Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED KINS/ZeusVM Variant CnC Beacon"; flow:established,to_server; content:"POST"; http_method; content:".php/"; http_uri; fast_pattern:only; content:!"Accept-"; http_header; content:!"Referer|3a|"; http_header; pcre:"/^[\x20-\x7e\s]{0,20}[^\x20-\x7e\s]/P"; pcre:"/\.php\/(?:[a-zA-Z0-9]+\/)+[A-F0-9]{8}$/U"; pcre:"/^User-Agent\x3a[^\r\n]+(?: MSIE |rv\x3a11)/Hmi"; reference:md5,7a015848f24de23da43e2ca9970df11e; classtype:command-and-control; sid:2021524; rev:2; metadata:attack_target Client_Endpoint, created_at 2015_07_23, 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;)