alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE CoinVault CnC Beacon Response"; flow:established,from_server; file_data; content:"eyJrbm9ja3RpbWUiOj"; within:18; reference:md5,c7e34daa9e9160ce433a6cae74867711; reference:url,kernelmode.info/forum/viewtopic.php?f=16&t=3581; classtype:command-and-control; sid:2020909; rev:2; metadata:attack_target Client_Endpoint, created_at 2015_04_14, 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;)