alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET RETIRED [ANY.RUN] Echida Botnet Check-In M2";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/command_bot.php?hwid="; fast_pattern;
pcre:"/^[A-F0-9]{32}/R";
http.accept;
content:"application/x-www-form-urlencoded";
http.content_type;
content:"application/x-www-form-urlencoded";
http.header_names;
content:!"Referer|0d 0a|";
content:!"User-Agent|0d 0a|";
reference:md5,68e3359674ee7d49550b09e7ff69dcce;
reference:url,twitter.com/ViriBack/status/1698693553168236869;
classtype:command-and-control;
sid:2047922; rev:2;
metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2023_09_05, deployment Perimeter, former_category MALWARE, malware_family echida_botnet, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_10_02, reviewed_at 2024_10_02;
target:src_ip;
)