alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE Shafttt MySQL Bruteforce Bot CnC Beacon";
flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.request_body;
content:"get="; fast_pattern; depth:4;
pcre:"/^get=\d+(?:$|&)/";
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:52;
http.header_names;
content:!"Referer|0d 0a|";
reference:md5,cb4ab17468984f1b292adac9f745cb2b;
classtype:command-and-control;
sid:2023815; rev:3;
metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_01_31, deployment Perimeter, malware_family Shafttt, confidence High, signature_severity Major, tag c2, updated_at 2020_08_04, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)