alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Linux/Venom CnC Beacon"; flow:established,to_server; content:"|9e ab 49 31 08 53 b5 d4|"; depth:8; reference:url,security.web.cern.ch/security/venom.shtml; classtype:command-and-control; sid:2023716; rev:1; metadata:affected_product Linux, attack_target Client_Endpoint, created_at 2017_01_11, deployment Perimeter, deployment Datacenter, malware_family Linux_Venom, 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;)