alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE CoinVault CnC Beacon M2"; flow:established,to_server; http.method; content:"POST"; http.request_body; content:"eyJib3RpbmZvIjp7InVwbG9hZElkIjo"; fast_pattern; http.header_names; to_lowercase; content:!"|0d 0a|user-agent|0d 0a|"; content:!"|0d 0a|referer|0d 0a|"; content:!"|0d 0a|accept"; reference:md5,c7e34daa9e9160ce433a6cae74867711; reference:url,kernelmode.info/forum/viewtopic.php?f=16&t=3581; classtype:command-and-control; sid:2020908; rev:5; metadata:attack_target Client_Endpoint, created_at 2015_04_14, deployment Perimeter, signature_severity Major, tag c2, updated_at 2024_04_20, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)