alert http1 $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|"; startswith; 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:5; metadata:created_at 2014_01_12, confidence Medium, signature_severity Major, updated_at 2024_04_14;)