alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Vicepass CnC Beacon"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/index.php?data="; depth:16; http.header; content:!"User-Agent|3a|"; content:!"Accept"; content:!"Referer|3a|"; content:"Host|3a|"; depth:5; pcre:"/^Host\x3a[^\r\n]+\r\n(?:\r\n)?$/mi"; reference:md5,5f1997927e94b98982e5ee2cea095956; classtype:command-and-control; sid:2020690; rev:3; metadata:attack_target Client_Endpoint, created_at 2015_03_13, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_05_19, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)