alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE W32/Mevade.Variant CnC POST";
flow:established,to_server;
http.method;
content:"POST";
http.uri;
pcre:"/^\x2F(?:policy|cache)$/";
http.header;
content:"uuid|3A 20|";
http.header_names;
content:!"User-Agent|0d 0a|";
http.request_body;
content:"|C8 71 04 ED 87 F6 DD 77 87|"; depth:9;
reference:url,labs.umbrella.com/2013/10/24/mysterious-dga-lets-investigate-sgraph/;
reference:url,www.anubisnetworks.com/unknowndga17-the-mevade-connection/;
classtype:command-and-control;
sid:2017959; rev:3;
metadata:created_at 2014_01_12, confidence Medium, signature_severity Major, updated_at 2020_04_27;
)