015_03_31, deployment Perimeter, 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;)