alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE [CrowdStrike] ANCHOR PANDA Torn RAT Beacon Message Header Local"; flow:established, to_server; dsize:16; content:"|00 00 00 11 c8 00 00 00 00 00 00 00 00 00 00 00|"; depth:16; flowbits:set,ET.Torn.toread_header; flowbits:noalert; reference:url,blog.crowdstrike.com/whois-anchor-panda/index.html; classtype:trojan-activity; sid:2016659; rev:2; metadata:attack_target Client_Endpoint, created_at 2013_03_22, deployment Perimeter, confidence High, 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;)