ET MALWARE ELF/Chacha.DDoS/Xor.DDoS Stage 2 CnC Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.user_agent;
content:"LuaSocket|20|"; depth:10; fast_pattern;
http.request_body;
content:"macaddress="; depth:11;
content:"&device="; distance:0;
content:"&type="; distance:0;
content:"&version="; distance:0;
http.connection;
content:"close,|20|TE"; depth:9;
http.header_names;
content:"TE|0d 0a 0d 0a|";
content:!"Referer";
Raw source ET MALWARE ELF/Chacha.DDoS/Xor.DDoS Stage 2 CnC Checkin · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE ELF/Chacha.DDoS/Xor.DDoS Stage 2 CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.user_agent;
    content:"LuaSocket|20|"; depth:10; fast_pattern;
    http.request_body;
    content:"macaddress="; depth:11;
    content:"&device="; distance:0;
    content:"&type="; distance:0;
    content:"&version="; distance:0;
    http.connection;
    content:"close,|20|TE"; depth:9;
    http.header_names;
    content:"TE|0d 0a 0d 0a|";
    content:!"Referer";
    reference:url,www.welivesecurity.com/2018/10/18/new-linux-chachaddos-malware-distributed-servers-vestacp-installed/;
    classtype:command-and-control;
    sid:2026523; rev:2;
    metadata:affected_product Linux, created_at 2018_10_18, deployment Perimeter, malware_family ChaChaDDoS, malware_family XorDDoS, performance_impact Low, confidence High, signature_severity Major, tag DDoS, updated_at 2020_08_26;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.