alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE W32/Antifulai.APT CnC Beacon 1";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?secue="; fast_pattern;
content:"&pro=";
content:"|2c|"; distance:0;
http.header_names;
content:!"Referer|0d 0a|";
reference:url,secureworks.com/resources/blog/research/apt-campaign-leverages-the-cueisfry-trojan-and-microsoft-word-vulnerability-cve-2014-1761/;
reference:md5,1c29b24d4d4ef7568f519c470b51bbed;
classtype:targeted-activity;
sid:2018631; rev:6;
metadata:attack_target Client_Endpoint, created_at 2014_05_20, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_09_24, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)