alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE [CrowdStrike] ANCHOR PANDA Torn RAT Beacon Message"; dsize:200; flow:to_server,established; flowbits:isset,ET.Torn.toread_header; content:"|40 7e 7e 7e|"; offset:196; depth:4; reference:url,blog.crowdstrike.com/whois-anchor-panda/index.html; classtype:trojan-activity; sid:2016660; rev:2; metadata:attack_target Client_Endpoint, created_at 2013_03_22, 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;)